{"title":"Tohatsu 4-Stroke 9.9HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n \u003cp\u003e\n This page supports Tohatsu 4‑Stroke 9.9 HP outboard engines and helps you quickly find compatible parts and practical service guidance. Below you’ll find maintenance tips, common replacement parts, and troubleshooting checks. You can also browse the main Tohatsu collection, and at the bottom of this page you’ll find a quick link to start browsing parts for this engine. On the collection page, use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category.\n \u003c\/p\u003e\n \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block;padding:10px 14px;background:#0b62a6;color:#fff;text-decoration:none;border-radius:6px;\"\u003eBrowse All Tohatsu Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:18px 0;\"\u003e\n \u003ch2\u003eHow to Identify Your 9.9 HP Model\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eNameplate\/serial plate: Typically found on the swivel (clamp) bracket; a matching engine serial may also appear on the cylinder block. Take a clear photo for reference.\u003c\/li\u003e\n \u003cli\u003eModel code \u0026amp; suffix: Tohatsu 9.9 HP 4‑stroke models are commonly labeled MFS9.9D with suffixes indicating start type, controls, power tilt, and shaft length (e.g., MF\/EF\/EFT for tiller; EP\/EPT for remote; S\/L\/UL for 15\/20\/25‑inch shafts).\u003c\/li\u003e\n \u003cli\u003ePlatform clues: These 9.9D engines are 4‑stroke, twin‑cylinder outboards in the 351 cc class. Typical spark plug is NGK DCPR6E; verifying this helps confirm you’re in the correct family.\u003c\/li\u003e\n \u003cli\u003eYear hints: Some serial label codes indicate production year via a suffix. If uncertain, rely on the full model + serial and shaft length\/control type when selecting parts.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:18px 0;\"\u003e\n \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n \u003ch3\u003eTohatsu MFS9.9D Family\u003c\/h3\u003e\n \u003ctable style=\"width:100%;border-collapse:collapse;max-width:960px;\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eFeature\u003c\/th\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eDescription\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInline‑2, 4‑stroke, carbureted; displacement ~351 cc; water‑cooled with through‑hub exhaust.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eMFS9.9D variants such as MF\/EF\/EFT (tiller) and EP\/EPT (remote). Many wear items are shared with MFS15D\/MFS20D siblings.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eLightweight and fuel‑efficient with smooth low‑speed manners; broad parts availability; straightforward maintenance.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eVerify shaft length (S\/L\/UL), start type (manual\/electric), and control type (tiller\/remote) for cable, harness, and bracket compatibility. Typical WOT range ~5000–6000 rpm.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:18px 0;\"\u003e\n \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n \u003cp\u003eIntervals below are general guidelines for recreational use. Always follow the official service manual and adjust frequency for heavy, commercial, or salt\/brackish operation.\u003c\/p\u003e\n \u003ctable style=\"width:100%;border-collapse:collapse;max-width:960px;\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eItem\u003c\/th\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eInterval*\u003c\/th\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eRemarks\u003c\/th\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eParts Link\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEngine oil (FC‑W 10W‑30\/10W‑40)\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eApprox. 1.0 L; change more often for extended idling or severe use.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eOil filter\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 200 hours or 2 years\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace with oil changes per schedule; check for leaks after first start.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAPI GL‑5 80–90; inspect for water intrusion (milky oil) and metal fines.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-lower-unit-seal-kits\"\u003eTohatsu Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect every 100 hours; replace as needed\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eTypical spec NGK DCPR6E; gap 0.8–0.9 mm; check color and deposits.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eFuel filter (inline\/engine)\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 100 hours or each season\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace or clean; consider water‑separating filter for ethanol fuels.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 2–3 years or 200 hours\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace sooner if weak tell‑tale or overheat alarm; critical for cooling.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAnodes (sacrificial)\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect every 50 hours; replace when 50–70% consumed\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eDo not paint or grease; essential protection in salt\/brackish water.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller \u0026amp; hardware\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect each trip; torque check seasonally\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCheck blades for bends\/chips; verify nut torque and cotter pin.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003cp style=\"font-size:12px;color:#555;margin-top:8px;\"\u003e*Intervals are typical for recreational use. Always reference your official service schedule.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:18px 0;\"\u003e\n \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n \u003cli\u003eGearcase \u0026amp; Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-lower-unit-seal-kits\"\u003eTohatsu Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/outboard-hydrofoil-stabilizers\"\u003eOutboard Hydrofoil Stabilizers\u003c\/a\u003e\n\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:18px 0;\"\u003e\n \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n \u003ctable style=\"width:100%;border-collapse:collapse;max-width:960px;\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eSymptom\u003c\/th\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eCheck First\u003c\/th\u003e\n \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eDebris on intake screen; impeller wear; thermostat sticking; anodes heavily consumed.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screen, anodes\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eDamaged prop; fouled spark plug; clogged fuel filter; old fuel; throttle not opening fully.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller, spark plugs, fuel filter\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eChoke\/enrichment operation; fresh fuel; plug gap; vacuum leaks; idle speed setting.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eSpark plugs, fuel filter, carb service parts\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eGearcase noise or milky gear oil\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eLow oil level; water intrusion past seals; fishing line on prop shaft; chipped gears.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eLower unit seal kit, gear oil, prop hardware\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eExcessive smoke (4‑stroke)\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEngine oil overfilled; engine stored on wrong side; prolonged idling with cold oil.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEngine oil, oil filter, spark plugs\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:18px 0;\"\u003e\n \u003ch2\u003eFAQs\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eAre parts interchangeable across 9.9D, 15D, and 20D models?\u003c\/summary\u003e\n \u003cp\u003eMany wear items (impeller kits, anodes, some gearcase seals, and fasteners) are shared across the MFS9.9D\/15D\/20D family. Propellers and some fuel\/jetting, control, or harness parts differ. Always confirm with your full model code, shaft length, and control\/start type.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n \u003cp\u003eEvery 2–3 years or ~200 hours in normal use. Replace sooner if the tell‑tale stream weakens, you beach in sand, or you run in silty\/brackish water frequently.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow often should I change lower unit gear oil?\u003c\/summary\u003e\n \u003cp\u003eAt least every 100 hours or annually. Inspect mid‑season if you notice impact, prop strikes, or shifting issues. Milky oil indicates water intrusion—service seals before further use.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n \u003cp\u003eProvide the full model (e.g., MFS9.9D with suffix), serial number, shaft length (S\/L\/UL), start type (manual\/electric), and control type (tiller\/remote). A photo of the nameplate and the part you’re replacing is also helpful.\u003c\/p\u003e\n \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:18px 0;\"\u003e\n \u003cp\u003eReady to find parts by horsepower, year, and model? Browse our main Tohatsu collection and use the filters to narrow to your exact setup.\u003c\/p\u003e\n \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#0b62a6;color:#fff;text-decoration:none;border-radius:6px;\"\u003eShop Tohatsu Outboard Parts\u003c\/a\u003e\n \u003cp style=\"margin-top:8px;color:#555;font-size:13px;\"\u003eIf you’re unsure about your model, send us a clear photo of the nameplate and the part you need—we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"hydrofoil-stabilizer-fits-outboard-motors-5-150-hp-replaces-seasierra-fo2001-uanofcn-fo2001","title":"Hydrofoil Stabilizer – Fits Outboard Motors 5-150 HP (Replaces SeaSierra FO2001, UanofCn FO2001)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis dorsal fin style \u003cstrong\u003eHydrofoil Stabilizer\u003c\/strong\u003e is designed for outboard motors and stern drives from 5 to 150 HP. By mounting to the anti-ventilation plate, it helps boats get on plane faster, reduces bow rise and porpoising, and can significantly improve fuel efficiency at cruising speeds. It offers a universal fit for a wide range of Yamaha, Mercury, Honda, Suzuki, Tohatsu, Johnson, and Evinrude models.\u003c\/p\u003e\n\u003cp\u003eThis part is a direct replacement for SeaSierra FO2001, UanofCn FO2001, QuickMarine HS001, and other equivalents.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls directly to the anti-ventilation plate with included bolt-on hardware.\u003c\/li\u003e\n\u003cli\u003eConstructed from durable, marine-grade reinforced PA66 nylon plastic.\u003c\/li\u003e\n\u003cli\u003eThe kit includes all necessary stainless steel mounting hardware for a complete installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eSeaSierra\u003c\/td\u003e\n \u003ctd\u003eFO2001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eUanofCn\u003c\/td\u003e\n \u003ctd\u003eFO2001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eQuickMarine\u003c\/td\u003e\n \u003ctd\u003eHS001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eXingrong\u003c\/td\u003e\n \u003ctd\u003eHS001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNorthBoat\u003c\/td\u003e\n \u003ctd\u003eHS001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model and horsepower in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMariner\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eHonda\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSuzuki\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eJohnson\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEvinrude\u003c\/td\u003e\n \u003ctd\u003eOutboards\u003c\/td\u003e\n \u003ctd\u003e5–150\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMerCruiser\u003c\/td\u003e\n \u003ctd\u003eStern Drives\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOMC\u003c\/td\u003e\n \u003ctd\u003eStern Drives\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003eAftermarket\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eHydrofoil Stabilizer \/ Planing Aid\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eMounts to anti-ventilation plate with included hardware\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eBolt-on with supplied hardware\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine Grade Reinforced PA66 Nylon Plastic\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack (Yellow, Blue, Gray, White variants available)\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e10-1\/4\" × 8-1\/4\" (260.4 mm × 209.6 mm)\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e2.41 pounds (1.09 kg)\u003c\/dd\u003e\n \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eUniversal fit for outboard motors and stern drives\u003c\/dd\u003e\n \u003cdt\u003eThread Size\u003c\/dt\u003e\n\u003cdd\u003eIncludes stainless steel mounting hardware\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eDorsal fin style design with enhanced wing surface area\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 x Hydrofoil Stabilizer\u003c\/li\u003e\n \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Sets of Stainless Steel Mounting Hardware (bolts and nuts)\u003c\/span\u003e\u003c\/li\u003e\n \u003cli\u003e1 x Installation Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eEnsure the engine is off and the boat is securely trailered or on a lift.\u003c\/li\u003e\n \u003cli\u003ePlace the hydrofoil on the anti-ventilation plate, ensuring it is centered.\u003c\/li\u003e\n \u003cli\u003eMark the drilling-hole locations on the plate through the mounting holes of the hydrofoil.\u003c\/li\u003e\n \u003cli\u003eRemove the hydrofoil and drill the marked holes using an appropriately sized drill bit.\u003c\/li\u003e\n \u003cli\u003ePlace the hydrofoil back onto the plate, aligning the holes.\u003c\/li\u003e\n \u003cli\u003eInsert the stainless steel bolts from the top and attach the nuts from the bottom.\u003c\/li\u003e\n \u003cli\u003eTighten the hardware securely, but do not overtighten to avoid cracking the plate.\u003c\/li\u003e\n \u003cli\u003eCheck for a firm fit with no movement. The installation is now complete.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWill this fit my specific XYZ HP motor?\u003c\/summary\u003e\n \u003cp\u003eThis hydrofoil is designed for universal fitment on most outboard motors and stern drives in the 5 to 150 HP range. It is compatible with major brands like Yamaha, Mercury, Honda, and more. Always verify your anti-ventilation plate dimensions against the product specs (10-1\/4\" × 8-1\/4\") to ensure proper mounting.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat is the main benefit of the dorsal fin style?\u003c\/summary\u003e\n \u003cp\u003eThe dorsal fin design helps to reduce or eliminate cavitation by channeling water flow more effectively over the propeller. This improves tracking and stability, especially during turns, complementing the lift provided by the hydrofoil wings.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eCan this hydrofoil reduce porpoising?\u003c\/summary\u003e\n \u003cp\u003eYes, one of the primary functions of a hydrofoil is to combat porpoising (the rhythmic bouncing of the bow). By providing stern lift, it keeps the bow down and forces the hull to maintain a more consistent and stable attitude in the water.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eDo I need to drill holes in my engine?\u003c\/summary\u003e\n \u003cp\u003eYes, installation requires drilling four holes into the anti-ventilation (cavitation) plate of your outboard motor or stern drive. The package includes all necessary mounting hardware.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWill this affect my boat's top speed?\u003c\/summary\u003e\n \u003cp\u003eHydrofoils can slightly reduce top-end speed by a small margin (typically 1-2 MPH) due to increased drag. However, this is often offset by significant gains in hole shot, low-speed planing ability, and improved fuel economy at cruising speeds.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow often should I check the mounting hardware?\u003c\/summary\u003e\n \u003cp\u003eIt is good practice to inspect the mounting bolts and nuts as part of your regular pre-launch checklist, especially after the first few uses to ensure they remain tight. Check for tightness and signs of corrosion at least once per season.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717907124539,"sku":"19HS001FO2001","price":32.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/19HS001FO2001.png?v=1762938111"},{"product_id":"water-pump-impeller-fits-tohatsu-nissan-9-9hp-20hp-replaces-334-65021-0-47-803748-19210-935-003-5040046","title":"Water Pump Impeller – Fits Tohatsu \u0026 Nissan 9.9HP-20HP (Replaces 334-65021-0, 47-803748, 19210-935-003, 5040046)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eWater Pump Impeller – Fits Tohatsu \u0026amp; Nissan 9.9HP-20HP\u003c\/strong\u003e is designed for reliable performance in 2-stroke and 4-stroke outboard motors. It serves as a crucial component for engine cooling, fitting a wide range of Tohatsu models (M9.9, M12, M15, M18, MFS9.9, MFS15, MFS18, MFS20) and Nissan outboards (NS9.9, NS15, NS18, NSF9.9, NSF15, NSF18, NSF20).\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct interchange for several OEM and aftermarket part numbers, including Tohatsu 334-65021-0, Nissan 334-65021-0, Mercury 47-803748, Honda 19210-935-003, Evinrude 5040046, and Sierra 18-8921.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Installs as a direct replacement for the original part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Engineered with a plastic hub for saltwater use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInclusions:\u003c\/strong\u003e Includes one high-quality water pump impeller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e334-65021-0 \/ 334650210 \/ 334650210M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e334-65021-0 \/ 334650210 \/ 334650210M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-803748 \/ 8M0214944\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003e19210-935-003\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003e5040046\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-8921\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis impeller is known to fit the following Tohatsu 2-stroke and 4-stroke outboard models.\u003c\/p\u003e\n\u003cp\u003eIt is also compatible with the listed Nissan 2-stroke and 4-stroke outboard models.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Compatible Engine Models\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM12\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM15\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM18\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.9\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS15\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS18\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS20\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS9.9\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS15\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS18\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF9.9\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF15\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF18\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF20\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e334-65021-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect Replacement\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003ePlastic Hub\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eOverall Diameter: 41.11mm, Height: 23.51mm, Internal Shaft Insert Diameter: 13.88mm\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e12g (0.42oz)\u003c\/dd\u003e\n \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e8\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eFor saltwater use\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Water Pump Impeller (334-65021-0)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eDisconnect the battery and remove the engine cover before starting.\u003c\/li\u003e\n \u003cli\u003eLocate and unbolt the lower unit (gearcase) from the engine's midsection and carefully lower it.\u003c\/li\u003e\n \u003cli\u003eRemove the water pump housing bolts and lift the housing to expose the old impeller.\u003c\/li\u003e\n \u003cli\u003eTake note of the blade direction of the old impeller before removing it from the driveshaft.\u003c\/li\u003e\n \u003cli\u003eClean the interior of the water pump housing and inspect the wear plate for scoring or damage.\u003c\/li\u003e\n \u003cli\u003eSlide the new impeller onto the driveshaft. Turn the driveshaft clockwise while pressing down to correctly seat the blades inside the housing cup.\u003c\/li\u003e\n \u003cli\u003eReinstall the water pump housing, ensuring any gaskets are properly aligned.\u003c\/li\u003e\n \u003cli\u003eReattach the lower unit to the engine, refill the gear oil, and secure all bolts.\u003c\/li\u003e\n \u003cli\u003eOnce assembled, test the engine in water to confirm a steady stream from the cooling system's tell-tale port.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow do I know if this impeller fits my specific engine?\u003c\/summary\u003e\n \u003cp\u003eThe best way to confirm fitment is to match your original part number to the references in our Part Number Matrix. You can also check your model against the Engine \u0026amp; Model Compatibility table. If you are still unsure, please check the images and specifications against your old part before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are the signs of a failing water pump impeller?\u003c\/summary\u003e\n \u003cp\u003eCommon signs include a weak or non-existent water stream from the engine's tell-tale port, engine overheating alarms, or a noticeable decrease in engine performance. A visual inspection may show cracked, stiff, or broken blades.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow often should I replace my outboard's impeller?\u003c\/summary\u003e\n \u003cp\u003eAs a general maintenance rule, it is recommended to replace the water pump impeller every 1-2 years or every 100-200 hours of use, whichever comes first. This interval may be shorter if you frequently operate in sandy, silty, or saltwater conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717907353915,"sku":"jzf12111107","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/jzf12111107.png?v=1762938121"},{"product_id":"fuel-pump-fits-mercury-mariner-tohatsu-nissan-9-9-30-hp-johnson-evinrude-15-hp-replaces-803529t04-3h8-04000-1","title":"Fuel Pump – Fits Mercury\/Mariner\/Tohatsu\/Nissan 9.9-30 HP \u0026 Johnson\/Evinrude 15 HP (Replaces 803529T04, 3H8-04000-1)","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis pulse-driven mechanical \u003cstrong\u003eFuel Pump\u003c\/strong\u003e is designed for a wide range of outboard motors, including Mercury\/Mariner 9.9–30 HP 4-Stroke models (2005–present), Tohatsu\/Nissan 9.9–30 HP 4-Stroke models (2002–2018), and select Johnson\/Evinrude 15 HP 2-Stroke models.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct cross-reference for Mercury part numbers 803529T04 and 803529A04, Tohatsu\/Nissan 3H8-04000-1, and Johnson\/Evinrude 5041064.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures a simple two-bolt mounting system for straightforward installation.\u003c\/li\u003e\n\u003cli\u003eConstructed with a corrosion-resistant metal and plastic housing to withstand demanding marine environments.\u003c\/li\u003e\n\u003cli\u003eIncludes a new O-ring and spring clamps for a complete seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e803529A04\u003c\/td\u003e\n \u003ctd\u003eSuperseded by 803529T04.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e803529T04\u003c\/td\u003e\n \u003ctd\u003ePrimary replacement number.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n \u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n \u003ctd\u003eInterchangeable with 3H8040001 and 3H8040001M.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eJohnson \/ Evinrude\u003c\/td\u003e\n \u003ctd\u003e5041064\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor Mercury\/Mariner:\u003c\/strong\u003e This pump fits a wide range of 4-stroke models from 9.9 to 30 HP built from 2005 to present. As model-specific data is broad, please verify the part number 803529T04 matches your service manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor Tohatsu\/Nissan:\u003c\/strong\u003e Extensive compatibility with Tohatsu and Nissan 4-stroke engines from 9.9 to 30 HP. Check your specific model and year against the list below to ensure a correct fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor Johnson\/Evinrude:\u003c\/strong\u003e Compatibility is limited to certain 15 HP 2-stroke models. It is critical to confirm that OEM part number 5041064 is the correct reference for your engine before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYears\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious 4-Stroke\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–Present\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003eReplaces 803529A04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious 4-Stroke\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–Present\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003eReplaces 803529A04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious 4-Stroke\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–Present\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003eReplaces 803529A04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious 4-Stroke\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–Present\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003eReplaces 803529A04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious 4-Stroke\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–Present\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003eReplaces 803529A04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.9E EFI\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2017–2018\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.9B, MFS9.9B2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2004\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS15E EFI\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2017–2018\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS15B, MFS15B2, MFS15C\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2012\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS20E EFI\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2017–2018\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS20C, MFS20D\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2016\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS25A\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2005\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS25B\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel Pump, Fuel Rail \u0026amp; Vapor Separator\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS25C\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2015–2018\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel System\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS30A\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2005\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS30B\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2014\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel Pump, Fuel Rail \u0026amp; Vapor Separator\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS30C\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2015–2018\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel System\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF9.9B, NSF9.9B2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2004\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF15B, NSF15B2, NSF15C\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2013\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF20C\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF25A\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2005\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF25B\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel Pump, Fuel Rail \u0026amp; Vapor Separator\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF30A\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2005\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eInlet Manifold, Fuel Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF30B\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2014\u003c\/td\u003e\n\u003ctd\u003e3H8-04000-1\u003c\/td\u003e\n\u003ctd\u003eFuel Pump, Fuel Rail \u0026amp; Vapor Separator\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003eVarious Models\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1993–2007\u003c\/td\u003e\n\u003ctd\u003e5041064\u003c\/td\u003e\n\u003ctd\u003eLimited compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003eVarious Models\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1993–2007\u003c\/td\u003e\n\u003ctd\u003e5041064\u003c\/td\u003e\n\u003ctd\u003eLimited compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMechanical Fuel Pump\u003c\/dd\u003e\n \u003cdt\u003eDrive System\u003c\/dt\u003e\n\u003cdd\u003ePulse-Driven\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eTwo-bolt mounting system\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eConnection Type\u003c\/dt\u003e\n\u003cdd\u003eHose barb fittings\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eCorrosion-resistant metal and plastic\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\/Silver\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eApproximately 89 × 76 × 38 mm (3.5 × 3.0 × 1.5 inches)\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003eApproximately 0.07 kg (0.15 lbs)\u003c\/dd\u003e\n \u003cdt\u003eWorking Pressure\u003c\/dt\u003e\n\u003cdd\u003eMeets OEM specifications\u003c\/dd\u003e\n \u003cdt\u003eOperating Temperature\u003c\/dt\u003e\n\u003cdd\u003e-20 to 80°C (-4 to 176°F)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 x Fuel Pump Assembly\u003c\/li\u003e\n \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e1 x O-Ring\u003c\/span\u003e\u003c\/li\u003e\n \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e2 x Metal Spring Clamps\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eAlways work in a well-ventilated area and disconnect the negative battery terminal before starting.\u003c\/li\u003e\n \u003cli\u003eRelieve fuel system pressure according to your service manual and place rags to catch any fuel spills.\u003c\/li\u003e\n \u003cli\u003eCarefully disconnect the fuel inlet, outlet, and pulse hoses from the old pump.\u003c\/li\u003e\n \u003cli\u003eUnbolt and remove the old pump assembly and its gasket or O-ring.\u003c\/li\u003e\n \u003cli\u003eThoroughly clean the mounting surface on the engine block to ensure a proper seal.\u003c\/li\u003e\n \u003cli\u003ePosition the new pump with its O-ring, then install and tighten the mounting bolts to the specified torque.\u003c\/li\u003e\n \u003cli\u003eSecurely reconnect all hoses using the new spring clamps provided.\u003c\/li\u003e\n \u003cli\u003eReconnect the battery, prime the fuel system as needed, and start the engine. Carefully inspect the pump and all connections for any leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are common signs of a failing fuel pump?\u003c\/summary\u003e\n \u003cp\u003eSymptoms include engine hesitation or stumbling, especially at high speeds, difficulty starting, rough idling, or a complete failure to start. A visual inspection may also reveal fuel leaking from the pump housing or connected lines.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow can I be sure this fits my Mercury\/Mariner engine?\u003c\/summary\u003e\n \u003cp\u003eBecause Mercury uses this pump across many models, the best way to confirm fitment is by matching your old part number to 803529T04. While it fits most 9.9–30 HP 4-stroke models from 2005-present, checking the part number is the only way to guarantee compatibility.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhy is Johnson\/Evinrude compatibility listed as \"limited\"?\u003c\/summary\u003e\n \u003cp\u003eThis pump only fits specific Johnson\/Evinrude 15 HP 2-stroke models that use OEM part number 5041064. Its primary design is for 4-stroke applications, so you must confirm this exact part number for a 2-stroke engine before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eIs this fuel pump compatible with ethanol-blended fuels?\u003c\/summary\u003e\n \u003cp\u003eYes, this aftermarket pump is built with materials designed to handle standard ethanol-blended gasoline (up to E10). Using fuels with higher ethanol concentrations is not recommended and may reduce the service life of the pump and other fuel system components.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat is a \"pulse-driven\" pump?\u003c\/summary\u003e\n \u003cp\u003eA pulse-driven mechanical pump uses the changing pressure within the engine's crankcase to operate. As the piston moves, the pressure fluctuation moves a diaphragm inside the pump, which draws fuel from the tank and sends it to the carburetor without needing any electrical power.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717907878203,"sku":"QM-FP24095","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/QM-FP24095.png?v=1762938134"},{"product_id":"water-pump-impeller-fits-tohatsu-nissan-9-9-20-hp-mercury-8-20-hp-replaces-334-65021-0-47-803748","title":"Water Pump Impeller – Fits Tohatsu\/Nissan 9.9–20 HP \u0026 Mercury 8–20 HP (Replaces 334-65021-0, 47-803748)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller – Fits Tohatsu\/Nissan 9.9–20 HP \u0026amp; Mercury 8–20 HP (Replaces 334-65021-0, 47-803748)\u003c\/strong\u003e is a critical component for maintaining your engine's cooling system. It is designed for Tohatsu\/Nissan 9.9-20 HP (2-Stroke \u0026amp; 4-Stroke), Mercury\/Mariner 8-20 HP (4-Stroke), and is cross-compatible with select Honda 7.5-10 HP outboard motors.\u003c\/p\u003e\n\u003cp\u003eThis part provides a direct interchange for OEM part numbers Tohatsu 334-65021-0, Mercury 47-803748\/8M0214944, Honda 19210-935-003, Evinrude 5040046, and Sierra 18-8921.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls as a direct OEM-equivalent replacement.\u003c\/li\u003e\n\u003cli\u003eFeatures a key-driven shaft mount for secure fitting.\u003c\/li\u003e\n\u003cli\u003eMade from salt water resistant rubber for durability in marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n \u003ctd\u003e334-65021-0 \/ 334650210 \/ 334650210M\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e47-803748 \/ 8M0214944\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eHonda\u003c\/td\u003e\n \u003ctd\u003e19210-935-003\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEvinrude\u003c\/td\u003e\n \u003ctd\u003e5040046\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSierra\u003c\/td\u003e\n \u003ctd\u003e18-8921\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eFits a range of Tohatsu \u0026amp; Nissan 2-stroke and 4-stroke outboard models from 9.9 HP to 20 HP.\u003c\/p\u003e\n\u003cp\u003eDesigned for Mercury \u0026amp; Mariner 4-stroke outboards from 8 HP to 20 HP, including Bigfoot gearcase models.\u003c\/p\u003e\n\u003cp\u003eCross-compatible with specific Honda and Evinrude models as listed.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS9.9\/15\/18\/20\u003c\/td\u003e\n \u003ctd\u003e9.9-20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e334-65021-0\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNissan\u003c\/td\u003e\n \u003ctd\u003eNSF9.9\/15\/18\/20\u003c\/td\u003e\n \u003ctd\u003e9.9-20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e334-65021-0\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eM9.9\/15\/18\/20\u003c\/td\u003e\n \u003ctd\u003e9.9-20\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003e334-65021-0\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNissan\u003c\/td\u003e\n \u003ctd\u003eNS9.9\/15\/18\/20\u003c\/td\u003e\n \u003ctd\u003e9.9-20\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003e334-65021-0\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eF8\/F9.9\/F10\/F15\/F18\/F20\u003c\/td\u003e\n \u003ctd\u003e8-20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e47-803748\u003c\/td\u003e\n \u003ctd\u003eAlso fits Bigfoot gearcase models\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury Marine\u003c\/td\u003e\n \u003ctd\u003e8M0135803\u003c\/td\u003e\n \u003ctd\u003e9.9-20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e8M0214944\u003c\/td\u003e\n \u003ctd\u003eService kit part number\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eHonda\u003c\/td\u003e\n \u003ctd\u003eBF7.5\/BF10\u003c\/td\u003e\n \u003ctd\u003e7.5-10\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e19210-935-003\u003c\/td\u003e\n \u003ctd\u003eCross-compatible\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEvinrude\u003c\/td\u003e\n \u003ctd\u003eE15\u003c\/td\u003e\n \u003ctd\u003e15\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e5040046\u003c\/td\u003e\n \u003ctd\u003eCross-compatible\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM Replacement\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eKey-driven Shaft Mount\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eHigh-quality Rubber\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eShaft Mount with Key\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eSalt water resistant\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 x Water Pump Impeller (334-65021-0\/47-803748)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eDisconnect the spark plug wires and battery cables for safety.\u003c\/li\u003e\n \u003cli\u003ePlace a drain pan under the gearcase and remove the drain plug to empty the gear oil.\u003c\/li\u003e\n \u003cli\u003eUnbolt and carefully lower the gearcase (lower unit) from the outboard's main housing.\u003c\/li\u003e\n \u003cli\u003eLocate the water pump housing on top of the gearcase and remove its retaining bolts.\u003c\/li\u003e\n \u003cli\u003eSlide the housing up and off the driveshaft to expose the old impeller. Note the orientation of the vanes.\u003c\/li\u003e\n \u003cli\u003eRemove the old impeller and key. Clean any debris or corrosion from the housing and wear plate.\u003c\/li\u003e\n \u003cli\u003eInstall the new key and slide the new impeller onto the driveshaft. Rotate the shaft clockwise while pushing down to seat the vanes correctly.\u003c\/li\u003e\n \u003cli\u003eApply a light coat of marine grease to the inside of the housing and reinstall it.\u003c\/li\u003e\n \u003cli\u003eRe-bolt the water pump housing to the specified torque.\u003c\/li\u003e\n \u003cli\u003eReattach the gearcase to the outboard, ensuring the driveshaft, shift shaft, and water tube align correctly.\u003c\/li\u003e\n \u003cli\u003eRefill the gearcase with new lubricant and start the engine in water to verify proper water flow from the tell-tale outlet.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow do I know when to replace my water pump impeller?\u003c\/summary\u003e\n \u003cp\u003eSigns of a failing impeller include a weak or intermittent water stream from the \"tell-tale\" outlet, engine overheating alarms, or a noticeable drop in cooling performance. It's recommended to replace it as part of regular annual service, or every 100-200 hours of use, whichever comes first.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are the symptoms of complete impeller failure?\u003c\/summary\u003e\n \u003cp\u003eComplete failure will result in a total loss of cooling water flow, leading to rapid engine overheating, which can cause severe and permanent damage. You will likely get an overheat warning on your console or engine management system.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eIs this impeller compatible with both 2-stroke and 4-stroke engines?\u003c\/summary\u003e\n \u003cp\u003eYes, as specified in the compatibility table, this impeller fits a range of both 2-stroke and 4-stroke models from Tohatsu and Nissan, and 4-stroke models from Mercury\/Mariner and Honda.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eCan I install this myself?\u003c\/summary\u003e\n \u003cp\u003eWhile DIY installation is possible for those with mechanical experience, it involves removing the lower unit of your outboard. We recommend professional installation to ensure correct seating of the impeller, proper alignment of shafts, and to prevent damage to the engine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eMy engine model is listed, but the year is not. Will it fit?\u003c\/summary\u003e\n \u003cp\u003eThis part is listed by engine model and horsepower range. While specific year ranges are not provided, it is designed to fit the models listed. Always compare the photos and part numbers to your existing impeller to be certain. When in doubt, consult a professional mechanic.\u003c\/p\u003e´\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat is the difference between this and an OEM impeller?\u003c\/summary\u003e\n \u003cp\u003eThis is an aftermarket replacement part, not an original equipment manufacturer (OEM) component. It is engineered to meet or exceed OEM specifications for fit, form, and function, using high-quality, salt-water resistant rubber for reliable performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow fast is shipping, and what is the cost?\u003c\/summary\u003e\n \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options will appear at checkout where available for your location.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n \u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter any issues, please contact our support team with your order number. Returns are accepted within our standard return window for items that are unused and in their original packaging.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images and specifications against your original part before purchase. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717907976507,"sku":"24KM103-QM","price":18.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM103-QM.png?v=1762938137"},{"product_id":"hydrofoil-stabilizer-fins-fits-outboard-motors-up-to-50hp-4-50-hp-replaces-five-oceans-fo-4470-se-sport-300","title":"Hydrofoil Stabilizer Fins – Fits Outboard Motors Up to 50HP (4-50 HP) (Replaces Five Oceans FO-4470, SE Sport 300)","description":"\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n table.ss-table th {\n white-space:nowrap;\n word-break:normal;\n letter-spacing:normal;\n font-weight:600;\n background:#f8fafc;\n }\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThese \u003cstrong\u003eHydrofoil Stabilizer Fins\u003c\/strong\u003e are designed to improve performance and stability for outboard motors ranging from 4 to 50 HP. Suitable for a wide variety of brands including Mercury, Yamaha, Evinrude, and Honda, they help boats get on plane faster and stay on plane at lower speeds. The two-piece design allows each foil to flex independently, absorbing shock and providing a smoother ride.\u003c\/p\u003e\n \u003cp\u003eThis part serves as a direct replacement for Five Oceans FO-4470 and can be used in similar applications as the SE Sport 300.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eInstalls via a simple bolt-on process directly to the anti-ventilation plate (drilling required).\u003c\/li\u003e\n \u003cli\u003eConstructed from high-strength, UV-resistant black plastic for durability in marine environments.\u003c\/li\u003e\n \u003cli\u003eKit includes all necessary stainless steel mounting hardware.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eFive Oceans\u003c\/td\u003e\n \u003ctd\u003eFO-4470\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSE Sport\u003c\/td\u003e\n \u003ctd\u003e300\u003c\/td\u003e\n \u003ctd\u003eFor similar applications\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMariner\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eJohnson\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEvinrude\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eHonda\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSuzuki\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e4-50 HP\u003c\/td\u003e\n \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n \u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eOutboard Engine Hydrofoil Stabilizer Fins\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBolt-on (4 mounting holes)\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eDirect mount to anti-ventilation plate (cavitation plate)\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eHigh-strength black plastic, UV-resistant\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eApproximately 180mm × 180mm per fin (7.1\" × 7.1\")\u003c\/dd\u003e\n \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003e2-piece design (left and right wings)\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1-year (Five Oceans model)\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eMolded in two unbreakable pieces, each foil designed to flex independently to absorb shock\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e1 x Hydrofoil Set (Left and Right Fin)\u003c\/li\u003e\n \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Stainless Steel Screws\u003c\/span\u003e\u003c\/li\u003e\n \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Washers\u003c\/span\u003e\u003c\/li\u003e\n \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Pressure Nuts\u003c\/span\u003e\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eCenter the hydrofoil pieces on the anti-ventilation (cavitation) plate of your outboard motor.\u003c\/li\u003e\n \u003cli\u003eMark the positions for the four mounting holes. Ensure they are clear of any underlying structures.\u003c\/li\u003e\n \u003cli\u003eCarefully drill the four marked holes through the plate using an appropriately sized drill bit.\u003c\/li\u003e\n \u003cli\u003ePlace the fins onto the plate, aligning the holes.\u003c\/li\u003e\n \u003cli\u003eInsert the stainless steel screws with washers from the top and secure them from the bottom using the pressure nuts.\u003c\/li\u003e\n \u003cli\u003eTighten all four nuts evenly and securely. Do not overtighten. Check for firmness before operating the vessel.\u003c\/li\u003e\n \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWill these fins fit my specific outboard motor?\u003c\/summary\u003e\n \u003cp\u003eThese hydrofoils are designed for a universal fit on most outboard motors from 4 to 50 HP. Installation requires drilling into the anti-ventilation plate. Always measure your plate to ensure the 180mm x 180mm fin dimensions will fit comfortably.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat performance benefits can I expect?\u003c\/summary\u003e\n \u003cp\u003eHydrofoils can help reduce the time it takes to get on plane, maintain plane at lower speeds, and improve stability and tracking. Actual performance improvements vary depending on boat hull design, weight distribution, and engine mounting height.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow do these compare to the SE Sport 300?\u003c\/summary\u003e\n \u003cp\u003eThese fins offer a similar function and universal fit for small-to-mid-size outboards. They are made from high-strength, UV-resistant plastic and feature a two-piece design that allows each wing to flex independently to absorb shock, similar to other popular models.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow often should I check the mounting hardware?\u003c\/summary\u003e\n \u003cp\u003eIt is good practice to inspect the tightness of all mounting hardware (screws, nuts, washers) as part of your regular pre-launch checklist and at least once per season to ensure continued safe operation.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717908140347,"sku":"19HS001R1","price":25.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/19HS001R1.png?v=1762938148"},{"product_id":"fuel-pump-assembly-fits-mercury-tohatsu-mariner-4-30hp-4-stroke-outboards-replaces-803529t04-3h6-04000-7","title":"Fuel Pump Assembly – Fits Mercury\/Tohatsu\/Mariner 4-30HP 4-Stroke Outboards (Replaces 803529T04, 3H6-04000-7)","description":"\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n table.ss-table th {\n white-space:nowrap;\n word-break:normal;\n letter-spacing:normal;\n font-weight:600;\n background:#f8fafc;\n }\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis engine-mounted \u003cstrong\u003eFuel Pump Assembly – Fits Mercury\/Tohatsu\/Mariner 4-30HP 4-Stroke Outboards (Replaces 803529T04, 3H6-04000-7)\u003c\/strong\u003e is designed for reliable performance in a range of Mercury, Mariner, Tohatsu, and Nissan 4-Stroke outboards from 4HP to 30HP, covering model years from 2002 to 2016 and up.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for multiple OEM and aftermarket part numbers, including Mercury 803529A04\/803529T04, Tohatsu 3H6-04000-7, and Sierra 18-8865. See the Part Number Matrix for a full list of equivalents.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls directly to the engine block.\u003c\/li\u003e\n\u003cli\u003eConstructed from durable black plastic for corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eDesigned for use with standard gasoline fuel systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529A04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e3H6040000M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e3H6040001M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e3H6040002M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e3H6040003M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e3H6040004M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-8865\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e40670\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMercury\/Mariner Fitment:\u003c\/b\u003e This fuel pump is compatible with various 4-stroke models from 5HP to 30HP, including Carb, EFI, and SEAPRO series manufactured from 2003 onwards.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTohatsu\/Nissan Fitment:\u003c\/b\u003e This part fits a wide range of 4-stroke models from 4HP to 9.8HP, covering years from 2002 through 2014.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYears\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e10 Carb (2CYL)\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R575531 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e15 Carb (2CYL)\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R235949 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e15 Carb (2CYL) JCI\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R558208 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e15 SEAPRO\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R123565 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e20 Carb (2CYL)\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R235168 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e25 EFI (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R106999 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e25 Jet EFI (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R165086 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e30 EFI (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003 \u0026amp; Up (0R106999 \u0026amp; Up)\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2016\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2016\u003c\/td\u003e\n\u003ctd\u003e803529T04\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4A2\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4B\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5A2\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5C\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6A2\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6B\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6C\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS8A\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS8A2\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS8A3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.8A\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.8A2\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.8A3\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4A2\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4B\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF5A2\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF5C\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF6A2\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF6B\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF6C\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF8A2\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF8A3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF9.8A2\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF9.8A3\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMechanical Fuel Pump Assembly\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eEngine-mounted\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eHose Barb\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003ePlastic\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eHeight\u003c\/dt\u003e\n\u003cdd\u003e68.4mm (2.69in)\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.14kg (4.8oz)\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003eManufacturer warranty\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eTop Shaft to Plastic Base: 33.3mm (1.31in)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Fuel Pump Assembly (803529T04\/3H6-04000-7)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the battery and relieve fuel system pressure according to manufacturer guidelines.\u003c\/li\u003e\n\u003cli\u003ePlace absorbent rags around the old pump to catch any fuel spillage.\u003c\/li\u003e\n\u003cli\u003eCarefully disconnect the fuel inlet and outlet lines, noting their orientation.\u003c\/li\u003e\n\u003cli\u003eRemove the mounting bolts securing the old fuel pump to the engine.\u003c\/li\u003e\n\u003cli\u003eClean the mounting surface to ensure a proper seal with the new pump.\u003c\/li\u003e\n\u003cli\u003eInstall the new fuel pump assembly, ensuring it is correctly seated. Hand-tighten mounting bolts evenly before torquing to spec.\u003c\/li\u003e\n\u003cli\u003eReconnect the fuel lines to the correct barbs on the new pump and secure with clamps.\u003c\/li\u003e\n\u003cli\u003eReconnect the battery. Prime the fuel system as per your engine's manual and check thoroughly for leaks before starting the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow do I know if my fuel pump is failing?\u003c\/summary\u003e\n \u003cp\u003eCommon signs of a failing mechanical fuel pump include engine sputtering at high speeds, loss of power, difficulty starting, or surging. You may also notice fuel leaking from the pump housing itself. A pressure test can confirm if the pump is delivering fuel within the specified range for your engine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat is the recommended replacement interval?\u003c\/summary\u003e\n \u003cp\u003eThere is no fixed replacement interval for this type of mechanical fuel pump. It should be replaced if it fails or shows signs of wear, such as cracks in the housing or leaking seals. Regular inspection during scheduled maintenance is recommended.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWill this pump fit my specific engine model if it's not listed?\u003c\/summary\u003e\n \u003cp\u003eIf your engine model, year, and serial number range are not explicitly listed in our compatibility table, we cannot guarantee a fit. Please check the part numbers and visual details against your old pump before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eDoes this assembly include new gaskets or O-rings?\u003c\/summary\u003e\n \u003cp\u003eThis package contains the fuel pump assembly as pictured. Gaskets or mounting hardware are not specified as included from our OEM sources. We recommend purchasing new gaskets separately to ensure a leak-free installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717908566331,"sku":"17FP001R2","price":67.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17FP001R2.png?v=1762938158"},{"product_id":"fuel-connector-cap-fits-mercury-4-30-hp-replaces-mercury-878311-suzuki-65727-91jl0-tohatsu-3h6-70262-0","title":"Fuel Connector Cap – Fits Mercury 4–30 HP (Replaces Mercury 878311, Suzuki 65727-91JL0, Tohatsu 3H6-70262-0)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eFuel Connector Cap\u003c\/strong\u003e is designed to seal the fuel connection on integral fuel tanks for Mercury outboard engines. It is compatible with various Mercury models from 4 HP to 30 HP, primarily 4-stroke engines.\u003c\/p\u003e\n\u003cp\u003eThis part is a direct replacement for Mercury 878311, Suzuki 65727-91JL0, Tohatsu 3H6-70262-0, and QuickSilver 878311.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eEasy screw-on installation.\u003c\/li\u003e\n \u003cli\u003eDesigned for gasoline-fueled integral (built-in) fuel tanks.\u003c\/li\u003e\n \u003cli\u003ePackage includes one cap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e878311\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eQuickSilver\u003c\/td\u003e\n \u003ctd\u003e878311\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSuzuki\u003c\/td\u003e\n \u003ctd\u003e65727-91JL0\u003c\/td\u003e\n \u003ctd\u003eCross reference to Mercury 878311\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e3H6-70262-0\u003c\/td\u003e\n \u003ctd\u003eCross reference to Mercury 878311\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis cap fits a wide range of Mercury 4-stroke outboards with integral fuel tanks. Please verify your HP rating against the compatible models listed.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYears\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMultiple\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e878311\u003c\/td\u003e\n\u003ctd\u003eFor integral fuel tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eFuel Connector Cap\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eScrew-on\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eIntegral fuel tank inlet\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eRubber\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eOther Attributes\u003c\/dt\u003e\n\u003cdd\u003eFor use with integral (built-in) fuel tanks\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Cap (Replaces 878311)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eEnsure the engine is off and in a well-ventilated area.\u003c\/li\u003e\n \u003cli\u003eCarefully unscrew the old fuel cap to release any built-up pressure.\u003c\/li\u003e\n \u003cli\u003eRemove the old cap and inspect the sealing surface on the tank for dirt or damage.\u003c\/li\u003e\n \u003cli\u003eWipe the tank's inlet threads and sealing surface clean with a lint-free cloth.\u003c\/li\u003e\n \u003cli\u003ePosition the new cap and screw it on by hand until it is snug. Do not overtighten.\u003c\/li\u003e\n \u003cli\u003eAfter installation, check for any signs of fuel leakage around the cap before operating the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this cap fit all Mercury 4–30 HP models?\u003c\/summary\u003e\u003cp\u003eThis cap is designed for Mercury 4-stroke outboards from 4 HP to 30 HP that use an integral (built-in) fuel tank. It may not fit models with connections for external fuel tanks. Always verify your part number (878311) and check that your setup uses an integral tank.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs that my fuel connector cap needs to be replaced?\u003c\/summary\u003e\u003cp\u003eCommon signs of a failing cap include visible cracks or brittleness in the rubber, a loose or improper fit, a persistent smell of fuel around the engine, or fuel leaking from the cap area. A worn-out seal can compromise safety and fuel efficiency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a genuine OEM part?\u003c\/summary\u003e\u003cp\u003eNo, this is an aftermarket part designed to meet or exceed OEM specifications. It provides a reliable, cost-effective alternative to the original Mercury 878311, Suzuki 65727-91JL0, and Tohatsu 3H6-70262-0 parts.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this cap for a different fuel type, like diesel?\u003c\/summary\u003e\u003cp\u003eThis cap is specifically designed for use with gasoline. Using it with other fuel types is not recommended, as the material may not be compatible and could degrade, leading to leaks or failure.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I ensure a proper seal during installation?\u003c\/summary\u003e\u003cp\u003eInstall the cap by hand-tightening it until it feels snug. Overtightening can damage the threads or the seal. After tightening, visually inspect for any gaps and check for fuel odor to ensure a proper seal has been made.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eMy engine model isn't listed, but the part number matches. Will it fit?\u003c\/summary\u003e\u003cp\u003eIf your old part has the number 878311, this cap should serve as a direct replacement. Our compatibility tables are representative but may not be exhaustive. The part number match is the most reliable indicator of fitment.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717908599099,"sku":"CP-F430-24CP","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/CP-F430-24CP.png?v=1762938159"},{"product_id":"water-pump-impeller-repair-kit-fits-mercury-tohatsu-9-9-20-hp-4-stroke-efi-replaces-8m0137849-8m0135821","title":"Water Pump Impeller Repair Kit – Fits Mercury\/Tohatsu 9.9-20 HP 4-Stroke EFI (Replaces 8M0137849, 8M0135821)","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller Repair Kit – Fits Mercury\/Tohatsu 9.9-20 HP 4-Stroke EFI (Replaces 8M0137849, 8M0135821)\u003c\/strong\u003e is designed for Mercury\/Mariner 9.9, 10, 15, and 20 HP 4-Stroke EFI outboards (2020 and newer, S\/N 0R833820+) and compatible Tohatsu\/Nissan 15-20 HP (MFS) 4-Stroke models. It provides all necessary components to restore your engine's cooling system performance.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct interchange for Mercury part numbers 8M0137849, 8M0135821, 98-8M0135821, 8M0134484, 46-8M0122064, and Tohatsu 3RS-87322-1.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for direct replacement of OEM parts, ensuring a precise fit.\u003c\/li\u003e\n\u003cli\u003eConstructed with a marine-grade nylon housing and a durable CR-Neoprene impeller for longevity.\u003c\/li\u003e\n\u003cli\u003eIncludes a complete set of gaskets, seals, and hardware for a comprehensive overhaul.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8M0137849\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8M0135821\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e98-8M0135821\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8M0134484\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e46-8M0122064\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eFor Mercury and Mariner outboards, this kit fits specific 4-stroke EFI models from 2020 onward with serial number 0R833820 and up. Ensure your S\/N matches before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Mercury\/Mariner Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYears\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e9.9 HP EFI\u003c\/td\u003e\n \u003ctd\u003e9.9\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2020+\u003c\/td\u003e\n \u003ctd\u003e8M0135821\/8M0137849\u003c\/td\u003e\n \u003ctd\u003eS\/N 0R833820 and above\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e10 HP EFI\u003c\/td\u003e\n \u003ctd\u003e10\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2020+\u003c\/td\u003e\n \u003ctd\u003e8M0135821\/8M0137849\u003c\/td\u003e\n \u003ctd\u003eS\/N 0R833820 and above\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e15 HP EFI\u003c\/td\u003e\n \u003ctd\u003e15\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2020+\u003c\/td\u003e\n \u003ctd\u003e8M0135821\/8M0137849\u003c\/td\u003e\n \u003ctd\u003eS\/N 0R833820 and above\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e20 HP EFI\u003c\/td\u003e\n \u003ctd\u003e20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2020+\u003c\/td\u003e\n \u003ctd\u003e8M0135821\/8M0137849\u003c\/td\u003e\n \u003ctd\u003eS\/N 0R833820 and above\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eProKicker\u003c\/td\u003e\n \u003ctd\u003e9.9-20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2020+\u003c\/td\u003e\n \u003ctd\u003e8M0135821\/8M0137849\u003c\/td\u003e\n \u003ctd\u003e333cc, 2-cylinder variants\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eSeaPro\u003c\/td\u003e\n \u003ctd\u003e9.9-20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2020+\u003c\/td\u003e\n \u003ctd\u003e8M0135821\/8M0137849\u003c\/td\u003e\n \u003ctd\u003e333cc, 2-cylinder variants\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eFor Tohatsu and Nissan, this kit is listed as a cross-reference. Verify your engine uses a compatible cooling system design before purchasing.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Nissan\/Tohatsu Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYears\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS\u003c\/td\u003e\n \u003ctd\u003e15\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n \u003ctd\u003eCross-reference only\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS\u003c\/td\u003e\n \u003ctd\u003e20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n \u003ctd\u003eCross-reference only\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNissan\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e15-20\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n \u003ctd\u003eCross-reference only\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller Repair Kit\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement for OEM parts\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine Grade Nylon Water Pump Housing with SS316 Wear Plate \u0026amp; Liner\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e12 months (aftermarket)\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eCR-Neoprene Water Pump Impeller and Seals\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 x Water Pump Impeller (334-65021 \/ 3LD-65021)\u003c\/li\u003e\n \u003cli\u003e1 x Housing\u003c\/li\u003e\n \u003cli\u003e1 x Insert Cup\u003c\/li\u003e\n \u003cli\u003e1 x Wear Plate\u003c\/li\u003e\n \u003cli\u003e2 x Gaskets\u003c\/li\u003e\n \u003cli\u003e1 x Key\u003c\/li\u003e\n \u003cli\u003e1 x Seal Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eDisconnect the negative battery cable for safety.\u003c\/li\u003e\n \u003cli\u003eShift the outboard into the neutral gear position.\u003c\/li\u003e\n \u003cli\u003eRemove the lower unit mounting bolts and carefully lower the gearcase assembly.\u003c\/li\u003e\n \u003cli\u003eUnbolt and remove the old water pump housing, impeller, and wear plate. Note the orientation of the old parts.\u003c\/li\u003e\n \u003cli\u003eThoroughly clean all mating surfaces, removing any old gasket material or corrosion.\u003c\/li\u003e\n \u003cli\u003eInstall the new key, impeller (turn driveshaft clockwise to bend vanes correctly), wear plate, and gaskets.\u003c\/li\u003e\n \u003cli\u003eFit the new housing over the impeller assembly and secure it with the bolts, tightening to the manufacturer's specified torque.\u003c\/li\u003e\n \u003cli\u003eApply a light coat of marine grease to the driveshaft splines.\u003c\/li\u003e\n \u003cli\u003eCarefully reinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube align correctly.\u003c\/li\u003e\n \u003cli\u003eSecure the lower unit with its mounting bolts.\u003c\/li\u003e\n \u003cli\u003eReconnect the battery, start the engine in water, and immediately check for a steady stream from the telltale outlet.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this kit fits my Mercury EFI outboard?\u003c\/summary\u003e\u003cp\u003eCheck your engine's serial number. This kit is specifically for models from 2020 and newer with a serial number of 0R833820 and up. If your serial number is lower or your engine is an older model, this kit will not fit.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon signs include a weak or no water stream from the \"telltale\" outlet, engine overheating alerts or alarms, and a dry, cracked, or brittle appearance of the old impeller vanes upon inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the water pump impeller be replaced?\u003c\/summary\u003e\u003cp\u003eFor optimal performance and to prevent engine damage, it is recommended to inspect the impeller annually and replace it every 1-2 years or every 100-200 hours of use, whichever comes first. Service intervals should be shorter in saltwater or silty conditions.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this kit compatible with older Mercury 4-stroke models?\u003c\/summary\u003e\u003cp\u003eNo, this kit is only for the newer EFI models (2020+) with the 333cc, 2-cylinder powerhead and the corresponding cooling system design. It is not interchangeable with kits for older carbureted or different displacement models.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between this housing and the OEM version?\u003c\/summary\u003e\u003cp\u003eThis aftermarket kit features a durable marine-grade nylon housing with an SS316 stainless steel liner and wear plate. It is engineered to meet or exceed original equipment specifications for performance, corrosion resistance, and longevity.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717908926779,"sku":"24KM022-QM","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM022-QM.png?v=1762938168"},{"product_id":"water-pump-kit-with-housing-fits-mercury-mariner-tohatsu-9-9-20-hp-efi-replaces-8m0137849-8m0135821","title":"Water Pump Kit with Housing – Fits Mercury\/Mariner\/Tohatsu 9.9-20 HP EFI (Replaces 8M0137849, 8M0135821)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis complete \u003cstrong\u003eWater Pump Kit with Housing – Fits Mercury\/Mariner\/Tohatsu 9.9-20 HP EFI (Replaces 8M0137849, 8M0135821)\u003c\/strong\u003e provides everything needed for a full service of your lower unit's cooling system. It is designed for Mercury\/Mariner 9.9–20 HP 4-Stroke EFI outboards (2013 and newer) and Tohatsu\/Nissan MFS15E\/MFS20E 4-Stroke models.\u003c\/p\u003e\n\u003cp\u003eThis kit is a direct replacement for Mercury part numbers 8M0137849, 98-8M0135821, 8M0134484, 46-8M0122064 and Tohatsu\/Nissan numbers 3RS-87322-1 and 3RS-87322.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eInstalls in the lower unit to restore cooling performance.\u003c\/li\u003e\n \u003cli\u003eIncludes the housing, impeller, wear plate, and all necessary gaskets and seals.\u003c\/li\u003e\n \u003cli\u003eBuilt with marine-grade neoprene, nylon, and stainless steel for durability in saltwater and freshwater environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8M0137849\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e98-8M0135821\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8M0134484\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e46-8M0122064\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n \u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n \u003ctd\u003e3RS-87322\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eFor Mercury\/Mariner models, this kit fits 9.9–20 HP 4-Stroke EFI outboards made in 2013 and later, with serial numbers 1R00814+ or 0R833820 and newer.\u003c\/p\u003e\n\u003cp\u003eFor Tohatsu\/Nissan models, it fits MFS15E and MFS20E 4-Stroke outboards from 2013 and newer.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYears\u003c\/th\u003e\n \u003cth\u003eOEM Part No.\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9 HP EFI\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003eSerial 1R00814+\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e10 HP EFI\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003eSerial 0R833820+\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e15 HP EFI\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003eSerial 0R833820+\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e20 HP EFI\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003eSerial 0R833820+\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9 HP EFI ProKicker\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e15 HP EFI ProKicker\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e20 HP EFI ProKicker\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9 HP EFI SeaPro\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e15 HP EFI SeaPro\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e20 HP EFI SeaPro\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e98-8M0135821\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS15E\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS20E\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eMFS15E\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n\u003ctd\u003eIdentical to Tohatsu models\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eMFS20E\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013+\u003c\/td\u003e\n\u003ctd\u003e3RS-87322-1\u003c\/td\u003e\n\u003ctd\u003eIdentical to Tohatsu models\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller Repair Kit with Housing\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eLower Unit\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine Grade Nylon\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eMarine Grade CR-Neoprene\u003c\/dd\u003e\n \u003cdt\u003eWear Plate Material\u003c\/dt\u003e\n\u003cdd\u003eMarine Grade SS316 (Stainless Steel)\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 Year (aftermarket)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 x \u003cspan style=\"color:#d0021b;\"\u003eImpeller (334-65021 \/ 3LD-65021)\u003c\/span\u003e\n\u003c\/li\u003e\n \u003cli\u003e1 x \u003cspan style=\"color:#d0021b;\"\u003eHousing\u003c\/span\u003e\n\u003c\/li\u003e\n \u003cli\u003e1 x Insert Cup\u003c\/li\u003e\n \u003cli\u003e1 x Wear Plate\u003c\/li\u003e\n \u003cli\u003e2 x Gaskets\u003c\/li\u003e\n \u003cli\u003e1 x Key\u003c\/li\u003e\n \u003cli\u003e1 x Seal Kit\u003c\/li\u003e\n \u003cli\u003e1 x Installation Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eDisconnect the battery and shift the outboard into neutral.\u003c\/li\u003e\n \u003cli\u003eRemove the lower unit (gearcase) from the engine driveshaft housing. Typically, this involves removing 4-6 bolts.\u003c\/li\u003e\n \u003cli\u003ePlace the lower unit on a workbench and remove the bolts securing the water pump housing.\u003c\/li\u003e\n \u003cli\u003eSlide the old housing, impeller, and wear plate off the driveshaft. Note the orientation of the old impeller vanes.\u003c\/li\u003e\n \u003cli\u003eClean the mounting surfaces and driveshaft, removing any old gasket material or sealant.\u003c\/li\u003e\n \u003cli\u003eSlide the new wear plate and gasket onto the driveshaft.\u003c\/li\u003e\n \u003cli\u003eInstall the new impeller key into the driveshaft and slide the new impeller on, rotating it clockwise to seat the vanes correctly.\u003c\/li\u003e\n \u003cli\u003eInstall the new insert cup and place the new housing over the impeller assembly.\u003c\/li\u003e\n \u003cli\u003eLightly grease the bolts and tighten the housing down evenly.\u003c\/li\u003e\n \u003cli\u003eReinstall the lower unit, ensuring the water tube and shift shaft align correctly, and torque bolts to manufacturer specs.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this kit fits my specific engine?\u003c\/summary\u003e\u003cp\u003eThe most reliable method is to check your engine's serial number or model year. This kit is for Mercury\/Mariner models 2013+ (with serials 1R00814+ or 0R833820+) and Tohatsu\/Nissan MFS15E\/MFS20E models 2013+. If your model or serial number is not listed, do not purchase.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water pump?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include the engine overheating at idle or low speeds, a weak or non-existent \"telltale\" water stream from the engine, or a melted\/deformed water pump housing upon inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should the water pump impeller be replaced?\u003c\/summary\u003e\u003cp\u003eAs a preventative maintenance item, most manufacturers recommend replacing the impeller every 100-200 operating hours or at least once every season, regardless of hours used. This kit includes the housing, which should be replaced if the old one is warped, cracked, or heavily scored.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs it necessary to replace the whole kit or just the impeller?\u003c\/summary\u003e\u003cp\u003eFor a complete and reliable repair, replacing the entire kit—including the housing, wear plate, and seals—is highly recommended. These components wear together, and a worn housing or plate can cause a new impeller to fail prematurely.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat’s the difference between OEM and this aftermarket kit?\u003c\/summary\u003e\u003cp\u003eThis is an aftermarket replacement part, not sourced from the original equipment manufacturer (OEM). It is engineered to meet or exceed OEM specifications for fit, material quality, and performance. All our parts are made in an ISO 9002 certified facility and undergo strict quality control.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow fast do you ship and what is the cost?\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly, with typical transit times of 5–15 days for most destinations. Standard shipping is free. If available for your region, expedited shipping options and costs will be presented at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eThis kit is covered by a 1-year warranty against manufacturing defects under normal operating conditions. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our official policy page or contact us for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cb\u003ePro-Grade Standards\u003c\/b\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cb\u003eFast Global Fulfillment\u003c\/b\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cb\u003eManufacturer-Direct Value\u003c\/b\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717908992315,"sku":"24KM022R1","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM022R1.png?v=1762938170"},{"product_id":"transom-saver-fits-single-ram-outboard-motors-mercury-yamaha-honda-suzuki-tohatsu-evinrude-johnson-replaces-m-y-wedge-m-yu123","title":"Transom Saver – Fits Single Ram Outboard Motors (Mercury, Yamaha, Honda, Suzuki, Tohatsu, Evinrude, Johnson) (Replaces M-Y Wedge M-YU123)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis wedge-style \u003cstrong\u003eTransom Saver – Fits Single Ram Outboard Motors (Mercury, Yamaha, Honda, Suzuki, Tohatsu, Evinrude, Johnson)\u003c\/strong\u003e is engineered to protect your boat's transom and your outboard motor’s hydraulic system during trailering. It installs on the single hydraulic ram of your trim\/tilt system, where it absorbs road shock and prevents damaging engine movement. It is designed for current single-ram systems on brands including Mercury, Yamaha, Honda, Suzuki, Evinrude, and Tohatsu.\u003c\/p\u003e\n\u003cp\u003eThis part serves as a direct replacement for interchange numbers M-Y Wedge M-YU123 and the JLM Marine Transom Saver Support.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eInstalls in seconds without drilling by clipping directly onto the tilt shaft.\u003c\/li\u003e\n \u003cli\u003eMade from high-density EPDM rubber to withstand compression and temperature extremes.\u003c\/li\u003e\n \u003cli\u003eIncludes one transom saver wedge with 10 inner notches for a secure grip on the ram.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eM-Y Wedge\u003c\/td\u003e\n \u003ctd\u003eM-YU123\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eJLM Marine\u003c\/td\u003e\n \u003ctd\u003eTransom Saver Support\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMercury:\u003c\/b\u003e Fits a wide range of current 4-Stroke and 2-Stroke models with single-ram trim\/tilt systems. Note that some high-horsepower Verado and Racing models require two units per engine.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eYamaha:\u003c\/b\u003e Compatible with most modern Portable, Midrange, F115LB, and VMAX-SHO models, as well as older 2-stroke engines equipped with a single trim ram.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHonda:\u003c\/b\u003e Designed for current BF Series outboards from 40 to 150 HP using a single-ram system.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSuzuki:\u003c\/b\u003e Fits current DF Series 4-Stroke models from 40 to 200 HP that utilize a single main trim ram.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eEvinrude\/Johnson:\u003c\/b\u003e Supports single-ram E-TEC and legacy models from both brands up to 130 HP.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTohatsu\/Nissan:\u003c\/b\u003e Covers a variety of current Tohatsu and older Nissan 4-Stroke outboards from 40 to 150 HP.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYears\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eFour-Stroke, SeaPro\u003c\/td\u003e\n \u003ctd\u003e40-175 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle main tilt shaft\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eProXS, SeaPro\u003c\/td\u003e\n \u003ctd\u003e40-175 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\/4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eVerado V6\/V8\u003c\/td\u003e\n \u003ctd\u003e250-400 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eRequires TWO units\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eRacing\u003c\/td\u003e\n \u003ctd\u003e300R-500R\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eRequires TWO units\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eRacing\u003c\/td\u003e\n \u003ctd\u003e60R\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle unit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003ePortable\/Midrange\u003c\/td\u003e\n \u003ctd\u003e9.9-90 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003eF115LB\u003c\/td\u003e\n \u003ctd\u003e115 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003eVMAX-SHO\u003c\/td\u003e\n \u003ctd\u003e90-115 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e30-115 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003eOlder models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eHonda\u003c\/td\u003e\n \u003ctd\u003eBF Series\u003c\/td\u003e\n \u003ctd\u003e40-150 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSuzuki\u003c\/td\u003e\n \u003ctd\u003eDF Series\u003c\/td\u003e\n \u003ctd\u003e40-200 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEvinrude\u003c\/td\u003e\n \u003ctd\u003eE-TEC H.O. \u0026amp; Inline\u003c\/td\u003e\n \u003ctd\u003e25-130 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003eUp to 2020\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eJohnson\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e25-130 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\/4-Stroke\u003c\/td\u003e\n \u003ctd\u003eOlder models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e40-150 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCurrent models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNissan\u003c\/td\u003e\n \u003ctd\u003eVarious\u003c\/td\u003e\n \u003ctd\u003e40-150 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eOlder models\u003c\/td\u003e\n \u003ctd\u003eSingle-ram trim\/tilt\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eTransom Saver \/ Motor Support\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eNo drilling; attaches directly to single ram tilt shaft\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eDirect mount to hydraulic ram\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eHigh-density EPDM rubber\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eApproximately 127 mm (5 inches) long\u003c\/dd\u003e\n \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eUniversal for single ram trim\/tilt systems\u003c\/dd\u003e\n \u003cdt\u003eWorking Pressure\u003c\/dt\u003e\n\u003cdd\u003eOver 907 kg (2,000 lbs) compression rating\u003c\/dd\u003e\n \u003cdt\u003eOperating Temperature\u003c\/dt\u003e\n\u003cdd\u003eRated for extreme hot\/cold temperatures\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 year against manufacturing defects (JLM Marine)\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eFeatures 10 inner notches to ensure secure connection to tilt shaft\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Transom Saver Wedge\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eTilt your outboard motor to its highest position to fully extend the trim\/tilt ram.\u003c\/li\u003e\n \u003cli\u003eSecurely clip the transom saver wedge onto the exposed single hydraulic ram shaft.\u003c\/li\u003e\n \u003cli\u003eSlowly lower the motor until it applies firm pressure to the wedge, creating a stable cushion.\u003c\/li\u003e\n \u003cli\u003eBefore trailering, always confirm the motor is snug against the wedge and cannot bounce or sway.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if this wedge fits my outboard motor?\u003c\/summary\u003e\u003cp\u003eThis transom saver is designed for outboard motors with a single main trim\/tilt ram. Check our compatibility table for specific brands, models, and HP ranges. If your motor has twin rams (like some high-HP Mercury Verado models), you will need two units. Always visually inspect your motor's hydraulic system to confirm it has one central ram before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this better than a traditional transom saver bar?\u003c\/summary\u003e\u003cp\u003eA wedge-style saver offers a different approach. It stabilizes the engine by cushioning the hydraulics, absorbing road shock directly at the ram. Traditional bars transfer this force to the trailer frame. Wedges are faster to install, require no drilling, and take up less storage space. The best choice depends on your boat, trailer configuration, and personal preference.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eMy Mercury Verado requires two units. How do I install them?\u003c\/summary\u003e\u003cp\u003eFor engines like the Mercury Verado V6\/V8 and some Racing models that have two hydraulic trim rams, you must use two transom saver wedges. Place one wedge on each of the two rams before lowering the engine. This ensures the load is distributed evenly, providing stable support during transit.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I inspect the transom saver?\u003c\/summary\u003e\u003cp\u003eInspect the wedge before each use. Look for any signs of cracking, splitting, or deformation in the rubber. Exposure to UV rays, fuel, or oil can degrade the material over time. Replace it immediately if you notice any damage that could compromise its ability to support the engine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing transom saver?\u003c\/summary\u003e\u003cp\u003eA failing wedge may show visible cracks or have a \"squashed\" appearance, indicating it has lost its compressive strength. During trailering, you might notice more engine bounce than usual. If the wedge no longer fits snugly on the ram or falls off easily, it's time for a replacement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I trim my motor up or down with the wedge installed?\u003c\/summary\u003e\u003cp\u003eNo. The wedge is designed to lock the engine in a partially tilted position for trailering only. Attempting to operate the trim\/tilt system with the wedge installed can damage the hydraulic pump, the motor, or the wedge itself. Always remove it before launching your boat or operating the engine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cb\u003ePro-Grade Standards\u003c\/b\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cb\u003eFast Global Fulfillment\u003c\/b\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n \u003cli\u003e\n\u003cb\u003eManufacturer-Direct Value\u003c\/b\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718234673467,"sku":"QM-CylinderTSYellow","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/QM-CylinderTSYellow.png?v=1762958014"},{"product_id":"hydrofoil-stabilizer-fits-yamaha-honda-suzuki-tohatsu-5-150-hp-replaces-seasierra-fo2001","title":"Hydrofoil Stabilizer – Fits Yamaha, Honda, Suzuki, Tohatsu 5-150 HP (Replaces SeaSierra FO2001)","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap; \/* Do not wrap *\/\n word-break:normal; \/* Don’t break words *\/\n letter-spacing:normal; \/* Prevent theme styles from stretching letters *\/\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis marine \u003cstrong\u003eHydrofoil Stabilizer\u003c\/strong\u003e improves planing and stability for most outboard motors and stern drives from 5 to 150 HP. It is compatible with a wide range of Yamaha, Mercury, Honda, Suzuki, Tohatsu, Johnson, and Evinrude outboards, as well as Mercruiser and OMC stern drives, for both 2-Stroke and 4-Stroke engines.\u003c\/p\u003e\n\u003cp\u003eThis part is a direct replacement for SeaSierra FO2001, UanofCn FO2001, QuickMarine HS001, and NorthBoat HS001.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasy bolt-on installation onto the anti-ventilation plate.\u003c\/li\u003e\n\u003cli\u003eConstructed from durable, UV-resistant Marine Grade Nylon PA66 plastic.\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary stainless steel mounting hardware and a drill bit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eSeaSierra\u003c\/td\u003e\n \u003ctd\u003eFO2001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eUanofCn\u003c\/td\u003e\n \u003ctd\u003eFO2001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eQuickMarine\u003c\/td\u003e\n \u003ctd\u003eHS001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNorthBoat\u003c\/td\u003e\n \u003ctd\u003eHS001\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis hydrofoil offers a universal fit for most outboards and stern drives within the specified 5-150 HP range. No specific model year limitations are noted, but always verify dimensions before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003eAll Outboards\u003c\/td\u003e\n \u003ctd\u003e5-150 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eHonda\u003c\/td\u003e\n \u003ctd\u003eAll Outboards\u003c\/td\u003e\n \u003ctd\u003e5-150 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSuzuki\u003c\/td\u003e\n \u003ctd\u003eAll Outboards\u003c\/td\u003e\n \u003ctd\u003e5-150 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eAll Outboards\u003c\/td\u003e\n \u003ctd\u003e5-150 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003eAll Outboards\u003c\/td\u003e\n \u003ctd\u003e5-150 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eJohnson\u003c\/td\u003e\n \u003ctd\u003eAll Outboards\u003c\/td\u003e\n \u003ctd\u003e5-150 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEvinrude\u003c\/td\u003e\n \u003ctd\u003eAll Outboards\u003c\/td\u003e\n \u003ctd\u003e5-150 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercruiser\u003c\/td\u003e\n \u003ctd\u003eAll Stern Drives\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOMC\u003c\/td\u003e\n \u003ctd\u003eAll Stern Drives\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003eUniversal fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eHydrofoil Stabilizer (Dorsal Fin Style)\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBolt-on with included hardware\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eDirect mount to anti-ventilation plate\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine Grade Nylon PA66 Plastic (UV-resistant)\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eGrey (Also available in Black, Blue, White, Yellow)\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eH: 10.25 inches (260.4 mm), W: 8.25 inches (209.6 mm)\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e2.41 pounds (1.09 kg)\u003c\/dd\u003e\n \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eBolt-through with included stainless steel hardware\u003c\/dd\u003e\n \u003cdt\u003eMaximum Supported Horsepower\u003c\/dt\u003e\n\u003cdd\u003e150 HP\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 x Hydrofoil Stabilizer (FO2001)\u003c\/li\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e4 x Sets\u003c\/span\u003e Stainless Steel Screws and Nuts\u003c\/li\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x 6.5mm\u003c\/span\u003e Drill Bit\u003c\/li\u003e\n \u003cli\u003e1 x Installation Instruction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eTemporarily position the hydrofoil onto your engine's anti-ventilation plate to find the optimal placement. Ensure it is centered and does not interfere with the propeller's movement.\u003c\/li\u003e\n \u003cli\u003eMark the four drill hole locations on the plate using the hydrofoil as a template.\u003c\/li\u003e\n \u003cli\u003eRemove the hydrofoil and carefully drill the marked holes using the included \u003cspan style=\"color:#d0021b;\"\u003e6.5mm drill bit\u003c\/span\u003e.\u003c\/li\u003e\n \u003cli\u003ePlace the hydrofoil back onto the plate, align the holes, and insert the stainless steel bolts.\u003c\/li\u003e\n \u003cli\u003eSecurely tighten the nuts, ensuring the hydrofoil is firmly attached. Do not overtighten to avoid damaging the plate or hydrofoil.\u003c\/li\u003e\n \u003cli\u003eDouble-check all hardware for tightness before operating your boat.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow do I know if this hydrofoil will fit my motor?\u003c\/summary\u003e\n \u003cp\u003eThis hydrofoil is designed for universal fit on most outboard and stern drive motors from 5 to 150 HP. Please check the dimensions (H: 10.25\", W: 8.25\") and ensure your anti-ventilation plate can accommodate the bolt-on installation before purchasing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat tools are required for installation?\u003c\/summary\u003e\n \u003cp\u003eInstallation requires a drill. The kit conveniently includes a 6.5mm drill bit and all necessary stainless steel screws and nuts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWill this hydrofoil improve hole shot and reduce cavitation?\u003c\/summary\u003e\n \u003cp\u003eYes, a properly installed hydrofoil is designed to help the boat get on plane faster (improving hole shot), maintain planing at lower speeds, and reduce or eliminate propeller ventilation and cavitation, leading to a smoother ride and better fuel economy.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are the signs that a hydrofoil needs to be replaced?\u003c\/summary\u003e\n \u003cp\u003eInspect the hydrofoil regularly for signs of stress cracks, chips, or fractures, especially around the mounting points. Any visible damage can compromise performance and safety, indicating it's time for a replacement.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow is this aftermarket hydrofoil different from an OEM version?\u003c\/summary\u003e\n \u003cp\u003eWhile many motor brands don't offer hydrofoils as standard OEM parts, our aftermarket stabilizer is engineered to meet or exceed industry standards for performance and durability. It provides a cost-effective solution for improving your boat's handling characteristics.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\n \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718234739003,"sku":"SS-19HS001-G","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/SS-19HS001-G.png?v=1762958017"},{"product_id":"thermostat-kit-122-f-50-c-fits-tohatsu-nissan-2-50-hp-replaces-345-01030-0-346-01030-0","title":"Thermostat Kit, 122°F (50°C) – Fits Selected Tohatsu and Nissan 2–50 HP Outboards","description":"\u003csection\u003e\n\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ethermostat kit\u003c\/strong\u003e is designed for selected Tohatsu and Nissan outboard engines using a 122°F (50°C) thermostat. The listed applications cover selected 2–50 HP models, including M, MD, MF, MFS, NS, and NSD series engines. Because application can vary by model, year, serial range, and cooling-system configuration, confirm the engine model and the original thermostat part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThe kit is listed as a replacement for Tohatsu references \u003cstrong\u003e345-01030-0\u003c\/strong\u003e, \u003cstrong\u003e345010300M\u003c\/strong\u003e, \u003cstrong\u003e345010301M\u003c\/strong\u003e, \u003cstrong\u003e346-01030-0\u003c\/strong\u003e, \u003cstrong\u003e346-01030-1\u003c\/strong\u003e, \u003cstrong\u003e350-01030-1\u003c\/strong\u003e, and \u003cstrong\u003e3H6-01030-0\u003c\/strong\u003e. These numbers are manufacturer or interchange references, not the seller's internal product identifier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement thermostat service kit for selected Tohatsu and Nissan outboards.\u003c\/li\u003e\n\u003cli\u003e122°F (50°C) thermostat opening-temperature rating.\u003c\/li\u003e\n\u003cli\u003eIncludes the thermostat, housing gasket, and two thermostat seals as listed.\u003c\/li\u003e\n\u003cli\u003eVerify the original part number and complete engine identification before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references to compare the thermostat with the part removed from your engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e345010301M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e346-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e346-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe applications below are the listed model references for this thermostat kit. Model names alone may not identify every production variant; check the model code, year or serial range where applicable, stroke type, and OEM part number together.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke \/ Configuration\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS3.5C\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMF6\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM8B\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.8B\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM15D2\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM18E2\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM25C3\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM30A4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM40C\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMD40A, MD40B, MD40B2\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMD50A, MD50B, MD50B2\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS25C3\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS30A4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS40C\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSD40B, NSD40B2\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSD50B, NSD50B2\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eThermostat kit with housing gasket and seals\u003c\/dd\u003e\n\u003cdt\u003eTemperature Rating\u003c\/dt\u003e\n\u003cdd\u003e122°F (50°C) opening temperature\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation in the existing thermostat housing\u003c\/dd\u003e\n\u003cdt\u003eHousing Finish\u003c\/dt\u003e\n\u003cdd\u003eSilver\/metallic as listed\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Thermostat\u003c\/li\u003e\n\u003cli\u003e1 × Thermostat housing gasket\u003c\/li\u003e\n\u003cli\u003e2 × Thermostat seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eAllow the engine to cool completely and follow the service manual's safety procedures.\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery if required by the engine manufacturer's service procedure.\u003c\/li\u003e\n\u003cli\u003eLocate the thermostat housing and remove the cover fasteners.\u003c\/li\u003e\n\u003cli\u003eRemove the old thermostat, gasket, and seals, noting their orientation.\u003c\/li\u003e\n\u003cli\u003eClean the mating surfaces carefully without damaging the housing or cover.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement thermostat, seals, and gasket in the correct orientation.\u003c\/li\u003e\n\u003cli\u003eReinstall the housing cover and tighten the fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eRestore the cooling system as required for the engine, start it, and check for leaks and proper temperature control.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my thermostat is failing?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include overheating, running below the expected operating temperature, inconsistent temperature behavior, or restricted cooling-system flow. Diagnose the cause before replacing the thermostat.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does the 122°F (50°C) rating mean?\u003c\/summary\u003e\u003cp\u003eIt identifies the thermostat's listed opening temperature. The thermostat begins opening near this temperature to regulate cooling-water flow through the engine according to the engine's design.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a complete kit?\u003c\/summary\u003e\u003cp\u003eThe listed package contains one thermostat, one thermostat housing gasket, and two thermostat seals. Confirm that these components match the arrangement on your engine before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit a model year not shown?\u003c\/summary\u003e\u003cp\u003eDo not rely on horsepower alone. Compare the exact model, year or serial range, stroke\/configuration, and original OEM part number with the information above and the engine service documentation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should a thermostat be replaced?\u003c\/summary\u003e\u003cp\u003eReplace it when testing identifies a fault, when it is damaged or contaminated, or during cooling-system service if the manufacturer's maintenance procedure calls for replacement. Follow the engine service manual for testing and maintenance intervals.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for an aftermarket replacement kit. The OEM numbers shown are reference numbers used for application comparison.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the shipping speed and cost?\u003c\/summary\u003e\u003cp\u003eAvailable shipping methods, delivery estimates, and shipping charges are shown at checkout and vary by destination and service level.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eWarranty and return terms are governed by the seller's current policies. Review the applicable policy before purchase and contact support if the delivered item does not match the listing or arrives damaged.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the complete engine model, year or serial range, stroke\/configuration, and original part number before ordering.\u003c\/li\u003e\n\u003cli\u003eCompare the supplied parts with the removed components before installation.\u003c\/li\u003e\n\u003cli\u003eUse the manufacturer's service manual for torque values, cooling-system procedures, testing, and safety requirements.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when the correct procedure or engine application is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — Marine replacement parts selected for fit, function, and service use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are provided at checkout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Competitive replacement-part pricing with application information to support part selection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718270488891,"sku":"GH-TH23616-T","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/GH-TH23616-T.png?v=1762958706"},{"product_id":"thermostat-kit-fits-tohatsu-nissan-2-50-hp-outboards-replaces-346-01030-345-01030","title":"Thermostat Kit, 50°C (122°F) – Fits Tohatsu\/Nissan 2–50 HP Outboards","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n table.ss-table th {\n white-space:nowrap;\n word-break:normal;\n letter-spacing:normal;\n font-weight:600;\n background:#f8fafc;\n }\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e50°C (122°F) thermostat kit\u003c\/strong\u003e is an aftermarket replacement for selected Tohatsu and Nissan outboard motors. It is intended to help the cooling system maintain the engine's specified operating temperature and includes the service components needed for a thermostat replacement.\u003c\/p\u003e\n\u003cp\u003eThe kit is associated with Tohatsu\/Nissan thermostat references including \u003cstrong\u003e345-01030-0\u003c\/strong\u003e, \u003cstrong\u003e345-01030-1\u003c\/strong\u003e, \u003cstrong\u003e346-01030-0\u003c\/strong\u003e, \u003cstrong\u003e346-01030-1\u003c\/strong\u003e, \u003cstrong\u003e350-01030-1\u003c\/strong\u003e, and \u003cstrong\u003e3H6-01030-0\u003c\/strong\u003e. Reference numbers are provided for identification; always confirm the exact model, year, stroke, and serial-number range before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e50°C (122°F) thermostat rating.\u003c\/li\u003e\n\u003cli\u003eKit format for thermostat service.\u003c\/li\u003e\n\u003cli\u003eIncludes a thermostat, housing gasket, and thermostat seals.\u003c\/li\u003e\n\u003cli\u003eFor selected Tohatsu and Nissan 2-stroke and 4-stroke outboards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following manufacturer reference numbers when comparing your original part and engine parts diagram.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eManufacturer Reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e345-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e346-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e346-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eVerified Engine Compatibility Examples\u003c\/h2\u003e\n\u003cp\u003eThe catalog relationships below keep the model, horsepower, stroke, and year conditions together. They are examples of documented applications, not a substitute for checking the complete engine identification and serial-number information.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Verified Engine Compatibility Examples\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or Model Group\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear Evidence\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM6 \/ M8 \/ M9.8B\u003c\/td\u003e\n\u003ctd\u003e6–9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2016 catalog examples\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9 \/ 15D2 \/ 18E2 \/ MX18E2\u003c\/td\u003e\n\u003ctd\u003e9.9–18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2015 catalog examples\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM25\/30H\/JET\u003c\/td\u003e\n\u003ctd\u003e25–30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2025–2026 catalog examples\u003c\/td\u003e\n\u003ctd\u003e345-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMX25\/30H\u003c\/td\u003e\n\u003ctd\u003e25–30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2025–2026 catalog examples\u003c\/td\u003e\n\u003ctd\u003e345-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS2 \/ MFS2.5 \/ MFS3.5B\u003c\/td\u003e\n\u003ctd\u003e2–3.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2017 catalog examples\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4 \/ MFS5 \/ MFS6C\u003c\/td\u003e\n\u003ctd\u003e4–6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2017 catalog examples\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eAdditional applications may exist under the reference numbers above. Model names, production years, and serial-number ranges can vary by market and engine revision, so verify against the engine's identification plate and the applicable parts diagram.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eThermostat kit\u003c\/dd\u003e\n\u003cdt\u003eThermostat Rating\u003c\/dt\u003e\n\u003cdd\u003e50°C (122°F)\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Tohatsu and Nissan 2-stroke and 4-stroke outboard motors\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation using the original thermostat housing\u003c\/dd\u003e\n\u003cdt\u003eIncluded Components\u003c\/dt\u003e\n\u003cdd\u003eThermostat, housing gasket, and thermostat seals\u003c\/dd\u003e\n\u003cdt\u003eProduct Status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement; not an OEM-branded component\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1x\u003c\/span\u003e 50°C (122°F) thermostat\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1x\u003c\/span\u003e thermostat housing gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2x\u003c\/span\u003e thermostat seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eAllow the engine to cool completely before beginning work. Follow the engine manufacturer's safety procedures.\u003c\/li\u003e\n\u003cli\u003eLocate the thermostat housing and place a suitable drain pan below the work area to collect water or coolant released during disassembly.\u003c\/li\u003e\n\u003cli\u003eRemove the housing cover carefully and note the orientation of the old thermostat, gasket, and seals.\u003c\/li\u003e\n\u003cli\u003eClean the mating surfaces and remove old gasket material without damaging the housing or cover.\u003c\/li\u003e\n\u003cli\u003eInstall the new thermostat in the same orientation as the original, then fit the supplied gasket and seals.\u003c\/li\u003e\n\u003cli\u003eReinstall the housing cover and tighten the fasteners evenly to the manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eRestore the cooling system as required for the engine, run the outboard according to the service instructions, and check for leaks and normal water flow.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eDo not substitute automotive coolant procedures for the outboard manufacturer's service procedure. Use the correct fluid and bleeding or flushing method for your specific engine.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are common signs of a failed thermostat?\u003c\/summary\u003e\n\u003cp\u003ePossible symptoms include overheating, unusually low operating temperature, inconsistent temperature behavior, or poor cooling-system performance. Blocked water passages, a damaged water pump, or other cooling-system faults can cause similar symptoms.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat temperature is this thermostat rated for?\u003c\/summary\u003e\n\u003cp\u003eThis kit is listed with a 50°C (122°F) thermostat rating.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n\u003cp\u003eCompare your original manufacturer reference with the Part Number Matrix, then verify the engine brand, exact model, horsepower, stroke, production year, and serial-number range in the applicable parts diagram. Do not rely on horsepower alone.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the kit include the service gaskets and seals?\u003c\/summary\u003e\n\u003cp\u003eYes. The listed kit contents are one thermostat, one thermostat housing gasket, and two thermostat seals.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n\u003cp\u003eNo. This is an aftermarket replacement kit intended for the documented manufacturer reference numbers and applications listed on this page.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs there a fixed replacement interval?\u003c\/summary\u003e\n\u003cp\u003eFollow the maintenance schedule for your specific outboard. Inspect the thermostat when diagnosing cooling-system problems or when the thermostat housing is opened for related service.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWork only on a cool engine and follow the manufacturer's service and safety instructions.\u003c\/li\u003e\n\u003cli\u003eConfirm the exact model, year, stroke, and serial-number range before purchase.\u003c\/li\u003e\n\u003cli\u003eCompare the supplied part and sealing components with the original before installation.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when the correct procedure or torque specifications are unavailable.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM-branded component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMarine replacement parts selected for documented applications and practical service needs.\u003c\/li\u003e\n\u003cli\u003eClear reference-number and fitment information to help support accurate part selection.\u003c\/li\u003e\n\u003cli\u003eCustomer support is available for installation and fitment questions when complete engine details are provided.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718270521659,"sku":"QM-345-01030","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/QM-345-01030.png?v=1762958708"},{"product_id":"inline-fuel-filter-fits-mercury-tohatsu-nissan-4-30hp-outboards-replaces-35-16248-369-02230-0","title":"Inline Fuel Filter for Mercury, Mariner, Tohatsu and Nissan Outboards — Replaces Mercury 35-16248 and Tohatsu\/Nissan 369-02230-0","description":"\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n table.ss-table th {\n white-space:nowrap; word-break:normal; letter-spacing:normal;\n font-weight:600; background:#f8fafc;\n }\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThis \u003cstrong\u003eInline Fuel Filter\u003c\/strong\u003e is a single replacement filter for selected Mercury, Mariner, Tohatsu, and Nissan outboard fuel systems. It helps screen contaminants from the fuel supply before they reach the engine. The translucent housing makes it possible to check fuel flow and visible debris during routine maintenance.\u003c\/p\u003e\n \u003cp\u003eFor Mercury and Mariner applications, it replaces part number \u003cstrong\u003e35-16248\u003c\/strong\u003e. The corresponding Tohatsu\/Nissan fuel-filter reference is \u003cstrong\u003e369-02230-0\u003c\/strong\u003e, also written as \u003cstrong\u003e369022300M\u003c\/strong\u003e in some parts systems. Always compare the part number, hose connection, and engine application before installation.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eSingle inline fuel filter for gasoline outboard fuel systems.\u003c\/li\u003e\n \u003cli\u003eInstalls in the fuel hose under the engine cowl or at the listed fuel-system location.\u003c\/li\u003e\n \u003cli\u003eTranslucent housing allows a quick visual check of fuel and contamination.\u003c\/li\u003e\n \u003cli\u003eSuitable for the specific applications and model families listed below; model, year, stroke, and serial conditions must be confirmed.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n \u003cp\u003eThese are reference numbers associated with the listed replacement applications. They are not the internal product identifier.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eReference Part Number\u003c\/th\u003e\n\u003cth\u003eReference Type\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e35-16248\u003c\/td\u003e\n\u003ctd\u003eReplacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e369-02230-0\u003c\/td\u003e\n\u003ctd\u003eFuel filter assembly reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e369022300M\u003c\/td\u003e\n\u003ctd\u003eAlternate formatting used in parts listings\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n \u003cp\u003eCompatibility is application-specific. Confirm the exact model designation, year, stroke type, serial range where applicable, and the reference number on your original filter before ordering.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or Application\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear \/ Condition\u003c\/th\u003e\n\u003cth\u003eReference No.\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eSelected 2-cylinder outboards\u003c\/td\u003e\n\u003ctd\u003e4–5 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999 and newer\u003c\/td\u003e\n\u003ctd\u003e35-16248\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eSelected 4-stroke outboards\u003c\/td\u003e\n\u003ctd\u003e4–6 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999 and newer\u003c\/td\u003e\n\u003ctd\u003e35-16248\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eSelected 4-stroke outboards\u003c\/td\u003e\n\u003ctd\u003e8–9.9 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005 and newer\u003c\/td\u003e\n\u003ctd\u003e35-16248\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eSelected 4-stroke outboards\u003c\/td\u003e\n\u003ctd\u003e9.9 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–1998\u003c\/td\u003e\n\u003ctd\u003e35-16248\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eSelected 4-stroke outboards\u003c\/td\u003e\n\u003ctd\u003e15 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998 and newer\u003c\/td\u003e\n\u003ctd\u003e35-16248\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM4C \/ M5B\u003c\/td\u003e\n\u003ctd\u003e4–5 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2018 catalog applications\u003c\/td\u003e\n\u003ctd\u003e369-02230-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM6B \/ M8B \/ M9.8B\u003c\/td\u003e\n\u003ctd\u003e6–9.8 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2018 catalog applications\u003c\/td\u003e\n\u003ctd\u003e369-02230-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4 \/ MFS5 \/ MFS6C\u003c\/td\u003e\n\u003ctd\u003e4–6 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2018 catalog applications\u003c\/td\u003e\n\u003ctd\u003e369-02230-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS8 \/ MFS9.8A3 and related MFS8–MFS9.8 models\u003c\/td\u003e\n\u003ctd\u003e8–9.8 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2018 catalog applications\u003c\/td\u003e\n\u003ctd\u003e369-02230-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.9 \/ MFS15 \/ MFS20C or MFS20D\u003c\/td\u003e\n\u003ctd\u003e9.9–20 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2018 catalog applications\u003c\/td\u003e\n\u003ctd\u003e369-02230-0\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The available catalog evidence confirms the Tohatsu model families and applications shown above. It does not establish blanket compatibility with every 4–30 HP Mercury, Tohatsu, or Nissan outboard. Do not rely on horsepower alone.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n \u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eInline fuel filter\u003c\/dd\u003e\n \u003cdt\u003eProduct Format\u003c\/dt\u003e\n\u003cdd\u003eSingle replacement filter\u003c\/dd\u003e\n \u003cdt\u003eFuel System\u003c\/dt\u003e\n\u003cdd\u003eGasoline outboard fuel system\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eInstalled inline with the fuel hose at the applicable engine fuel-system location\u003c\/dd\u003e\n \u003cdt\u003eHousing\u003c\/dt\u003e\n\u003cdd\u003eTranslucent plastic housing\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eVerify hose size and connection dimensions against the original filter before installation\u003c\/dd\u003e\n \u003cdt\u003eMercury \/ Mariner Reference\u003c\/dt\u003e\n\u003cdd\u003e35-16248\u003c\/dd\u003e\n \u003cdt\u003eTohatsu \/ Nissan Reference\u003c\/dt\u003e\n\u003cdd\u003e369-02230-0; alternate format 369022300M\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e1 x Inline Fuel Filter\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003eNo hose clamps, fuel hose, primer bulb, or other fuel-system components are included unless specifically shown in the order details.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eTurn the engine off, allow it to cool, and work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n \u003cli\u003eClose or disconnect the fuel supply as appropriate for your engine and keep absorbent material ready for spilled fuel.\u003c\/li\u003e\n \u003cli\u003eLocate the existing filter and note the direction of fuel flow indicated by the arrow on the filter.\u003c\/li\u003e\n \u003cli\u003eRemove the hose clamps and carefully disconnect the fuel lines from the old filter.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement filter with the flow arrow pointing toward the engine.\u003c\/li\u003e\n \u003cli\u003eSecure the fuel lines with suitable clamps and check that the connections are fully seated.\u003c\/li\u003e\n \u003cli\u003ePrime the fuel system according to the engine manufacturer's procedure.\u003c\/li\u003e\n \u003cli\u003eInspect the filter and both connections for fuel leaks before starting the engine.\u003c\/li\u003e\n \u003cli\u003eDo not operate the engine if leakage, damaged hose, loose clamps, or an incorrect connection is found.\u003c\/li\u003e\n \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow do I confirm that this filter fits my engine?\u003c\/summary\u003e\n \u003cp\u003eMatch your original filter's reference number and compare the exact engine model, year, stroke type, and hose connection with the compatibility information above. The listed references are Mercury\/Mariner 35-16248 and Tohatsu\/Nissan 369-02230-0 or 369022300M.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eDoes this fit every Mercury, Tohatsu, Nissan, or Mariner outboard from 4 to 30 HP?\u003c\/summary\u003e\n \u003cp\u003eNo blanket 4–30 HP fitment should be assumed. The confirmed applications in the available catalog evidence are narrower, particularly for Mercury\/Mariner and Tohatsu models. Check the exact application and original part number before ordering.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat are common signs of a restricted fuel filter?\u003c\/summary\u003e\n \u003cp\u003ePossible symptoms include hard starting, stalling, hesitation, reduced acceleration, or loss of power. Inspect the filter and the rest of the fuel system before replacing parts, since similar symptoms can have other causes.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eCan I install the filter in either direction?\u003c\/summary\u003e\n \u003cp\u003eNo. Install it in the direction of fuel flow, with the arrow pointing toward the engine. A reversed filter may restrict fuel delivery.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs this an OEM filter?\u003c\/summary\u003e\n \u003cp\u003eThis listing is for an aftermarket replacement filter. Mercury, Mariner, Tohatsu, and Nissan names and part numbers are used only to identify reference applications and compatibility.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat should I do if the connection does not match?\u003c\/summary\u003e\n \u003cp\u003eDo not force the filter or stretch the hose over an unsuitable connection. Stop installation and verify the part number, hose size, flow direction, and engine application.\u003c\/p\u003e\n \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eFuel is flammable. Work in a well-ventilated area and keep the filter away from flames, sparks, and hot surfaces.\u003c\/li\u003e\n \u003cli\u003eVerify the part number and physical connections before installation.\u003c\/li\u003e\n \u003cli\u003eInspect the fuel hose and clamps whenever the filter is replaced.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended if you are not familiar with marine fuel systems.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eMarine replacement parts selected for practical maintenance and repair applications.\u003c\/li\u003e\n \u003cli\u003eClear reference-number and fitment information to help customers compare replacement parts.\u003c\/li\u003e\n \u003cli\u003eSupport for choosing the correct component based on the engine model and original part number.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718270554427,"sku":"12111055-fys","price":20.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12111055-fys.png?v=1762958709"},{"product_id":"tilt-thrust-rod-spring-assembly-fits-nissan-tohatsu-9-9-20hp-replaces-350-62121-2-369-62122-2","title":"Tilt Thrust Rod \u0026 Spring Assembly – Fits Nissan\/Tohatsu 9.9–20HP Outboards, Replaces 350-62121-2 and 369-62122-2","description":"\u003csection\u003e\n\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis replacement \u003cstrong\u003eTilt Thrust Rod \u0026amp; Spring Assembly\u003c\/strong\u003e is intended for compatible Nissan and Tohatsu 9.9–20HP 2-stroke and 4-stroke outboard motors. It is used in the engine tilt-lock mechanism to help the outboard remain securely in the selected position.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket assembly is listed as a replacement for Tohatsu part numbers \u003cstrong\u003e350-62121-2\u003c\/strong\u003e and \u003cstrong\u003e369-62122-2\u003c\/strong\u003e, along with the corresponding Nissan references \u003cstrong\u003e350621212\u003c\/strong\u003e and \u003cstrong\u003e369621222\u003c\/strong\u003e. Confirm the original part number and your exact engine model, year, and serial-number range before ordering.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eReplacement thrust rod and spring assembly for the tilt mechanism.\u003c\/li\u003e\n \u003cli\u003eMetal rod and spring construction for marine service.\u003c\/li\u003e\n \u003cli\u003eDesigned as a direct replacement on compatible applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the references below to compare the listed OEM and aftermarket numbers. A matching number should still be checked against the engine model and year.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e350-62121-2\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e369-62122-2\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e350621212\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e369621222\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSouthMarine\u003c\/td\u003e\n\u003ctd\u003e350621212M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSouthMarine\u003c\/td\u003e\n\u003ctd\u003e369-62122-2\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe applications below are the compatibility information associated with the listed replacement references. Model, stroke, year, and serial-number conditions can vary, so compare your engine identification label and original component before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003+\u003c\/td\u003e\n\u003ctd\u003e350-62121-2 \/ 369-62122-2\u003c\/td\u003e\n\u003ctd\u003eVerify the exact model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003+\u003c\/td\u003e\n\u003ctd\u003e350-62121-2 \/ 369-62122-2\u003c\/td\u003e\n\u003ctd\u003eVerify the exact model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n\u003ctd\u003eNSF9.9B2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006+\u003c\/td\u003e\n\u003ctd\u003e350-62121-2 \/ 369-62122-2\u003c\/td\u003e\n\u003ctd\u003eListed for EP and EF applications; verify before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e9.9–20\u003c\/td\u003e\n\u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e350-62121-2 \/ 369-62122-2\u003c\/td\u003e\n\u003ctd\u003eApplication depends on the specific engine model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eTilt thrust rod and spring assembly\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement on compatible tilt mechanisms\u003c\/dd\u003e\n \u003cdt\u003eConstruction\u003c\/dt\u003e\n\u003cdd\u003eMetal rod with spring\u003c\/dd\u003e\n \u003cdt\u003eColor\u003c\/dt\u003e\n\u003cdd\u003eSilver\/metallic\u003c\/dd\u003e\n \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eDirect fit to the compatible tilt-lock mechanism\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eCompatible Nissan and Tohatsu outboard motors\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 × Tilt Thrust Rod \u0026amp; Spring Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eTurn the engine off, disconnect the battery where applicable, and securely support the outboard before working on the tilt mechanism.\u003c\/li\u003e\n \u003cli\u003eLocate the existing tilt thrust rod and spring assembly. Note the orientation of the original components before removal.\u003c\/li\u003e\n \u003cli\u003eRemove the retaining clips or fasteners, then carefully remove the old assembly.\u003c\/li\u003e\n \u003cli\u003eClean the surrounding area and remove old grease, salt buildup, and debris.\u003c\/li\u003e\n \u003cli\u003eApply a light coat of suitable marine-grade grease to the replacement rod if recommended by the engine service manual.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement assembly with the spring seated correctly and all components aligned.\u003c\/li\u003e\n \u003cli\u003eReinstall the retaining clips or fasteners and tighten them according to the engine manufacturer's specifications.\u003c\/li\u003e\n \u003cli\u003eOperate the tilt mechanism carefully and confirm that the rod, spring, and lock function correctly before returning the engine to service.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow do I confirm this part fits my specific engine?\u003c\/summary\u003e\n \u003cp\u003eCompare the part number on your original component with the references in the Part Number Matrix, then verify the engine brand, model, horsepower, stroke, year, and serial-number range. If any of these details differ, contact a qualified marine parts specialist before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are the signs of a failing tilt thrust rod?\u003c\/summary\u003e\n \u003cp\u003ePossible symptoms include failure of the outboard to remain locked in the tilted position, slipping from the locked position, excessive play, a bent rod, or visible corrosion or damage to the rod or spring.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhy are two Tohatsu part numbers listed?\u003c\/summary\u003e\n \u003cp\u003eThe listed replacement references are 350-62121-2 and 369-62122-2. They are included as application references for this replacement assembly; verify the number on your original component and the complete engine identification before purchasing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eIs maintenance recommended?\u003c\/summary\u003e\n \u003cp\u003eRinse the tilt mechanism with fresh water after saltwater use and inspect the rod, spring, clips, and surrounding mechanism during routine service. Lubricate only as specified in the engine service manual.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eCan I install this part myself?\u003c\/summary\u003e\n \u003cp\u003eInstallation may be suitable for someone with appropriate marine-mechanical experience. Because the tilt mechanism supports the outboard, use the correct service procedures and secure the engine properly. Professional installation is recommended if you are unsure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n \u003cp\u003eThis listing is for an aftermarket replacement, not a genuine OEM component. The referenced OEM numbers are provided for identification and compatibility comparison only.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are the shipping and warranty terms?\u003c\/summary\u003e\n \u003cp\u003eShipping options, delivery estimates, warranty coverage, and return conditions are determined by the current store policies and are shown at checkout or on the applicable policy pages.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eConfirm the original part number and complete engine identification before ordering.\u003c\/li\u003e\n \u003cli\u003eDo not rely on horsepower alone; model, stroke, year, and serial-number conditions must also match.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not a genuine OEM component.\u003c\/li\u003e\n \u003cli\u003eSupport the outboard securely during installation and follow the engine manufacturer's service instructions.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when the correct procedure or fitment is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts selected for dependable service in real-world conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Available delivery methods and estimated transit times are displayed at checkout.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We aim to provide practical replacement solutions at competitive prices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718270718267,"sku":"24RS428R2","price":13.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24RS428R2.png?v=1762958716"},{"product_id":"hydrofoil-stabilizer-fits-yamaha-mercury-johnson-evinrude-honda-suzuki-tohatsu-8-40-hp-replaces-seasierra-fo2002-stingray-junior-2-hydrofoil-se-sport-200","title":"Hydrofoil Stabilizer for 8–40 HP Outboard Motors – Blue, Drilling-Mount Design","description":"\u003cstyle\u003e\n \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n \/* Base table styles *\/\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n\n \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n table.ss-table th {\n white-space:nowrap;\n word-break:normal;\n letter-spacing:normal;\n font-weight:600;\n background:#f8fafc;\n }\n\n \/* Small screen optimization *\/\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThis \u003cstrong\u003eblue whale-tail hydrofoil stabilizer\u003c\/strong\u003e is designed for small outboard motors rated from 8 to 40 HP. Mounted to the anti-cavitation plate, it can help improve low-speed handling, reduce bow rise, and help the boat reach planing speed more efficiently.\u003c\/p\u003e\n \u003cp\u003eThe stabilizer is intended for many Yamaha, Mercury, Johnson, Evinrude, Honda, Suzuki, and Tohatsu outboards. Compatibility depends on the exact engine configuration and anti-cavitation-plate shape, so confirm the dimensions and the application notes before installation.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eWhale-tail design for added stern lift and improved control.\u003c\/li\u003e\n \u003cli\u003eMounts directly to the outboard anti-cavitation plate.\u003c\/li\u003e\n \u003cli\u003eDrilling is required for installation; mounting hardware and a drill bit are included.\u003c\/li\u003e\n \u003cli\u003eConstructed from durable marine-grade nylon plastic.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eEquivalent Aftermarket References\u003c\/h2\u003e\n \u003cp\u003eThe following references are provided as aftermarket comparison terms. They are not manufacturer endorsements, and fitment should still be confirmed against the engine and product dimensions.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Equivalent Aftermarket References\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eReference\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eSeaSierra\u003c\/td\u003e\n \u003ctd\u003eFO2002\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStingRay\u003c\/td\u003e\n \u003ctd\u003eJunior 2 Hydrofoil\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSE Sport\u003c\/td\u003e\n \u003ctd\u003e200\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n \u003cp\u003eThis hydrofoil is intended for many 8–40 HP outboard applications. Confirm the exact engine model, year, mounting area, and anti-cavitation-plate dimensions before drilling.\u003c\/p\u003e\n \u003cp\u003e\u003cstrong\u003eMercury note:\u003c\/strong\u003e Do not use this product with Mercury 40, 50, or 60 four-stroke models unless fitment has been independently confirmed for the specific engine.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eApplication\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eYamaha\u003c\/td\u003e\n \u003ctd\u003e8–40 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eMany applications\u003c\/td\u003e\n \u003ctd\u003eVerify the exact model and plate dimensions.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8–40 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eMany applications\u003c\/td\u003e\n \u003ctd\u003eNot intended for 40, 50, or 60 four-stroke models unless specifically confirmed.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n \u003ctd\u003e8–40 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eMany applications\u003c\/td\u003e\n \u003ctd\u003eVerify the exact model and plate dimensions.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eHonda\u003c\/td\u003e\n \u003ctd\u003e8–40 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eMany applications\u003c\/td\u003e\n \u003ctd\u003eVerify the exact model and plate dimensions.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSuzuki\u003c\/td\u003e\n \u003ctd\u003e8–40 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eMany applications\u003c\/td\u003e\n \u003ctd\u003eVerify the exact model and plate dimensions.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e8–40 HP\u003c\/td\u003e\n \u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n \u003ctd\u003eMany applications\u003c\/td\u003e\n \u003ctd\u003eVerify the exact model and plate dimensions.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n \u003cdd\u003eHydrofoil stabilizer\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n \u003cdd\u003eOutboard and compatible sterndrive mounting applications\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n \u003cdd\u003eAnti-cavitation plate mount\u003c\/dd\u003e\n \u003cdt\u003eMaterial\u003c\/dt\u003e\n \u003cdd\u003eMarine-grade nylon PA66 plastic\u003c\/dd\u003e\n \u003cdt\u003eColor\u003c\/dt\u003e\n \u003cdd\u003eBlue\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n \u003cdd\u003e13.39 × 13.7 in. (340 × 348 mm)\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n \u003cdd\u003e1.33 kg (2.94 lb)\u003c\/dd\u003e\n \u003cdt\u003eMounting Hardware\u003c\/dt\u003e\n \u003cdd\u003eStainless-steel screws and nuts\u003c\/dd\u003e\n \u003cdt\u003eInstallation Method\u003c\/dt\u003e\n \u003cdd\u003eDrilling required; 6.5 mm drill bit included\u003c\/dd\u003e\n \u003cdt\u003eHorsepower Range\u003c\/dt\u003e\n \u003cdd\u003e8–40 HP\u003c\/dd\u003e\n \u003cdt\u003eLower-Power Applications\u003c\/dt\u003e\n \u003cdd\u003eSome 4 HP applications may be compatible; verify dimensions before purchase.\u003c\/dd\u003e\n \u003cdt\u003eEngine Type\u003c\/dt\u003e\n \u003cdd\u003e2-Stroke and 4-Stroke applications, as applicable\u003c\/dd\u003e\n \u003cdt\u003eDesign\u003c\/dt\u003e\n \u003cdd\u003eWhale-tail profile for added lift and control\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e1 × Hydrofoil stabilizer\u003c\/li\u003e\n \u003cli\u003e4 sets of stainless-steel screws and nuts\u003c\/li\u003e\n \u003cli\u003e1 × 6.5 mm drill bit\u003c\/li\u003e\n \u003cli\u003e1 × Installation instruction sheet\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eCenter the hydrofoil on the outboard’s anti-cavitation plate and check that the selected position will not interfere with steering or propulsion components.\u003c\/li\u003e\n \u003cli\u003eUse the hydrofoil as a template to mark the four mounting-hole locations.\u003c\/li\u003e\n \u003cli\u003eRemove the hydrofoil and carefully drill the four holes with the included 6.5 mm drill bit.\u003c\/li\u003e\n \u003cli\u003ePosition the hydrofoil on the plate and align the holes.\u003c\/li\u003e\n \u003cli\u003eInsert the stainless-steel screws from the top and secure them with the nuts underneath. Tighten evenly without overtightening or deforming the plate.\u003c\/li\u003e\n \u003cli\u003eBefore operation, confirm that all hardware is secure and that the hydrofoil does not contact the propeller, rudder, trim mechanism, or other moving parts.\u003c\/li\u003e\n \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWill this fit my specific boat model?\u003c\/summary\u003e\n \u003cp\u003eFitment is determined primarily by the outboard motor and the shape and dimensions of its anti-cavitation plate, not by the boat model alone. Check the engine brand, horsepower, stroke type, exact model, and available mounting area before installation.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow can a hydrofoil improve performance?\u003c\/summary\u003e\n \u003cp\u003eThe whale-tail profile adds lift at the stern and may help reduce bow rise, improve low-speed control, and bring a boat onto plane more quickly. Results vary with the boat, load, propeller, engine setup, and operating conditions.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs drilling into the anti-cavitation plate required?\u003c\/summary\u003e\n \u003cp\u003eYes. This design uses drilled mounting holes and the supplied screws and nuts. Installation should be completed carefully, with the hydrofoil centered and clear of the propeller and other moving parts.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eCan this stabilizer affect top speed?\u003c\/summary\u003e\n \u003cp\u003eAny hydrofoil can increase drag and may slightly affect top speed or handling on some boats. Check the installation, alignment, and engine trim if performance changes unexpectedly.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat maintenance is required?\u003c\/summary\u003e\n \u003cp\u003ePeriodically check the mounting screws and nuts for tightness and inspect the hydrofoil for cracks, deformation, or impact damage. Recheck the hardware after the first operating session and after use in rough conditions.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n \u003cp\u003eNo. This is an aftermarket hydrofoil stabilizer. Brand and reference names shown above are provided only for comparison and application research.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat should I do if the dimensions do not match?\u003c\/summary\u003e\n \u003cp\u003eDo not drill or install the hydrofoil if the mounting area, hole pattern, clearance, or product dimensions do not match your engine. Choose a product designed for the specific application instead.\u003c\/p\u003e\n \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eConfirm the engine application and physical dimensions before purchase and installation.\u003c\/li\u003e\n \u003cli\u003eDo not install the hydrofoil where it can contact the propeller, steering system, trim mechanism, or other moving components.\u003c\/li\u003e\n \u003cli\u003eUse appropriate eye protection and safe drilling practices during installation.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended if you are not experienced with drilling and outboard hardware.\u003c\/li\u003e\n \u003cli\u003eInspect the mounting hardware and hydrofoil before each period of regular use.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical aftermarket components for common marine applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Support\u003c\/strong\u003e — Verify model, dimensions, and installation requirements before ordering.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eQuality-Controlled Supply\u003c\/strong\u003e — Products are selected for dependable use in ordinary marine service conditions.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718271373627,"sku":"SS-20HS001-B","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/SS-20HS001-B.png?v=1762958743"},{"product_id":"thermostat-gasket-kit-fits-mercury-marine-8-35-hp-replaces-855676002-8m0119207","title":"Thermostat \u0026 Gasket Kit for Mercury Marine 8–35 HP 4-Stroke Outboards – Replaces 855676002 and 8M0119207","description":"\u003csection\u003e\n\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ethermostat and gasket kit\u003c\/strong\u003e is intended for selected Mercury Marine 8–35 HP 4-Stroke outboard motors and replaces the listed Mercury reference numbers. The supplied application information covers selected 209cc two-cylinder and three-cylinder engines, including certain Mercury, Tohatsu, and Nissan 4-Stroke models that use a 60°C (140°F) thermostat.\u003c\/p\u003e\n\u003cp\u003eBecause fitment can vary by model designation, production year, engine configuration, and serial number, compare the part number and application details with your original component before ordering. The references below are provided for identification and interchange checking; they do not replace confirmation against the specific engine serial number.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eReplacement thermostat service kit for selected marine 4-Stroke applications.\u003c\/li\u003e\n \u003cli\u003e60°C (140°F) thermostat rating.\u003c\/li\u003e\n \u003cli\u003eIncludes the thermostat, thermostat-cover gasket, and rubber ring seal listed below.\u003c\/li\u003e\n \u003cli\u003eDesigned as an aftermarket direct-replacement solution where the listed references and fitment conditions match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following manufacturer and aftermarket references to help compare your existing part.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e855676002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0119207\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0139434\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e855676005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-43175\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-43175\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3NV010300M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3R3-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3R3010300M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe applications below reflect the supplied fitment information. Confirm the complete model, year, stroke, configuration, and serial-number range before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or Configuration\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eApplicable Reference\u003c\/th\u003e\n\u003cth\u003eSerial or Application Notes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R042475 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R042475 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eCarbureted, 2-cylinder\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R235949 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSeaPro\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R051685 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eCarbureted, 2-cylinder\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R235168 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eEFI, 3-cylinder\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R106999 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eJet EFI, 3-cylinder\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R165086 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSeaPro\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial R051710 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eEFI, 3-cylinder\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2012\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSerial T409000–1B226999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSeaPro\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSelected 209cc models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–present\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207\u003c\/td\u003e\n\u003ctd\u003eSelected 209cc models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eVarious listed applications\u003c\/td\u003e\n\u003ctd\u003e8–30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3NV010300M \/ 3R3-01030-0\u003c\/td\u003e\n\u003ctd\u003eVerify the exact model and serial number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n \u003cdd\u003eThermostat and gasket kit\u003c\/dd\u003e\n \u003cdt\u003eThermostat Rating\u003c\/dt\u003e\n \u003cdd\u003e60°C (140°F)\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n \u003cdd\u003eSelected Mercury Marine, Tohatsu, and Nissan 4-Stroke outboards\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eReplacement installation; verify the application before fitting\u003c\/dd\u003e\n \u003cdt\u003eProduct Status\u003c\/dt\u003e\n \u003cdd\u003eAftermarket replacement, not an OEM-branded component\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 × 60°C (140°F) thermostat, replacing the listed 855676002 \/ 8M0119207 references\u003c\/li\u003e\n \u003cli\u003e1 × thermostat-cover gasket, listed as replacing 27-853702005\u003c\/li\u003e\n \u003cli\u003e1 × rubber ring seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eConfirm the engine model, stroke, horsepower, year, serial number, and existing thermostat reference before starting.\u003c\/li\u003e\n \u003cli\u003eSwitch off the engine and allow it to cool completely.\u003c\/li\u003e\n \u003cli\u003eFollow the engine manufacturer’s service procedure for access to the thermostat housing.\u003c\/li\u003e\n \u003cli\u003eRemove the thermostat cover and note the orientation of the original thermostat, gasket, and seal.\u003c\/li\u003e\n \u003cli\u003eRemove all old sealing material and clean the mating surfaces without damaging the housing or cover.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement thermostat, gasket, and rubber ring seal in the correct orientation.\u003c\/li\u003e\n \u003cli\u003eReinstall the cover and tighten the fasteners to the manufacturer’s specified torque.\u003c\/li\u003e\n \u003cli\u003eOperate the engine using the appropriate water-supply or test procedure for the outboard.\u003c\/li\u003e\n \u003cli\u003eCheck for leakage and confirm that the engine reaches and maintains its normal operating temperature.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eInstallation should be performed by a qualified technician when the correct service procedure, torque values, or cooling-system requirements are not known. Do not add automotive coolant or drain a closed cooling system unless the specific engine design and manufacturer’s service instructions require it.\u003c\/p\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow do I confirm that this kit fits my engine?\u003c\/summary\u003e\n \u003cp\u003eMatch the thermostat or kit reference on your existing part with the Part Number Matrix, then confirm the complete engine model, horsepower, stroke, year, configuration, and serial-number range. A model that falls within the general horsepower range is not sufficient by itself.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are common signs of a failing thermostat?\u003c\/summary\u003e\n \u003cp\u003ePossible symptoms include overheating, the engine running below its normal operating temperature, unstable temperature readings, or leakage near the thermostat housing. Before replacing the thermostat, inspect the water passages, water pump, cooling-system components, and temperature-sensing equipment as appropriate.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eIs this a 140°F or 60°C thermostat?\u003c\/summary\u003e\n \u003cp\u003eIt is specified as a 60°C thermostat, which is approximately 140°F.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow often should the thermostat be replaced?\u003c\/summary\u003e\n \u003cp\u003eThere is no single replacement interval for every outboard. Inspect the thermostat during scheduled cooling-system service and replace it if it is corroded, sticking, damaged, contaminated, or associated with abnormal engine temperature.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n \u003cp\u003eNo. This listing is for an aftermarket replacement kit intended for applications where the listed reference numbers and fitment conditions match. Mercury, Tohatsu, Nissan, Sierra, and Mallory names and numbers are used only to identify compatibility or reference applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat should I do if my model appears compatible but the part looks different?\u003c\/summary\u003e\n \u003cp\u003eDo not install the part until the dimensions, housing arrangement, thermostat rating, gasket shape, and reference number have been confirmed. Contact a qualified marine technician or compare the engine serial number with the manufacturer’s parts information.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eWork only on a completely cool engine and follow the engine manufacturer’s service instructions.\u003c\/li\u003e\n \u003cli\u003eVerify fitment using the complete model and serial-number information before ordering or installing.\u003c\/li\u003e\n \u003cli\u003eDo not force the thermostat, gasket, or seal into position; incorrect orientation can cause leakage or cooling problems.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement and is not an OEM-branded component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when the correct service procedure or torque specifications are unavailable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMarine Parts Focus\u003c\/strong\u003e — Replacement components selected for common marine service applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Conscious Listings\u003c\/strong\u003e — Use the listed references and engine conditions to confirm compatibility before purchase.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSupport for Routine Maintenance\u003c\/strong\u003e — Replacement parts for keeping compatible outboard cooling systems in service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718271406395,"sku":"jz12111254","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/jz12111254.png?v=1762958744"},{"product_id":"thermostat-kit-fits-mercury-marine-tohatsu-nissan-4-stroke-8-30-hp-outboards-replaces-855676002-3nv010300m","title":"Thermostat Kit for Mercury Marine 4-Stroke 8–30 HP Outboards – Replaces 855676002, 8M0119207, 8M0139434 and 855676005","description":"\u003csection\u003e\n\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis thermostat kit is designed as a replacement service solution for selected Mercury Marine 4-Stroke 8–30 HP outboard engines. A properly functioning thermostat helps regulate engine operating temperature and supports consistent cooling-system performance.\u003c\/p\u003e\n\u003cp\u003eThe kit is intended for selected engines that use the applicable thermostat specification and replaces the Mercury part numbers listed below. Always compare the part number, thermostat housing and gasket arrangement with the part removed from your engine before ordering.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eAftermarket replacement thermostat kit for selected Mercury Marine 4-Stroke outboards.\u003c\/li\u003e\n \u003cli\u003eDesigned to help maintain stable operating temperature.\u003c\/li\u003e\n \u003cli\u003eIncludes the thermostat, cover gasket and thermostat seals shown in the package contents.\u003c\/li\u003e\n \u003cli\u003eConfirm the exact engine model, serial range and original part number before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are replacement or cross-reference references associated with this thermostat application. Cross-reference numbers should be used together with engine model and serial-range verification.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e855676002\u003c\/td\u003e\n\u003ctd\u003eReplacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0119207\u003c\/td\u003e\n\u003ctd\u003eReplacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0139434\u003c\/td\u003e\n\u003ctd\u003eReplacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e855676005\u003c\/td\u003e\n\u003ctd\u003eReplacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3NV010300M\u003c\/td\u003e\n\u003ctd\u003eReference for selected applications; verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3R3-01030-0\u003c\/td\u003e\n\u003ctd\u003eReference for selected applications; verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3R3010300M\u003c\/td\u003e\n\u003ctd\u003eReference for selected applications; verify before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-43175\u003c\/td\u003e\n\u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-43175\u003c\/td\u003e\n\u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis thermostat kit is intended for selected Mercury Marine 4-Stroke 8–30 HP outboards, including applications using the 209 cc engine platform. The exact fit can vary by model year, engine configuration and serial number. The table below is an application guide rather than a substitute for checking the original part number.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility\"\u003e\n \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eApplicable Reference\u003c\/th\u003e\n\u003cth\u003eFitment Note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected 4-Stroke outboards\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207 \/ 8M0139434 \/ 855676005\u003c\/td\u003e\n\u003ctd\u003e209 cc, 2-cylinder applications; verify model and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected 4-Stroke outboards\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207 \/ 8M0139434 \/ 855676005\u003c\/td\u003e\n\u003ctd\u003e209 cc, 2-cylinder applications; verify model and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected 4-Stroke outboards\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207 \/ 8M0139434 \/ 855676005\u003c\/td\u003e\n\u003ctd\u003eSelected 209 cc applications; verify model and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected 4-Stroke outboards\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207 \/ 8M0139434 \/ 855676005\u003c\/td\u003e\n\u003ctd\u003eSelected 209 cc applications; verify model and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected 4-Stroke outboards\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207 \/ 8M0139434 \/ 855676005\u003c\/td\u003e\n\u003ctd\u003eSelected 209 cc applications; verify model and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected 4-Stroke outboards\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e855676002 \/ 8M0119207 \/ 8M0139434 \/ 855676005\u003c\/td\u003e\n\u003ctd\u003eSelected 209 cc applications; verify model and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eSelected Tohatsu and Nissan 4-Stroke outboards may use related thermostat references. Confirm the engine model, year, serial number and original thermostat before purchase; horsepower alone does not establish fitment.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAftermarket thermostat repair kit\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Mercury Marine and related 4-Stroke outboard applications\u003c\/dd\u003e\n \u003cdt\u003eRated Engine Range\u003c\/dt\u003e\n\u003cdd\u003e8–30 HP, subject to model and serial-range verification\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement when the listed reference and housing configuration match\u003c\/dd\u003e\n \u003cdt\u003eTemperature Rating\u003c\/dt\u003e\n\u003cdd\u003e60°C (140°F)\u003c\/dd\u003e\n \u003cdt\u003ePackage Weight\u003c\/dt\u003e\n\u003cdd\u003e0.08 lb (0.036 kg)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Thermostat\u003c\/li\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Thermostat cover gasket\u003c\/li\u003e\n \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Thermostat seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eTurn the engine off, allow it to cool completely and remove the ignition key. Follow the safety procedures in the engine service manual.\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery where required by the manufacturer and place the outboard in a stable service position.\u003c\/li\u003e\n \u003cli\u003eLocate the thermostat housing and note the position and length of each fastener.\u003c\/li\u003e\n \u003cli\u003eRemove the housing cover carefully. Water may remain in the cooling passages, so protect the surrounding area from spills.\u003c\/li\u003e\n \u003cli\u003eRemove the old thermostat, gasket and seals, noting the thermostat orientation.\u003c\/li\u003e\n \u003cli\u003eClean the housing and cover mating surfaces. Remove old gasket material and corrosion without damaging the sealing surfaces.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement thermostat in the same orientation as the original, then position the new gasket and seals correctly.\u003c\/li\u003e\n \u003cli\u003eReinstall the housing cover and tighten the fasteners to the manufacturer's specified torque and sequence.\u003c\/li\u003e\n \u003cli\u003eRestore any removed connections and run the engine using the correct water-supply method for the outboard. Check for leaks and confirm normal water discharge and temperature behavior.\u003c\/li\u003e\n \u003cli\u003eIf the engine overheats, has weak water discharge or shows a warning, stop the engine immediately and inspect the installation and cooling system.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my thermostat is failing?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include overheating, unusually low operating temperature, unstable temperature behavior, reduced performance or a thermostat that is visibly corroded or stuck. Inspect the thermostat and the rest of the cooling system before replacing parts.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat happens if the thermostat is stuck open or closed?\u003c\/summary\u003e\u003cp\u003eA thermostat stuck closed can restrict cooling flow and contribute to overheating. A thermostat stuck open can prevent the engine from reaching its intended operating temperature. Either condition should be diagnosed promptly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the thermostat temperature rating?\u003c\/summary\u003e\u003cp\u003eThis listing identifies a 60°C (140°F) thermostat rating. Verify the required temperature specification for your exact engine model and serial range before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should an outboard thermostat be replaced?\u003c\/summary\u003e\u003cp\u003eReplacement intervals depend on the manufacturer's maintenance schedule, operating hours and water conditions. Inspect the thermostat when performing scheduled cooling-system service and replace it if it is corroded, stuck or damaged.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install this thermostat kit myself?\u003c\/summary\u003e\u003cp\u003eInstallation may be straightforward for an experienced boat owner, but correct orientation, gasket placement, fastener torque and post-installation cooling-system checks are important. Use the applicable service manual or consult a qualified marine technician if you are unsure.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a direct replacement for my original thermostat?\u003c\/summary\u003e\u003cp\u003eIt is designed as a direct replacement only when your original part number, engine application and housing configuration match the references listed on this page. Confirm fitment before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement kit and is not manufactured by Mercury Marine, Tohatsu, Nissan, Sierra or Mallory.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is included with the kit?\u003c\/summary\u003e\u003cp\u003eThe package includes one thermostat, one thermostat cover gasket and two thermostat seals. No additional engine parts, tools or installation hardware are included unless specifically listed above.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed and cost\u003c\/summary\u003e\u003cp\u003eStandard shipping is free where offered. Typical transit is 5–15 days, while available expedited options and delivery estimates are shown at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty and returns\u003c\/summary\u003e\u003cp\u003eWarranty coverage and return eligibility are subject to the applicable store policies. Contact customer support with your order details if you receive a damaged or incorrect part.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify the engine brand, model, year, serial range, original part number and thermostat housing before ordering.\u003c\/li\u003e\n \u003cli\u003eDo not rely on horsepower alone to establish compatibility.\u003c\/li\u003e\n \u003cli\u003eNever work on a hot engine or operate an outboard without the correct water supply.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when the service procedure or fitment is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — Marine replacement parts selected for dependable fit and service performance.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions where offered.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Competitive pricing with practical aftermarket replacement options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718272225595,"sku":"GH-TH21012-M","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/GH-TH21012-M.png?v=1762958770"},{"product_id":"carburetor-repair-kit-fits-tohatsu-nissan-8hp-9-8hp-4-stroke-replaces-3v1-87122-0","title":"Carburetor Repair Kit for Tohatsu 8HP\/9.8HP 4-Stroke Outboards – Replaces 3V1-87122-0","description":"\u003csection\u003e\n \u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n details \u003e summary { padding:8px 0; font-weight:600; cursor:pointer; }\n details \u003e p { padding-bottom:8px; }\n @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n \u003c\/style\u003e\n\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThis aftermarket \u003cstrong\u003ecarburetor repair kit\u003c\/strong\u003e is designed to service compatible Tohatsu 8HP and 9.8HP four-stroke outboard carburetors. It replaces worn gaskets, seals, the float-related components, the needle valve and other service parts to help restore proper fuel metering and reliable engine operation.\u003c\/p\u003e\n \u003cp\u003eThe kit is associated with Tohatsu OEM reference \u003cstrong\u003e3V1-87122-0\u003c\/strong\u003e, also written without hyphens as \u003cstrong\u003e3V1871220M\u003c\/strong\u003e in some listings. Confirm the number, carburetor configuration and engine model before ordering.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eReplacement carburetor service kit for selected marine outboards.\u003c\/li\u003e\n \u003cli\u003eHelps address hard starting, poor idling, fuel leakage and inconsistent fuel delivery caused by worn service parts.\u003c\/li\u003e\n \u003cli\u003eSuitable for DIY or professional installation by a technician familiar with outboard carburetors.\u003c\/li\u003e\n \u003cli\u003eAftermarket replacement; not an OEM-manufactured component.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003eReference Part Numbers\u003c\/h2\u003e\n \u003cp\u003eThese references are provided for identification and cross-reference purposes. A matching number alone does not replace verification of the complete engine model and serial-number range.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Reference part numbers\"\u003e\n \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand or source\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3V1-87122-0\u003c\/td\u003e\n\u003ctd\u003eOEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3V1871220M\u003c\/td\u003e\n\u003ctd\u003eUnhyphenated reference format used in some listings\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e802706A1\u003c\/td\u003e\n\u003ctd\u003eSeparate Mercury carburetor-kit reference; verify the exact Mercury engine application before using this cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e66M-W0093-01-00\u003c\/td\u003e\n\u003ctd\u003eSeparate Yamaha carburetor-kit reference found in Yamaha parts catalogs; verify the exact Yamaha application before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-7738\u003c\/td\u003e\n\u003ctd\u003eAftermarket cross-reference shown in the original listing; verify application independently\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-37510\u003c\/td\u003e\n\u003ctd\u003eAftermarket cross-reference shown in the original listing; verify application independently\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003ch2\u003eConfirmed Application Guidance\u003c\/h2\u003e\n \u003cp\u003eThe strongest available application evidence associates reference 3V1-87122-0 with Tohatsu carburetor kits for the \u003cstrong\u003eMF8\/9.8A, MF8\/9.8A2 and MF8\/9.8A3\u003c\/strong\u003e model families. The model-family reference does not establish every year, serial number, shaft length or regional variant, so those details must be checked against the engine identification plate and service information.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Tohatsu application guidance\"\u003e\n \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel family\u003c\/th\u003e\n\u003cth\u003eRated output\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eApplication note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMF8\/9.8A\u003c\/td\u003e\n\u003ctd\u003e8HP \/ 9.8HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eVerify the exact carburetor and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMF8\/9.8A2\u003c\/td\u003e\n\u003ctd\u003e8HP \/ 9.8HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eVerify the exact carburetor and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMF8\/9.8A3\u003c\/td\u003e\n\u003ctd\u003e8HP \/ 9.8HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eVerify the exact carburetor and serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n \u003cp\u003eDo not assume compatibility with Nissan-branded engines, Mercury engines or Yamaha engines solely because a similar reference appears in a cross-reference list. Those applications require separate confirmation of the engine model, year or serial range and carburetor configuration.\u003c\/p\u003e\n\n \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n \u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n \u003cdd\u003eCarburetor repair kit\u003c\/dd\u003e\n \u003cdt\u003ePrimary Application\u003c\/dt\u003e\n \u003cdd\u003eSelected Tohatsu 8HP and 9.8HP four-stroke outboards\u003c\/dd\u003e\n \u003cdt\u003eFuel System\u003c\/dt\u003e\n \u003cdd\u003eCarbureted gasoline outboard engine\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eDIY or professional installation\u003c\/dd\u003e\n \u003cdt\u003ePart Type\u003c\/dt\u003e\n \u003cdd\u003eAftermarket replacement service kit\u003c\/dd\u003e\n \u003cdt\u003eFitment Requirement\u003c\/dt\u003e\n \u003cdd\u003eMatch the carburetor and engine identification details before purchase\u003c\/dd\u003e\n \u003c\/dl\u003e\n\n \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n \u003cp\u003eThe original listing identifies the following service components. Exact component appearance may vary by production batch, so compare the supplied pieces with the original carburetor and the applicable service information before installation.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e1 x Gasket, 66M-14398-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Gasket, 6L2-14398-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Stopper, 66M-14377-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Float-chamber gasket, 66M-14384-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Float, 6L2-14385-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Float pin, 6E5-14386-01-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Needle valve, 6L2-14392-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Gasket, 62Y-14399-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Air-adjusting screw, 12V-14105-00-00 reference\u003c\/li\u003e\n \u003cli\u003e4 x Screws with washers, 97980-04112-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x O-ring, 5H0-14397-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x O-ring, 6F5-14397-00-00 reference\u003c\/li\u003e\n \u003cli\u003e1 x Filter, 66M-14827-00-00 reference\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eStop the engine, disconnect the battery where applicable and shut off the fuel supply before beginning work.\u003c\/li\u003e\n \u003cli\u003eRemove the carburetor according to the applicable engine service procedure.\u003c\/li\u003e\n \u003cli\u003eDisassemble the carburetor on a clean work surface and record the position of adjustment parts before removal.\u003c\/li\u003e\n \u003cli\u003eClean reusable metal parts with a suitable carburetor cleaner. Keep rubber and plastic components away from solvents that may damage them.\u003c\/li\u003e\n \u003cli\u003eRemove the old gaskets, seals, float components and needle valve being replaced.\u003c\/li\u003e\n \u003cli\u003eInstall the new components and confirm that each gasket and O-ring is seated correctly.\u003c\/li\u003e\n \u003cli\u003eSet float height and adjustment screws only to the specifications in the applicable engine service manual.\u003c\/li\u003e\n \u003cli\u003eReassemble and reinstall the carburetor, reconnect the fuel line and check carefully for leaks.\u003c\/li\u003e\n \u003cli\u003eStart and tune the engine only in a safe, well-ventilated area and follow the manufacturer’s adjustment procedure.\u003c\/li\u003e\n \u003c\/ol\u003e\n\n \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n \u003cp\u003eCompare the number on the original carburetor or repair kit with the listed reference, then verify the complete engine model family and serial-number range. Also compare the carburetor body, float arrangement and gasket layout before installation.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat symptoms may indicate a carburetor rebuild is needed?\u003c\/summary\u003e\n \u003cp\u003eHard starting, rough idle, stalling, fuel leakage, poor throttle response and loss of power may result from blocked passages, worn gaskets, a damaged float or a leaking needle valve. These symptoms can also have other causes, so inspect the complete fuel system.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eAre special tools required?\u003c\/summary\u003e\n \u003cp\u003eBasic hand tools and appropriate carburetor cleaner are generally required. A float-height gauge or suitable measuring tool may be needed, depending on the engine service procedure.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eCan this kit be used on every 8HP or 9.8HP outboard?\u003c\/summary\u003e\n \u003cp\u003eNo. Horsepower and stroke alone do not confirm fitment. Match the engine model, serial range and carburetor configuration before ordering.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat should I do if the engine runs poorly after installation?\u003c\/summary\u003e\n \u003cp\u003eCheck for air leaks, fuel leaks, incorrect gasket placement, debris in the passages and an incorrectly set float. Use the applicable service manual for idle and mixture adjustments rather than relying on a universal setting.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n \u003cp\u003eNo. This is an aftermarket replacement kit. The listed manufacturer numbers are reference numbers used to identify possible applications and are not a claim that this kit was manufactured by the engine brand.\u003c\/p\u003e\n \u003c\/details\u003e\n\n \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eWork in a well-ventilated area away from flames, sparks and other ignition sources.\u003c\/li\u003e\n \u003cli\u003eUse eye protection and follow the instructions for any cleaning chemicals.\u003c\/li\u003e\n \u003cli\u003eConfirm the engine model, serial range and carburetor configuration before purchase.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when the correct float, gasket or adjustment specifications are uncertain.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n \u003cp\u003eSea Sierra supplies aftermarket marine replacement parts and service components for maintenance and repair applications. Product fitment should always be confirmed against the engine identification information and the original component before ordering.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723776135483,"sku":"19CR004JLM","price":25.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/19CR004JLM.png?v=1763031534"},{"product_id":"water-pump-impeller-fits-mercury-tohatsu-nissan-8-9-9hp-4-stroke-6-8-9-8hp-2-stroke-replaces-47-8037481-3b2-65021-1","title":"Water Pump Impeller for Mercury 8\/9.9 HP 4-Stroke and Tohatsu\/Nissan 6\/8\/9.8 HP Outboards – Replaces 47-8037481, 3B2-65021-1","description":"\u003csection\u003e\n \u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n \u003c\/style\u003e\n\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThis replacement \u003cstrong\u003ewater pump impeller\u003c\/strong\u003e is designed for selected Mercury, Tohatsu, and Nissan outboard cooling systems. It is a single impeller supplied for installation in the lower-unit water pump assembly.\u003c\/p\u003e\n \u003cp\u003eCompany fitment data identifies this impeller for Mercury 8 HP and 9.9 HP 4-stroke engines, including the 209 cc configuration, as well as Tohatsu\/Nissan 6 HP, 8 HP, and 9.8 HP 2-stroke engines. It is also listed for Tohatsu MFS8 and MFS9.8 4-stroke models. Always compare the part number and the original impeller before ordering.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eReplacement water pump impeller for selected small outboard engines.\u003c\/li\u003e\n \u003cli\u003eInstalls in the lower-unit water pump assembly.\u003c\/li\u003e\n \u003cli\u003eSold as one impeller; the square drive key is not included.\u003c\/li\u003e\n \u003cli\u003eAftermarket replacement component, not a manufacturer-branded OEM part.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003ePart Number References\u003c\/h2\u003e\n \u003cp\u003eUse the following manufacturer and aftermarket references to help compare your original part. A matching number should be confirmed together with the engine model, horsepower, stroke, and year or serial-number requirements.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n\u003cth\u003eBrand or Source\u003c\/th\u003e\n\u003cth\u003eReference Number\u003c\/th\u003e\n\u003cth\u003eReference Type\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n\u003ctd\u003eManufacturer reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3B2650211M\u003c\/td\u003e\n\u003ctd\u003eManufacturer reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-8037481\u003c\/td\u003e\n\u003ctd\u003eManufacturer reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-803748-1\u003c\/td\u003e\n\u003ctd\u003eManufacturer reference variation\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e8037481\u003c\/td\u003e\n\u003ctd\u003eReference number\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e8M0214945\u003c\/td\u003e\n\u003ctd\u003eReference number\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-8920\u003c\/td\u003e\n\u003ctd\u003eAftermarket reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOMC \/ Evinrude Johnson\u003c\/td\u003e\n\u003ctd\u003e5040525\u003c\/td\u003e\n\u003ctd\u003eAdditional reference listed in company data\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3086\u003c\/td\u003e\n\u003ctd\u003eCatalog cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCEF\u003c\/td\u003e\n\u003ctd\u003e500344\u003c\/td\u003e\n\u003ctd\u003eCatalog cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-45210\u003c\/td\u003e\n\u003ctd\u003eCatalog cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe fitment below combines the exact company product records with compatible catalog applications. It is not an exhaustive list of every engine variation. Confirm the complete model designation and serial-number range for your engine before installation.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eEngine or Model Family\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003cth\u003eFitment Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8 HP and 9.9 HP, including 209 cc models\u003c\/td\u003e\n\u003ctd\u003e8\/9.9 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-8037481; 47-803748-1\u003c\/td\u003e\n\u003ctd\u003eCompany-listed Mercury fitment. Confirm the exact model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM6\/M8\/M9.8B\u003c\/td\u003e\n\u003ctd\u003e6\/8\/9.8 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n\u003ctd\u003eCatalog applications include model years 2013–2022; exact serial conditions may vary.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6\/MFS8\/MFS9.8 and MFS8\/MFS9.8A3\u003c\/td\u003e\n\u003ctd\u003e6\/8\/9.8 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n\u003ctd\u003eCompany-listed MFS8\/MFS9.8 fitment; catalog applications include multiple model-year variants.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSelected 6\/8\/9.8 HP outboards sharing the listed application\u003c\/td\u003e\n\u003ctd\u003e6\/8\/9.8 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n\u003ctd\u003eCompany-listed Nissan\/Tohatsu application. Verify the original impeller and model details.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003ch2\u003eTechnical Information\u003c\/h2\u003e\n \u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n \u003cdd\u003eWater pump impeller\u003c\/dd\u003e\n \u003cdt\u003eProduct Construction\u003c\/dt\u003e\n \u003cdd\u003eRubber impeller with a driveshaft hub\u003c\/dd\u003e\n \u003cdt\u003eInstallation Location\u003c\/dt\u003e\n \u003cdd\u003eLower-unit water pump assembly\u003c\/dd\u003e\n \u003cdt\u003eQuantity\u003c\/dt\u003e\n \u003cdd\u003eOne impeller\u003c\/dd\u003e\n \u003cdt\u003eDrive Key\u003c\/dt\u003e\n \u003cdd\u003eNot included; reuse or replace the key separately if required by the engine manufacturer\u003c\/dd\u003e\n \u003cdt\u003eBrand Status\u003c\/dt\u003e\n \u003cdd\u003eAftermarket replacement component\u003c\/dd\u003e\n \u003c\/dl\u003e\n\n \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e1 x Water pump impeller\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e square drive key, water pump housing, gaskets, seals, or other lower-unit service parts.\u003c\/p\u003e\n\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eRefer to the engine service manual and place the engine in a safe, stable position before beginning work.\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery or ignition power as appropriate and prevent accidental starting.\u003c\/li\u003e\n \u003cli\u003eRemove the lower unit according to the manufacturer's procedure.\u003c\/li\u003e\n \u003cli\u003eOpen the water pump housing and remove the old impeller. Note the position of the drive key and the direction of the vanes.\u003c\/li\u003e\n \u003cli\u003eInspect the housing, wear plate, seals, and drive key for wear or damage. Replace damaged parts before reassembly.\u003c\/li\u003e\n \u003cli\u003eInstall the correct key if required, then fit the new impeller onto the driveshaft. Use a suitable lubricant recommended for water-pump service.\u003c\/li\u003e\n \u003cli\u003eReinstall the water pump housing and any gaskets or seals in the correct positions.\u003c\/li\u003e\n \u003cli\u003eReattach the lower unit and tighten all fasteners to the service-manual specifications.\u003c\/li\u003e\n \u003cli\u003eRun the engine only in an appropriate test tank or in the water. Confirm a steady cooling-water tell-tale stream and check for overheating or leaks.\u003c\/li\u003e\n \u003c\/ol\u003e\n\n \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n \u003cp\u003eCompare your original impeller or service-manual number with the references listed above, then verify the complete engine brand, model, horsepower, stroke, year, and serial-number range. Do not rely on horsepower alone.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat are the signs of a worn impeller?\u003c\/summary\u003e\n \u003cp\u003eCommon signs include a weak or intermittent tell-tale stream, overheating, reduced cooling-water flow, cracked or stiff vanes, missing vane material, or an impeller that has taken a permanent set.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eDoes this product include the square key?\u003c\/summary\u003e\n \u003cp\u003eNo. The company product record identifies this as a single impeller, not a kit. The drive key is not included and must be reused or sourced separately when required.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n \u003cp\u003eNo. This is an aftermarket replacement impeller. The manufacturer and aftermarket numbers shown on this page are reference numbers used for fitment comparison.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow often should an impeller be replaced?\u003c\/summary\u003e\n \u003cp\u003eFollow the maintenance interval in your engine manufacturer's service manual. Inspect the impeller regularly and replace it sooner if the engine has been operated in sandy, silty, or debris-filled water or if cooling-water flow declines.\u003c\/p\u003e\n \u003c\/details\u003e\n\n \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eConfirm the exact engine application before purchase and installation.\u003c\/li\u003e\n \u003cli\u003eKeep horsepower, stroke, model, year, and serial-number conditions together when checking compatibility.\u003c\/li\u003e\n \u003cli\u003eDo not operate an outboard without adequate cooling-water supply.\u003c\/li\u003e\n \u003cli\u003eReplace damaged gaskets, seals, wear plates, or drive keys as needed during water-pump service.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended if you are unfamiliar with lower-unit or water-pump service.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical replacement components for routine outboard maintenance and repair.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and fitment information are provided to help you compare the original part.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eValue for Maintenance\u003c\/strong\u003e — Aftermarket components for keeping essential marine systems in service.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723979886907,"sku":"17IT006","price":14.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17IT0061_d97e4bfa-c23b-43ff-9164-cbf5578e8c07.jpg?v=1763039189"},{"product_id":"water-pump-impeller-fits-mercury-mariner-8-9-9-hp-4-stroke-6-8-9-8-hp-2-stroke-replaces-47-8037481-3b2-65021-1","title":"Water Pump Impeller – Fits Tohatsu\/Nissan 6, 8 \u0026 9.8 HP Outboards (Replaces 3B2-65021-1, CEF 500344)","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td {\n padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n }\n table.ss-table th {\n white-space:nowrap;\n word-break:normal;\n letter-spacing:normal;\n font-weight:600;\n background:#f8fafc;\n }\n @media (max-width:480px){\n table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis high-quality \u003cstrong\u003ewater pump impeller\u003c\/strong\u003e is designed for selected Tohatsu and Nissan 6, 8, and 9.8 HP outboard engines. It replaces the original Tohatsu\/Nissan reference \u003cstrong\u003e3B2-65021-1\u003c\/strong\u003e and is matched to the CEF 500344 impeller specification for reliable water circulation through the outboard cooling system.\u003c\/p\u003e\n\u003cp\u003eThe impeller is installed in the lower-unit water pump assembly. Regular inspection and timely replacement help maintain cooling-water flow and reduce the risk of overheating caused by worn, cracked, or damaged impeller blades.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket replacement water pump impeller for selected small outboards.\u003c\/li\u003e\n\u003cli\u003eApplicable to the 6, 8, and 9.8 HP impeller application shown in the compatibility information below.\u003c\/li\u003e\n\u003cli\u003eDesigned for the lower-unit water pump assembly.\u003c\/li\u003e\n\u003cli\u003eVerify the engine model, stroke, year, serial number, and original impeller dimensions before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThese are manufacturer and aftermarket reference numbers associated with this impeller application. They are provided for identification and cross-reference purposes only.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n \u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCEF\u003c\/td\u003e\n \u003ctd\u003e500344\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSierra\u003c\/td\u003e\n \u003ctd\u003e18-8920\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eParsun\u003c\/td\u003e\n \u003ctd\u003ePAF8-04000200\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eFitment must be confirmed against the complete engine identification information. Horsepower alone is not sufficient because water-pump components can vary by model family, stroke, year, and serial-number range.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel or Application\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eOEM Reference\u003c\/th\u003e\n \u003cth\u003eNotes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eSelected 6, 8, and 9.8 HP models\u003c\/td\u003e\n \u003ctd\u003e6 \/ 8 \/ 9.8\u003c\/td\u003e\n \u003ctd\u003eConfirm for exact engine\u003c\/td\u003e\n \u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n \u003ctd\u003eMatch the original impeller and engine identification before purchase.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS8 \/ MFS9.8 applications\u003c\/td\u003e\n \u003ctd\u003e8 \/ 9.8\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n \u003ctd\u003eConfirm the precise model and serial-number range.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNissan\u003c\/td\u003e\n \u003ctd\u003eSelected engines sharing the 3B2-65021-1 application\u003c\/td\u003e\n \u003ctd\u003e6 \/ 8 \/ 9.8\u003c\/td\u003e\n \u003ctd\u003eConfirm for exact engine\u003c\/td\u003e\n \u003ctd\u003e3B2-65021-1\u003c\/td\u003e\n \u003ctd\u003eUse the original part number and dimensions for final verification.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eParsun\u003c\/td\u003e\n \u003ctd\u003eSelected F6, F8, and F9.8 applications\u003c\/td\u003e\n \u003ctd\u003e6 \/ 8 \/ 9.8\u003c\/td\u003e\n \u003ctd\u003eConfirm for exact engine\u003c\/td\u003e\n \u003ctd\u003ePAF8-04000200\u003c\/td\u003e\n \u003ctd\u003eAftermarket cross-reference; verify against the engine and old impeller.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n \u003cdd\u003eWater pump impeller\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eReplaceable component in the lower-unit water pump assembly\u003c\/dd\u003e\n \u003cdt\u003eMaterial\u003c\/dt\u003e\n \u003cdd\u003eNeoprene rubber with a molded hub\u003c\/dd\u003e\n \u003cdt\u003eOuter Diameter\u003c\/dt\u003e\n \u003cdd\u003eApproximately 40 mm\u003c\/dd\u003e\n \u003cdt\u003eHub Diameter\u003c\/dt\u003e\n \u003cdd\u003eApproximately 18 mm\u003c\/dd\u003e\n \u003cdt\u003eInner Shaft Opening\u003c\/dt\u003e\n \u003cdd\u003eApproximately 12.1 mm; compare with the original impeller before installation\u003c\/dd\u003e\n \u003cdt\u003eReference Specification\u003c\/dt\u003e\n \u003cdd\u003eCEF 500344 \/ Tohatsu 3B2-65021-1 application\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n \u003cdd\u003e1 year, subject to the applicable supplier terms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Water pump impeller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA drive key, gasket, housing, wear plate, and other water-pump components are not included unless specifically shown or stated in the order details.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the battery or otherwise disable the engine to prevent accidental starting.\u003c\/li\u003e\n\u003cli\u003ePlace a drain pan under the lower unit and remove the gear-oil drain and fill screws if lower-unit removal requires draining the gearcase.\u003c\/li\u003e\n\u003cli\u003eRemove the fasteners securing the lower unit to the mid-section and carefully lower the gearcase.\u003c\/li\u003e\n\u003cli\u003eRemove the water-pump housing cover to expose the impeller.\u003c\/li\u003e\n\u003cli\u003eRemove the old impeller and drive key if fitted. Note the key position and the direction in which the original blades were folded.\u003c\/li\u003e\n\u003cli\u003eClean debris and corrosion from the impeller housing and inspect the housing and wear plate for grooves, distortion, or other damage.\u003c\/li\u003e\n\u003cli\u003eInstall the original or correctly specified drive key, then fit the new impeller over the shaft.\u003c\/li\u003e\n\u003cli\u003eUse a suitable water-pump assembly lubricant during installation. Turn the driveshaft in the correct direction for the engine while seating the impeller blades.\u003c\/li\u003e\n\u003cli\u003eReinstall the water-pump housing and tighten its fasteners to the engine manufacturer’s specifications.\u003c\/li\u003e\n\u003cli\u003eReattach the lower unit, ensuring that the driveshaft, shift shaft, and water tube are properly aligned.\u003c\/li\u003e\n\u003cli\u003eRefill the gearcase with the specified marine gear oil if it was drained, following the engine manufacturer’s procedure.\u003c\/li\u003e\n\u003cli\u003eRun the engine only with an adequate water supply and confirm a strong, steady tell-tale stream before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I confirm this impeller fits my exact engine?\u003c\/summary\u003e\n\u003cp\u003eMatch the complete engine model, year, serial number, stroke, and original impeller reference. Also compare the old impeller’s outer diameter, hub, shaft opening, and drive-key arrangement. The 3B2-65021-1 application is associated with selected Tohatsu\/Nissan 6, 8, and 9.8 HP engines, but not every engine in those horsepower classes uses the same impeller.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\n\u003cp\u003eCommon signs include a weak or missing tell-tale stream, an overheating warning, rising engine temperature, damaged or missing blades, or a rubber impeller that has become brittle or deformed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow often should I replace the impeller?\u003c\/summary\u003e\n\u003cp\u003eInspect the impeller regularly and replace it according to the engine manufacturer’s maintenance schedule. Frequent use in saltwater, sand, silt, or polluted water can shorten service life and may require more frequent inspection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the drive key included?\u003c\/summary\u003e\n\u003cp\u003eNo drive key is included with this impeller listing unless the order details specifically state otherwise. Reuse the correct serviceable key or obtain the properly specified replacement key separately.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy does the engine still overheat after replacing the impeller?\u003c\/summary\u003e\n\u003cp\u003eCheck the blade orientation, drive key, water-pump housing, wear plate, water-intake passages, water tube, thermostat, and cooling passages. A damaged housing or blocked cooling system can prevent proper water circulation even when the impeller is new.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n\u003cp\u003eThis is an aftermarket replacement impeller. The listed manufacturer and aftermarket numbers are reference numbers used to help identify the intended application; they do not indicate that this product is manufactured by Tohatsu, Nissan, CEF, Sierra, or Parsun.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow fast is shipping and what does it cost?\u003c\/summary\u003e\n\u003cp\u003eTypical transit is 5–15 days. Standard shipping is free to most regions, with expedited options available at checkout where applicable.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n\u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use, subject to the applicable supplier terms. Returns are accepted within the standard return window for unused items in their original condition. Contact support for current policy details and return instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the exact engine model, year, serial number, stroke, and original impeller dimensions before ordering.\u003c\/li\u003e\n\u003cli\u003eDo not rely on horsepower alone to determine fitment.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended if you are unfamiliar with lower-unit or water-pump service.\u003c\/li\u003e\n\u003cli\u003eNever run an outboard without an adequate cooling-water supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts selected for dependable service in real-world conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery is available to most regions, with typical transit of 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing with attention to material quality and production consistency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723979952443,"sku":"24KM102-QM","price":19.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM102-QM.png?v=1763039192"},{"product_id":"water-pump-impeller-repair-kit-fits-mercury-tohatsu-8-9-8-9-9-hp-replaces-803750a03-3b2-87322-2","title":"Water Pump Impeller Repair Kit – Fits Mercury \u0026 Tohatsu 8\/9.8\/9.9 HP (Replaces 803750A03, 3B2-87322-2)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eRestore your outboard’s cooling system with this complete \u003cstrong\u003ewater pump impeller repair kit\u003c\/strong\u003e for selected Mercury, Tohatsu, and Nissan 8–9.9 HP outboards. The kit is intended for Mercury 8–9.9 HP 209cc 4-stroke models and selected Tohatsu and Nissan 8–9.8 HP outboards, including MFS8, MFS9.8, NSF8, and NSF9.8 series applications. Always compare your engine model, stroke, serial number, and original part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThis kit is listed as an aftermarket replacement for Mercury references \u003cstrong\u003e46-803750A03\u003c\/strong\u003e, \u003cstrong\u003e803750A03\u003c\/strong\u003e, \u003cstrong\u003e80375A03\u003c\/strong\u003e, \u003cstrong\u003e803748Q01\u003c\/strong\u003e, and \u003cstrong\u003e803748K01\u003c\/strong\u003e. Tohatsu and Nissan legacy references include \u003cstrong\u003e3B2-87322-0\u003c\/strong\u003e, \u003cstrong\u003e3B2-87322-1\u003c\/strong\u003e, and \u003cstrong\u003e3B2-87322-2\u003c\/strong\u003e, with modern references including \u003cstrong\u003e3B2873220M\u003c\/strong\u003e, \u003cstrong\u003e3B2873221M\u003c\/strong\u003e, and \u003cstrong\u003e3B2873222M\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete water pump service kit for the listed applications.\u003c\/li\u003e\n\u003cli\u003eMarine-grade CR-neoprene impeller with nylon hub.\u003c\/li\u003e\n\u003cli\u003eIncludes the wear plate, insert cup, gaskets, driveshaft pin, bolts, and washers shown in the package list.\u003c\/li\u003e\n\u003cli\u003eDesigned as a direct replacement when the listed engine and part-number conditions match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstyle\u003e\n.ss-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}\ntable.ss-table{width:100%;border-collapse:collapse;min-width:640px}\ntable.ss-table th,table.ss-table td{padding:10px 12px;border:1px solid #e5e7eb;text-align:left;vertical-align:top}\ntable.ss-table th{white-space:nowrap;word-break:normal;letter-spacing:normal;font-weight:600;background:#f8fafc}\n@media(max-width:480px){table.ss-table th,table.ss-table td{padding:8px 10px;font-size:14px}}\n\u003c\/style\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following references are provided for cross-reference purposes. A matching number should still be checked against the complete engine application.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eSuperseded By\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e46-803750A03\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003ePrimary replacement reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e46-803750A03\u003c\/td\u003e\n\u003ctd\u003eAlternate reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e80375A03\u003c\/td\u003e\n\u003ctd\u003e46-803750A03\u003c\/td\u003e\n\u003ctd\u003eAlternate reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803748Q01\u003c\/td\u003e\n\u003ctd\u003e46-803750A03\u003c\/td\u003e\n\u003ctd\u003eAlternate reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803748K01\u003c\/td\u003e\n\u003ctd\u003e46-803750A03\u003c\/td\u003e\n\u003ctd\u003eAlternate reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-0\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-1\u003c\/td\u003e\n\u003ctd\u003eLegacy reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-1\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-2\u003c\/td\u003e\n\u003ctd\u003eSuperseded reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-2\u003c\/td\u003e\n\u003ctd\u003e3B2873222M\u003c\/td\u003e\n\u003ctd\u003eCurrent-style reference shown for cross-reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eCompatibility depends on the complete engine configuration. For Mercury applications, verify the engine serial number against the applicable range. For Tohatsu and Nissan applications, verify the exact model suffix and stroke before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Mercury Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eSerial \/ Year Range\u003c\/th\u003e\n\u003cth\u003eOEM Reference\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8 HP\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0N014717–0N055109\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e209cc models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8 HP\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0N027903–0N055109\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e209cc models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8 HP\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0N055110 and up\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e209cc models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8 HP\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0P325500 and up\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e209cc models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8 HP\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0R042475 and up\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e209cc models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.8 HP\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0N007788–0N055109\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.8 HP\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0N055110 and up\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9 HP\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0N260037 and up\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9 HP\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0P325500 and up\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9 HP\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e0R042475 and up\u003c\/td\u003e\n\u003ctd\u003e803750A03\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe cross-reference list also includes selected Tohatsu and Nissan 2-stroke and 4-stroke models. The model, stroke, and applicable part-number conditions must match together.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Tohatsu and Nissan Engine Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Reference\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM8B\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-0\u003c\/td\u003e\n\u003ctd\u003eLegacy reference; verify replacement number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.8B\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-0\u003c\/td\u003e\n\u003ctd\u003eLegacy reference; verify replacement number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS8A \/ MFS8A2 \/ MFS8A3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2014 where applicable\u003c\/td\u003e\n\u003ctd\u003e3B2873222M\u003c\/td\u003e\n\u003ctd\u003eVerify exact suffix.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.8A \/ MFS9.8A2 \/ MFS9.8A3\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2014 where applicable\u003c\/td\u003e\n\u003ctd\u003e3B2873222M\u003c\/td\u003e\n\u003ctd\u003eVerify exact suffix.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS8B\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-0\u003c\/td\u003e\n\u003ctd\u003eLegacy reference; verify replacement number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS9.8B\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e3B2-87322-0\u003c\/td\u003e\n\u003ctd\u003eLegacy reference; verify replacement number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF8A \/ NSF8A2 \/ NSF8A3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2014 where applicable\u003c\/td\u003e\n\u003ctd\u003e3B2873222M\u003c\/td\u003e\n\u003ctd\u003eVerify exact suffix.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF9.8A \/ NSF9.8A2 \/ NSF9.8A3\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2014 where applicable\u003c\/td\u003e\n\u003ctd\u003e3B2873222M\u003c\/td\u003e\n\u003ctd\u003eVerify exact suffix.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater pump impeller repair kit\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement when application conditions match\u003c\/dd\u003e\n\u003cdt\u003eHousing Components\u003c\/dt\u003e\n\u003cdd\u003eStainless steel wear plate and insert cup\u003c\/dd\u003e\n\u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eMarine-grade CR-neoprene with nylon hub\u003c\/dd\u003e\n\u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.14 kg (0.31 lb)\u003c\/dd\u003e\n\u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n\u003cdt\u003eInternal Hub \/ Shaft Size\u003c\/dt\u003e\n\u003cdd\u003e12 mm (0.472 in)\u003c\/dd\u003e\n\u003cdt\u003eOuter Diameter\u003c\/dt\u003e\n\u003cdd\u003e40.3 mm (1.587 in)\u003c\/dd\u003e\n\u003cdt\u003eImpeller Height \/ Thickness\u003c\/dt\u003e\n\u003cdd\u003e18 mm (0.709 in)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Water pump impeller (8037481)\u003c\/li\u003e\n\u003cli\u003e1 × Driveshaft pin (9521811)\u003c\/li\u003e\n\u003cli\u003e1 × Insert cup (8037511)\u003c\/li\u003e\n\u003cli\u003e1 × Wear plate (8037531)\u003c\/li\u003e\n\u003cli\u003e1 × Gasket (8M0072139)\u003c\/li\u003e\n\u003cli\u003e1 × Gasket (8M0072138)\u003c\/li\u003e\n\u003cli\u003e1 × Gasket (8M0072137)\u003c\/li\u003e\n\u003cli\u003e4 × Bolts and washers (879194305)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the spark-plug wire and place the outboard in neutral.\u003c\/li\u003e\n\u003cli\u003eRemove the lower-unit bolts and carefully separate the lower unit from the upper casing.\u003c\/li\u003e\n\u003cli\u003eRemove the water-pump housing to access the existing impeller.\u003c\/li\u003e\n\u003cli\u003eNote the existing vane orientation before removing the impeller and driveshaft pin.\u003c\/li\u003e\n\u003cli\u003eClean the housing, wear plate, insert cup, and sealing surfaces. Remove old gasket material and debris.\u003c\/li\u003e\n\u003cli\u003eInstall the new gaskets, wear plate, and insert cup in the correct positions.\u003c\/li\u003e\n\u003cli\u003eInstall the new impeller while turning the driveshaft in the correct direction so the vanes seat properly.\u003c\/li\u003e\n\u003cli\u003eReassemble the water-pump housing and tighten the fasteners to the manufacturer’s specifications.\u003c\/li\u003e\n\u003cli\u003eReinstall the lower unit, confirming proper alignment of the water tube and driveshaft.\u003c\/li\u003e\n\u003cli\u003eAfter installation, run the engine according to the service-manual procedure and confirm a normal cooling-water telltale stream.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this kit fits my engine?\u003c\/summary\u003e\u003cp\u003eMatch the engine brand, exact model, horsepower, stroke, serial number or year range, and original part number against the information above. A listed reference such as 46-803750A03 or 3B2-87322-2 should be checked together with the complete engine application.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\u003cp\u003eTypical symptoms include a weak or missing telltale stream, overheating warnings, and reduced cooling performance. The removed impeller may have cracked, brittle, missing, distorted, or glazed vanes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\u003cp\u003eReplacement intervals depend on the engine manufacturer, operating hours, water conditions, and inspection results. Saltwater, sand, silt, and extended storage can increase wear, so inspect and replace the impeller according to the service manual.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs installation different on a 2-stroke and 4-stroke model?\u003c\/summary\u003e\u003cp\u003eThe basic lower-unit water-pump service is similar, but disassembly steps, fastener locations, torque values, and alignment procedures can vary. Use the service manual for the specific engine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat happens if the impeller vanes are installed incorrectly?\u003c\/summary\u003e\u003cp\u003eIncorrect vane orientation can reduce water flow and may cause rapid overheating. Install the impeller in the orientation specified by the engine service manual and rotate the driveshaft as required during assembly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for an aftermarket replacement kit intended to match the listed applications and reference numbers. It is not supplied as an OEM-branded component.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow quickly is the order shipped?\u003c\/summary\u003e\u003cp\u003eTypical transit is 5–15 days for standard worldwide shipping. Available expedited options and final delivery estimates are shown at checkout where applicable.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eThe kit is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the applicable standard return period when the item is unused and in its original condition. Contact support for order-specific instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the engine model, stroke, serial number or year range, and original part before ordering.\u003c\/li\u003e\n\u003cli\u003eCompare the supplied components with the original parts before installation. Do not install the kit if the dimensions or components differ.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eFollow the engine manufacturer’s service manual for torque values, seal orientation, alignment, and testing.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when lower-unit service experience or the correct service information is unavailable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards:\u003c\/strong\u003e Marine replacement parts selected for dependable performance in real-world service conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment:\u003c\/strong\u003e Standard delivery is available to most regions, with delivery estimates shown at checkout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value:\u003c\/strong\u003e Practical aftermarket replacement parts at competitive pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723983884603,"sku":"24KM317-QM","price":42.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM317-QM.png?v=1763039383"},{"product_id":"carburetor-assembly-fits-mercury-mariner-8-9-9hp-4-stroke-tohatsu-8-9-8hp-replaces-895110t11-3303-8m0104462","title":"Carburetor Assembly for Mercury\/Mariner 8–9.9 HP 4-Stroke and Tohatsu 8–9.8 HP Outboards","description":"\u003csection\u003e\n\u003cstyle\u003e\n .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e is listed as a replacement for selected Mercury and Mariner 8 HP and 9.9 HP four-stroke outboard engines, as well as mechanically equivalent Tohatsu 8 HP and 9.8 HP four-stroke models. Confirm the engine model, year, serial-number range, and existing carburetor before ordering.\u003c\/p\u003e\n\u003cp\u003eThe listed cross-references include Mercury\/Mariner numbers \u003cstrong\u003e3303-895110T01\u003c\/strong\u003e, \u003cstrong\u003e3303-895110T11\u003c\/strong\u003e, and \u003cstrong\u003e3303-8M0104462\u003c\/strong\u003e, together with additional Mercury reference numbers shown in the matrix below. The Tohatsu reference listed for the corresponding applications is \u003cstrong\u003e3DP-03100-2\u003c\/strong\u003e. Reference numbers are provided for identification and should be compared with the number on the original component.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eReplacement carburetor assembly for selected marine gasoline engines.\u003c\/li\u003e\n \u003cli\u003eDesigned for the listed four-stroke Mercury, Mariner, and Tohatsu applications.\u003c\/li\u003e\n \u003cli\u003eIncludes fuel and linkage connection points corresponding to the listed applications.\u003c\/li\u003e\n \u003cli\u003eAftermarket replacement component; not a genuine OEM part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following numbers as cross-reference leads. Always verify the complete engine application and the original component before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n \u003ctd\u003e3303-895110T01 \/ 3303-895110T11 \/ 3303-8M0104462 \/ 1300-8M0167272 \/ 8M0173875 \/ 8M0176126\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e3DP-03100-2\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe applications below reflect the listed compatibility information. Model designations, serial ranges, and component revisions can vary, so compare the engine identification label and original carburetor before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Compatible Engine Models\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYear \/ Range\u003c\/th\u003e\n \u003cth\u003eReference Part No.\u003c\/th\u003e\n \u003cth\u003eApplication Notes\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8 HP\u003c\/td\u003e\n \u003ctd\u003e8\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eListed for 2006 and later applications\u003c\/td\u003e\n \u003ctd\u003e3303-895110T01 \/ 3303-895110T11\u003c\/td\u003e\n \u003ctd\u003eListed serial references include 0P325500 and later, and 0R676745 and earlier. Verify the complete serial number.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e9.9 HP\u003c\/td\u003e\n \u003ctd\u003e9.9\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eListed for 2006 and later applications\u003c\/td\u003e\n \u003ctd\u003e3303-895110T01 \/ 3303-895110T11\u003c\/td\u003e\n \u003ctd\u003eListed serial references include 0R042475 and later, and 0P325500 and later. Verify the complete serial number.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e8 HP Bodensee\u003c\/td\u003e\n \u003ctd\u003e8\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eListed for 2006 and later applications\u003c\/td\u003e\n \u003ctd\u003e3303-895110T01 \/ 3303-895110T11\u003c\/td\u003e\n \u003ctd\u003eSpecial emission-model application; confirm the original component number.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMariner\u003c\/td\u003e\n \u003ctd\u003e8 HP\u003c\/td\u003e\n \u003ctd\u003e8\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eListed for 2006 and later applications\u003c\/td\u003e\n \u003ctd\u003e3303-895110T01 \/ 3303-895110T11\u003c\/td\u003e\n \u003ctd\u003eConfirm model and serial number before ordering.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMariner\u003c\/td\u003e\n \u003ctd\u003e9.9 HP\u003c\/td\u003e\n \u003ctd\u003e9.9\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eListed for 2006 and later applications\u003c\/td\u003e\n \u003ctd\u003e3303-895110T01 \/ 3303-895110T11\u003c\/td\u003e\n \u003ctd\u003eConfirm model and serial number before ordering.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS8A \/ MFS8B\u003c\/td\u003e\n \u003ctd\u003e8\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCheck the corresponding Mercury-equivalent application\u003c\/td\u003e\n \u003ctd\u003e3DP-03100-2\u003c\/td\u003e\n \u003ctd\u003eVerify the original carburetor and complete engine identification.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS9.8A \/ MFS9.8B\u003c\/td\u003e\n \u003ctd\u003e9.8\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eCheck the corresponding Mercury-equivalent application\u003c\/td\u003e\n \u003ctd\u003e3DP-03100-2\u003c\/td\u003e\n \u003ctd\u003eVerify the original carburetor and complete engine identification.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n \u003cdd\u003eCarburetor assembly\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n \u003cdd\u003eSelected Mercury, Mariner, and Tohatsu four-stroke outboard engines listed above\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n \u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eReplacement installation; fit must be confirmed by model, serial number, and original part comparison\u003c\/dd\u003e\n \u003cdt\u003eConnection Points\u003c\/dt\u003e\n \u003cdd\u003eFuel inlet and throttle\/linkage connection points for the listed applications\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n \u003cdd\u003eDie-cast aluminum, as listed\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n \u003cdd\u003eSilver \/ metallic appearance, as listed\u003c\/dd\u003e\n \u003cdt\u003eApproximate Weight\u003c\/dt\u003e\n \u003cdd\u003e0.58 kg (1.28 lb), as listed\u003c\/dd\u003e\n \u003cdt\u003ePart Classification\u003c\/dt\u003e\n \u003cdd\u003eAftermarket replacement component\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e1 × Carburetor assembly\u003c\/li\u003e\n \u003cli\u003eGaskets are not confirmed as included. Check the specific order contents before installation and obtain the correct replacement gasket if required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eConfirm the engine model, serial number, stroke, and original carburetor reference before beginning work.\u003c\/li\u003e\n \u003cli\u003eWork in a well-ventilated area away from flames, sparks, and other ignition sources.\u003c\/li\u003e\n \u003cli\u003eShut off the fuel supply and safely disconnect the fuel line from the carburetor.\u003c\/li\u003e\n \u003cli\u003eDisconnect the throttle and choke linkages, noting their original positions and routing.\u003c\/li\u003e\n \u003cli\u003eRemove the mounting nuts or bolts securing the original carburetor to the intake manifold.\u003c\/li\u003e\n \u003cli\u003eRemove the original carburetor and clean old gasket material from the mounting surface without damaging the manifold.\u003c\/li\u003e\n \u003cli\u003eInstall a new, application-correct gasket. Do not reuse a damaged or compressed gasket.\u003c\/li\u003e\n \u003cli\u003ePosition the replacement carburetor and tighten the fasteners evenly to the engine manufacturer's specified torque.\u003c\/li\u003e\n \u003cli\u003eReconnect the throttle and choke linkages and confirm that they move freely through their full range.\u003c\/li\u003e\n \u003cli\u003eReconnect and secure the fuel line, then inspect all connections for proper seating.\u003c\/li\u003e\n \u003cli\u003eTurn on the fuel supply and check carefully for leaks before starting the engine.\u003c\/li\u003e\n \u003cli\u003eStart and test the engine in accordance with the manufacturer's service procedures. Adjustments, if required, should be performed by a qualified technician.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n \u003csummary\u003eHow do I confirm that this carburetor fits my outboard?\u003c\/summary\u003e\n \u003cp\u003eVerify that the engine is a listed 8 HP or 9.9 HP Mercury or Mariner four-stroke, or a listed 8 HP or 9.8 HP Tohatsu four-stroke. Then compare the complete model and serial number, the original carburetor, mounting arrangement, linkage, and fuel connections with the information above. A horsepower match alone does not confirm fitment.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat symptoms can indicate a carburetor problem?\u003c\/summary\u003e\n \u003cp\u003eCommon symptoms may include difficult starting, unstable idle, stalling at low speed, hesitation during acceleration, poor fuel economy, black exhaust smoke, or fuel leakage. These symptoms can also be caused by fuel contamination, blocked passages, ignition faults, incorrect adjustment, or other engine problems.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eAre gaskets included?\u003c\/summary\u003e\n \u003cp\u003eGaskets are not confirmed as part of the package contents for this listing. Check the order contents before installation and purchase the correct application-specific gasket separately if one is not supplied.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eIs this a genuine OEM part?\u003c\/summary\u003e\n \u003cp\u003eNo. This listing is for an aftermarket replacement carburetor assembly. The OEM and manufacturer reference numbers are provided only to help identify the intended application.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat are the shipping times and costs?\u003c\/summary\u003e\n \u003cp\u003eAvailable shipping methods, delivery estimates, and costs depend on the destination and are shown at checkout. Do not rely on a shipping estimate until it is displayed for your address.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n \u003cp\u003eWarranty coverage and return eligibility are governed by the applicable order terms. Contact customer support before returning a part, and retain the order information and installation details. The part should not be modified or installed on an unconfirmed application.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eCompare the original part, mounting points, linkage connections, fuel connection, and reference number before purchase.\u003c\/li\u003e\n \u003cli\u003eDo not assume compatibility solely from horsepower, brand, or a similar-looking component.\u003c\/li\u003e\n \u003cli\u003eUse fresh, clean fuel and follow the engine manufacturer's fuel-system safety procedures.\u003c\/li\u003e\n \u003cli\u003eFuel-system work should be performed by a qualified technician when the correct service procedure or adjustment is uncertain.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement component, not an Original Equipment Manufacturer part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Replacement components are selected for listed marine applications and should be matched carefully to the engine.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Support\u003c\/strong\u003e — Use the model, year, serial number, and original component number when confirming fitment.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOrder Assistance\u003c\/strong\u003e — Contact support with complete engine identification details if the application is unclear before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723983917371,"sku":"41-BZSU-L7IJ","price":58.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/41-BZSU-L7IJ.png?v=1763039385"}],"url":"https:\/\/seasierra.com\/collections\/tohatsu-4-stroke-9-9hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}