{"title":"Tohatsu 6HP 4-Stroke Outboard Marine Engine","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e5e5; border-radius:8px;\"\u003e\n \u003cp\u003eThis page is focused on Tohatsu 4‑Stroke 6 HP outboard engines. Use it to find compatible parts and practical service information, including maintenance intervals, common replacement items, and troubleshooting guidance. You can also browse our main Tohatsu collection. Scroll to the bottom of the page 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.\u003c\/p\u003e\n \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0b5; 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=\"margin-top:24px;\"\u003e\n \u003ch2\u003eHow to Identify Your 6 HP Model\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eNameplate location: Look for the model\/serial label on the transom clamp bracket or swivel bracket. The same code is often stamped on a small plate near the mounting clamp.\u003c\/li\u003e\n \u003cli\u003eReading the model code: Examples include MFS6DSS (15\" shaft) and MFS6DSL (20\" shaft). “UL” indicates 25\" ultra‑long shaft. “SP” denotes Sail Pro variants. Some codes (e.g., “DD”) indicate an internal fuel tank version.\u003c\/li\u003e\n \u003cli\u003e4‑Stroke identifiers: Oil fill and dipstick on the powerhead, manual recoil starter, and a front‑mounted shift lever are common cues for this generation.\u003c\/li\u003e\n \u003cli\u003eCharging system (if equipped): Sail Pro and certain models include a 12V charging lead and rectifier; look for a two‑wire charge plug or dedicated charging cable under the cowl.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"margin-top:24px;\"\u003e\n \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n \u003ch3\u003ePortable Single‑Cylinder 4‑Stroke Platform\u003c\/h3\u003e\n \u003ctable style=\"width:100%; border-collapse:collapse;\"\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 #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCarbureted 4‑stroke, single‑cylinder portable outboard with tiller control and manual start; through‑prop exhaust; optional 12V charging (approx. 5A).\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eMFS6DSS\/MFS6DSL (short\/long); internal‑tank variants (e.g., MFS6DDS\/MFS6DDL); Sail Pro long and ultra‑long shaft (e.g., SP L\/UL) with high‑thrust prop.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eLightweight and easy to carry, very fuel efficient for small craft, quiet operation, and simple upkeep.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eNotes\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePropeller pitch range commonly 6–9\"; multiple shaft lengths available; many maintenance parts are shared across the 4\/5\/6 hp family—always verify by model code and serial.\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=\"margin-top:24px;\"\u003e\n \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n \u003cp\u003eIntervals below are general guidelines for typical use. Always follow your official service manual for procedures and specifications.\u003c\/p\u003e\n \u003ctable style=\"width:100%; border-collapse:collapse;\"\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 #f0f0f0;\"\u003eEngine oil (4‑Stroke)\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eUse marine FC‑W 10W‑30\/40; many 6 hp models have no external spin‑on filter. Warm engine first for a more complete drain.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect for water intrusion (milky oil) and metal shavings. Replace drain\/fill gaskets; reseal if contamination persists.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eSpark plugs\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect 50 hours; replace annually or as needed\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCheck gap and color; replace if fouled or worn. Carry a spare on board.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eFuel filter \/ inline filter\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery season or 100 hours\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eReplace more often if using portable tanks or if water\/debris is present. Consider a clear‑bowl pre‑filter for visibility.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 2–3 seasons (sooner in sandy\/weedy water)\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWeak telltale or overheat alarm are signs of wear. Renew housing and gaskets as needed.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eSacrificial anodes\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect often; replace when ~50% consumed\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEssential for corrosion protection, especially in brackish\/salt water. Keep paint off anode surfaces.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eThermostat inspection\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eTest every season; replace if sticking\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eOverheating with a good impeller often points to a faulty thermostat.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003ePropeller \u0026amp; hardware check\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect each trip; replace as needed\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eLook for dings and bent blades; confirm cotter pin is intact. Sail Pro uses a high‑thrust prop.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;\"\u003eCharging system (if equipped)\u003c\/td\u003e\n \u003ctd style=\"padding:8px;\"\u003eSeasonal output test\u003c\/td\u003e\n \u003ctd style=\"padding:8px;\"\u003eVerify 12V output and wiring integrity; replace rectifier\/regulator if no charge.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/rectifiers\"\u003eRectifiers\u003c\/a\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"margin-top:24px;\"\u003e\n \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine Service Kits – \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\u003eGearcase 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\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\u003ePropellers \u0026amp; Hardware – \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\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 \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"margin-top:24px;\"\u003e\n \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n \u003ctable style=\"width:100%; border-collapse:collapse;\"\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 #f0f0f0;\"\u003eWeak telltale or overheat alarm\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect intake screen for blockage; verify impeller condition; test thermostat.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eUse fresh fuel; check plug gap and condition; drain carb bowl; inspect inline filter for water.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plug, fuel filter, carburetor gasket\/kit, hoses\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCheck prop for damage or wrong pitch; inspect for air leaks on fuel line; confirm choke\/enrichment working.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePropeller, fuel pump, fuel filter, hoses\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eChange gear oil and inspect for water; pressure test and reseal if needed.\u003c\/td\u003e\n \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eLower unit seal kit, bearings, drain\/fill gaskets\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:8px;\"\u003eNo battery charging (SP\/charging models)\u003c\/td\u003e\n \u003ctd style=\"padding:8px;\"\u003eCheck rectifier connections and output; inspect charging lead and fuses.\u003c\/td\u003e\n \u003ctd style=\"padding:8px;\"\u003eRectifier\/regulator, charging cable, connectors\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=\"margin-top:24px;\"\u003e\n \u003ch2\u003eFAQs\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eAre parts interchangeable across different years or within the 4\/5\/6 hp family?\u003c\/summary\u003e\n \u003cp\u003eMany wear items (impellers, anodes, some gaskets) are shared across the small portable family, but changes by series and shaft length do exist. Always confirm using your exact model code and serial number.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n \u003cp\u003eAs a rule of thumb, replace every 2–3 seasons for light use, or sooner if operating in sand, silt, or weeds. Any weak telltale, overheat signal, or visible vane damage warrants an immediate replacement.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow often should lower unit gear oil be changed?\u003c\/summary\u003e\n \u003cp\u003eChange at least annually or every 100 hours. If you suspect submersion or see milky oil, change immediately and pressure test the gearcase to verify seal integrity.\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 code (e.g., MFS6DSS\/MFS6DSL), serial number, shaft length (S\/L\/UL), and whether the engine has an internal tank or charging system (SP). Clear photos of the nameplate and the part being replaced are also helpful.\u003c\/p\u003e\n \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"margin-top:24px; padding:16px; border:1px solid #e5e5e5; border-radius:8px;\"\u003e\n \u003cp\u003eReady to find parts by horsepower, year, and model? Browse our main Tohatsu collection for a wide range of compatible components.\u003c\/p\u003e\n \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0b5; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Tohatsu Outboard Parts\u003c\/a\u003e\n \u003cp style=\"margin-top:8px; color:#555;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and 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":"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":"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":"carburetor-fits-mercury-tohatsu-nissan-2-6-hp-replaces-3r1-03200-1-853720t25","title":"Aftermarket Carburetor for Mercury, Mariner, Tohatsu \u0026 Nissan 2–6 HP 4-Stroke Outboards – Replaces 3R1-03200-1, 853720T25","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 for Mercury, Mariner, Tohatsu, and Nissan 2–6 HP 4-stroke outboards\u003c\/strong\u003e is designed as a replacement for engines that use the applicable part numbers listed below. A properly matched replacement carburetor helps restore consistent fuel delivery, starting performance, idle quality, and throttle response.\u003c\/p\u003e\n\u003cp\u003eThis carburetor is listed as an interchange for Mercury part numbers \u003cstrong\u003e853720T25\u003c\/strong\u003e and \u003cstrong\u003e803819T03\u003c\/strong\u003e, and for Tohatsu and Nissan references \u003cstrong\u003e3R1-03200-1\u003c\/strong\u003e, \u003cstrong\u003e3AS-03200-0\u003c\/strong\u003e, and \u003cstrong\u003e3GV-03200-0\u003c\/strong\u003e. Confirm the number on your original carburetor and compare the mounting arrangement before ordering.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eAftermarket replacement for selected small 4-stroke outboard applications.\u003c\/li\u003e\n \u003cli\u003eDesigned for direct replacement where the original part number and configuration match.\u003c\/li\u003e\n \u003cli\u003eSupports consistent air-and-fuel delivery for normal engine operation.\u003c\/li\u003e\n \u003cli\u003eSuitable for gasoline-fueled outboard engines within the listed application range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references to help compare the replacement with your original carburetor. Part-number matching is recommended because model, production year, serial number, and configuration can affect fitment.\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 \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e853720T25\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference; also associated with 803819T03.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e803819T03\u003c\/td\u003e\n\u003ctd\u003eAdditional replacement reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference; also associated with 3AS-03200-0 and 3GV-03200-0.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3AS-03200-0\u003c\/td\u003e\n\u003ctd\u003eAdditional replacement reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3GV-03200-0\u003c\/td\u003e\n\u003ctd\u003eAdditional replacement 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 replacement is intended for selected \u003cstrong\u003e2–6 HP 4-stroke\u003c\/strong\u003e Mercury, Mariner, Tohatsu, and Nissan outboards. The application examples below are provided as a guide only. Verify the original carburetor part number, mounting pattern, linkage arrangement, fuel connections, and engine identification before purchase.\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 Application\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 \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eSelected small outboard applications\u003c\/td\u003e\n\u003ctd\u003e2–6 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e853720T25 \/ 803819T03\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number and configuration.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMF3.5\u003c\/td\u003e\n\u003ctd\u003e3.5 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number before ordering.\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 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNFS4\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNFS5\u003c\/td\u003e\n\u003ctd\u003e5 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number before ordering.\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 table does not establish fitment for every engine in a horsepower or model family. Year, serial-number range, carburetor design, and linkage configuration may vary. Do not use this part on a 2-stroke engine.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAftermarket carburetor assembly\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Mercury, Mariner, Tohatsu, and Nissan 2–6 HP 4-stroke outboards\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement where the original part number and configuration match\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eDirect-mount replacement design\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMetal alloy construction\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\/metallic\u003c\/dd\u003e\n \u003cdt\u003eReplacement References\u003c\/dt\u003e\n\u003cdd\u003e853720T25, 803819T03, 3R1-03200-1, 3AS-03200-0, and 3GV-03200-0\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\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e The mounting gasket and any other installation hardware are not included unless specifically shown or stated in the product package. Reuse of an old gasket is not recommended if it is worn, compressed, cracked, or damaged.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eTurn off the engine, allow it to cool, and follow the applicable service-manual safety procedures. Disconnect the fuel supply before beginning work.\u003c\/li\u003e\n \u003cli\u003eRemove the engine cowling and document the routing of all hoses, wires, and linkages before removing the original carburetor.\u003c\/li\u003e\n \u003cli\u003eDisconnect the throttle or choke linkage and fuel hose carefully. Prevent dirt from entering the intake or fuel system.\u003c\/li\u003e\n \u003cli\u003eRemove the mounting fasteners and old carburetor. Clean the mounting surface without allowing debris to enter the engine.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement using a suitable new gasket if required. Tighten the fasteners evenly to the engine manufacturer’s specified torque.\u003c\/li\u003e\n \u003cli\u003eReconnect every hose and linkage in its original position. Confirm that the throttle and choke operate freely without binding.\u003c\/li\u003e\n \u003cli\u003eReconnect the fuel supply, prime the system as applicable, and inspect for leaks before starting the engine.\u003c\/li\u003e\n \u003cli\u003eStart and test the engine in a safe, properly ventilated environment. Follow the manufacturer’s adjustment and break-in procedures if applicable.\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 carburetor may need replacement?\u003c\/summary\u003e\u003cp\u003eHard starting, unstable idle, stalling, poor acceleration, fuel leakage, or abnormal exhaust smoke can have several causes, including contaminated fuel, restricted passages, ignition problems, or incorrect adjustment. Diagnose the fuel and ignition systems before replacing the carburetor.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this carburetor fit a 2-stroke outboard?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for selected 4-stroke applications. It should not be installed on a 2-stroke engine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow can I confirm fitment?\u003c\/summary\u003e\u003cp\u003eCompare the number on your original carburetor with the listed references, then compare the mounting points, fuel connections, linkage, and overall appearance. Also verify the engine brand, model, horsepower, stroke, and any available serial-number information.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes the package include a mounting gasket?\u003c\/summary\u003e\u003cp\u003eNo. The package includes the carburetor assembly only. A suitable mounting gasket should be obtained separately when required.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill adjustment be required after installation?\u003c\/summary\u003e\u003cp\u003eAdjustment requirements depend on the engine and the replacement assembly. Follow the engine manufacturer’s service instructions, and do not change mixture or idle settings beyond the manufacturer’s specifications.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between an OEM and an aftermarket part?\u003c\/summary\u003e\u003cp\u003eThis is an aftermarket replacement, not an original manufacturer part. Confirm the part number and physical configuration before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow should the fuel system be maintained?\u003c\/summary\u003e\u003cp\u003eUse clean, fresh fuel, keep water and debris out of the fuel system, follow the engine manufacturer’s storage procedure, and inspect fuel lines and filters regularly. Stabilize or drain fuel as recommended for seasonal storage.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify the original part number and physical configuration before purchase.\u003c\/li\u003e\n \u003cli\u003eDo not rely on horsepower alone to determine compatibility; model, year, serial range, stroke, and configuration may affect fitment.\u003c\/li\u003e\n \u003cli\u003eUse the correct gasket and installation torque for your engine.\u003c\/li\u003e\n \u003cli\u003eCheck carefully for fuel leaks before operating the engine.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended if you are unfamiliar with outboard fuel systems.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement part, not an OEM component.\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 We provide replacement components for a range of recreational and commercial marine applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFitment-Focused Listings:\u003c\/strong\u003e Product references and application information are provided to help customers compare replacement parts with their original components.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSupport:\u003c\/strong\u003e If you are unsure about compatibility, compare your original part and engine identification information before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723790553403,"sku":"3R14BbxYGGG","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/3R14BbxYGGG.png?v=1763031866"},{"product_id":"carburetor-fits-mercury-mariner-2-6-hp-tohatsu-nissan-mfs-nfs-3-5-6-hp-4-stroke-outboards-replaces-3r1-03200-1-853720t25","title":"Carburetor for Mercury\/Mariner 2.5–6 HP and Tohatsu\/Nissan MFS\/NFS 3.5–6 HP 4-Stroke Outboards — Replaces 3R1-03200-1 and 853720T25","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\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket replacement \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e is designed for selected Mercury and Mariner 4-stroke outboards from 2.5 to 6 HP, as well as selected Tohatsu and Nissan MFS\/NFS 4-stroke models from 3.5 to 6 HP. It is intended to restore proper fuel metering and dependable engine operation when the original carburetor is worn, contaminated, damaged, or leaking.\u003c\/p\u003e\n\u003cp\u003eThis carburetor is listed as a replacement for several manufacturer part numbers, including Mercury\/Mariner 853720T25, 8M0053670, 803522T03, and Tohatsu\/Nissan 3R1-03200-1. Confirm the model, horsepower, stroke type, engine serial range, mounting arrangement, and part number of your original carburetor before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect OEM-style replacement for the listed applications.\u003c\/li\u003e\n\u003cli\u003eMetal die-cast housing designed for use in marine environments.\u003c\/li\u003e\n\u003cli\u003eHelps provide the correct air-fuel mixture for starting, idling, acceleration, and normal operation.\u003c\/li\u003e\n\u003cli\u003eVerify the original part and mounting details before installation; model and year variations may exist.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are listed as replacement or reference numbers for this carburetor. They are not the internal product identifier.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\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\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803522A04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e8M0053670\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e853720T25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e898103T51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e889246T10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3AS-03200-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3GV-03200-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eUse the following applications as a reference. Always compare the engine identification label and the existing carburetor before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\u003ctable class=\"ss-table\" aria-label=\"Mercury and Mariner 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\u003eReference Part No.\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF2.5\/2.5M\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e853720T25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF3.5\/3.5M\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e853720T25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF4\/4M\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803522T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF5\/5M\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803522T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF6\/6M\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803522T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eSelected Tohatsu and Nissan MFS\/NFS 4-stroke outboards in the 3.5–6 HP range are also listed for this replacement. The model and part-number references below should be checked against the engine identification and original component.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\u003ctable class=\"ss-table\" aria-label=\"Tohatsu and Nissan 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\u003eReference Part No.\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMF3.5\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\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\u003e3R1-03200-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNFS4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNFS5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\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 4-stroke marine outboards\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\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eIntake manifold mount\u003c\/dd\u003e\n\u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMetal, die-cast aluminum\u003c\/dd\u003e\n\u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\/machined\u003c\/dd\u003e\n\u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eReplacement flange\u003c\/dd\u003e\n\u003cdt\u003eFunction\u003c\/dt\u003e\n\u003cdd\u003eFuel and air metering for smooth combustion and reliable engine operation\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Carburetor assembly\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eAllow the engine to cool, shut off the fuel supply, and follow the engine manufacturer's safety procedures.\u003c\/li\u003e\n\u003cli\u003ePlace an absorbent rag below the carburetor to catch spilled fuel.\u003c\/li\u003e\n\u003cli\u003eDisconnect the fuel line and any applicable electrical connections.\u003c\/li\u003e\n\u003cli\u003eRemove the airbox cover and air filter assembly as necessary for access.\u003c\/li\u003e\n\u003cli\u003eDisconnect the throttle and choke linkages, noting their original positions.\u003c\/li\u003e\n\u003cli\u003eRemove the fasteners securing the carburetor to the intake manifold.\u003c\/li\u003e\n\u003cli\u003eRemove the old carburetor without damaging the intake surface or adjacent components.\u003c\/li\u003e\n\u003cli\u003eClean the mounting surface and remove old gasket material and debris.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement carburetor with the correct gasket and tighten the fasteners evenly to the manufacturer's specification.\u003c\/li\u003e\n\u003cli\u003eReconnect the linkages, fuel line, airbox, and other removed components.\u003c\/li\u003e\n\u003cli\u003eTurn on the fuel supply, prime the system if required, and inspect carefully for leaks before starting.\u003c\/li\u003e\n\u003cli\u003eStart and run the engine in a safe, well-ventilated area while checking idle and throttle response.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\u003cp\u003eCompare the engine brand, exact model, horsepower, 4-stroke designation, serial information, mounting arrangement, and original carburetor part number with the information above. A visual comparison of the replacement and original components is also recommended. If any important detail differs, do not install the part without further confirmation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are common signs of a failing carburetor?\u003c\/summary\u003e\u003cp\u003eSymptoms may include hard starting, rough or unstable idle, stalling at low speed, poor acceleration, increased fuel consumption, black exhaust smoke, or fuel leakage around the carburetor.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill adjustment be required after installation?\u003c\/summary\u003e\u003cp\u003eThis is intended as a direct-fit replacement, but idle speed or mixture adjustment may be required depending on the engine, fuel condition, operating altitude, and installation. Follow the engine manufacturer's adjustment procedure.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow should the carburetor be maintained?\u003c\/summary\u003e\u003cp\u003eUse fresh fuel and an appropriate stabilizer when required. Inspect fuel lines and connections regularly for deterioration or leaks. For extended storage, follow the engine manufacturer's procedure for draining or stabilizing the fuel system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement carburetor, not an original equipment manufacturer component.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the shipping and warranty terms?\u003c\/summary\u003e\u003cp\u003eShipping availability, delivery estimates, warranty coverage, and return conditions are determined by the applicable order and store policies. Review the current policy information at checkout or contact support before ordering if these terms are important to your purchase.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGasoline is flammable. Work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n\u003cli\u003eVerify the engine model, horsepower, stroke type, serial information, and original part before purchase.\u003c\/li\u003e\n\u003cli\u003eDo not operate the engine if fuel leaks are present.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when you are not familiar with marine fuel systems.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\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 — Marine replacement parts selected for dependable service in real-world conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are shown according to the destination and current order terms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Practical replacement solutions with attention to fit, materials, and quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723790586171,"sku":"1A-NJHV-44RU","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/1A-NJHV-44RU.png?v=1763031868"},{"product_id":"water-pump-impeller-maintenance-kit-fits-mercury-mariner-tohatsu-4-6-hp-4-stroke-replaces-8m0120836-3gr-87500-0","title":"Water Pump Impeller Maintenance Kit – Fits Mercury\/Mariner\/Tohatsu 4–6 HP 4-Stroke (Replaces 8M0120836, 3GR-87500-0)","description":"\u003csection\u003e\n\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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller Maintenance Kit\u003c\/strong\u003e supplies service components for cooling-system maintenance on selected Mercury and Mariner 4–6 HP 4-Stroke outboard engines and compatible Tohatsu 4–6 HP 4-Stroke models.\u003c\/p\u003e\n\u003cp\u003eThe kit is listed as an aftermarket replacement for Mercury reference number \u003cstrong\u003e8M0120836\u003c\/strong\u003e and Tohatsu reference number \u003cstrong\u003e3GR-87500-0\u003c\/strong\u003e. Confirm the engine model, serial-number range, and the original component numbers before ordering.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eDesigned for replacement of the listed water-pump and related service components.\u003c\/li\u003e\n \u003cli\u003eCombines impeller, gasket, seal, filter, thermostat, and related maintenance parts in one service kit.\u003c\/li\u003e\n \u003cli\u003eSupports routine cooling-system service and restoration of proper water-pump operation when installed correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these reference numbers when comparing the kit with your existing engine parts and service information.\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\u003c\/td\u003e\n \u003ctd\u003e8M0120836\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e3GR-87500-0\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\u003eCompatibility should be confirmed using the engine model, year, serial number, and service-manual part references together. The listed Mercury and Mariner application is for 4\/5\/6 HP EFI 4-Stroke outboards from 2015 and newer with serial number 0R411838 and above. The kit is also listed for compatible Tohatsu MFS4, MFS5, and MFS6 4-Stroke models; specific Tohatsu year and serial-number ranges should be verified before purchase.\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\u003eReference 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 \/ Mariner\u003c\/td\u003e\n \u003ctd\u003e4 HP EFI\u003c\/td\u003e\n \u003ctd\u003e4\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2015 and newer\u003c\/td\u003e\n \u003ctd\u003e8M0120836\u003c\/td\u003e\n \u003ctd\u003eSerial number 0R411838 and above\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n \u003ctd\u003e5 HP EFI\u003c\/td\u003e\n \u003ctd\u003e5\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2015 and newer\u003c\/td\u003e\n \u003ctd\u003e8M0120836\u003c\/td\u003e\n \u003ctd\u003eSerial number 0R411838 and above\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n \u003ctd\u003e6 HP EFI\u003c\/td\u003e\n \u003ctd\u003e6\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2015 and newer\u003c\/td\u003e\n \u003ctd\u003e8M0120836\u003c\/td\u003e\n \u003ctd\u003eSerial number 0R411838 and above\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS4 \/ MFS5 \/ MFS6\u003c\/td\u003e\n \u003ctd\u003e4–6\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003eVerify by model and serial number\u003c\/td\u003e\n \u003ctd\u003e3GR-87500-0\u003c\/td\u003e\n \u003ctd\u003eConfirm application against the service manual\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\u003eOutboard water-pump and maintenance service kit\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eReplacement installation; follow the engine service manual\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n \u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n \u003cdd\u003e0.21 kg (0.46 lb)\u003c\/dd\u003e\n \u003cdt\u003ePackage Dimensions\u003c\/dt\u003e\n \u003cdd\u003eApproximately 100 × 92 × 76 mm (3.88 × 3.63 × 3.00 in)\u003c\/dd\u003e\n \u003cdt\u003ePurpose\u003c\/dt\u003e\n \u003cdd\u003eCooling-system maintenance and related outboard service\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 — 47-16154-3\u003c\/li\u003e\n \u003cli\u003e1 × Cotter Pin — 8150264\u003c\/li\u003e\n \u003cli\u003e1 × Pin Key — 28-16155\u003c\/li\u003e\n \u003cli\u003e1 × Thermostat — 804540\u003c\/li\u003e\n \u003cli\u003e1 × Thermostat Gasket — 27-8M0214960\u003c\/li\u003e\n \u003cli\u003e1 × O-Ring — 25-16131\u003c\/li\u003e\n \u003cli\u003e1 × Oil Seal — 26-16130\u003c\/li\u003e\n \u003cli\u003e1 × Fuel Filter — 35-8M0157133\u003c\/li\u003e\n \u003cli\u003e1 × Gasket — 8035161\u003c\/li\u003e\n \u003cli\u003e2 × Drain Gasket — 27-95220\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eFollow the engine manufacturer’s service procedure and make sure the engine cannot start accidentally before beginning work.\u003c\/li\u003e\n \u003cli\u003eDisconnect the battery, where fitted, and remove the spark-plug lead as specified by the service manual.\u003c\/li\u003e\n \u003cli\u003eAccess the lower unit by disconnecting the shift linkage, if applicable, and removing the retaining bolts.\u003c\/li\u003e\n \u003cli\u003eCarefully remove the lower unit from the outboard.\u003c\/li\u003e\n \u003cli\u003eOpen the water-pump housing on top of the gearcase and remove the retaining hardware.\u003c\/li\u003e\n \u003cli\u003eRemove the old impeller and related service components, noting their orientation and order.\u003c\/li\u003e\n \u003cli\u003eClean the pump housing and mating surfaces before installing replacement parts.\u003c\/li\u003e\n \u003cli\u003eInstall the new impeller in the correct rotational orientation and use the new gaskets, seals, and related parts as appropriate for the engine.\u003c\/li\u003e\n \u003cli\u003eReassemble the water-pump housing and reinstall the lower unit, aligning the driveshaft, shift linkage, and water tube correctly.\u003c\/li\u003e\n \u003cli\u003eRun the engine only with an adequate water supply and confirm proper cooling-water flow before returning it to service.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich engines does this kit fit?\u003c\/summary\u003e\u003cp\u003eIt is listed for selected Mercury and Mariner 4–6 HP EFI 4-Stroke outboards from 2015 and newer with serial numbers 0R411838 and above. It is also listed for compatible Tohatsu MFS4, MFS5, and MFS6 4-Stroke models. Always verify the complete model and serial-number application before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this is the right part?\u003c\/summary\u003e\u003cp\u003eMatch the engine brand, model, horsepower, stroke, year, serial number, and the reference numbers shown above. Compare the existing impeller and service components with the listing images and consult the engine service manual if any detail differs.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a worn water-pump impeller?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include weak or absent water flow from the telltale, overheating warnings, steam from the exhaust, or abnormal engine temperature. Stop operating an overheating engine and investigate the cooling system before further use.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the water pump be serviced?\u003c\/summary\u003e\u003cp\u003eReplace the impeller and inspect related cooling-system components according to the engine manufacturer’s maintenance schedule. Service may be needed more frequently when operating in saltwater, sandy water, or water containing debris.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement maintenance kit, not an original equipment manufacturer kit. The reference numbers are provided for comparison and application checking; they do not change the aftermarket status of the product.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I do if the components do not match?\u003c\/summary\u003e\u003cp\u003eDo not install parts that differ in size, shape, number of blades, gasket arrangement, or fit. Confirm the complete engine model and serial number against the service manual before proceeding.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify the engine model, year, horsepower, stroke, serial-number range, and reference part number before purchase.\u003c\/li\u003e\n \u003cli\u003eDo not run the outboard without an adequate water supply.\u003c\/li\u003e\n \u003cli\u003eAllow the engine to cool before servicing the water pump or thermostat.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement kit, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when the correct service procedure 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\u003eMarine Replacement Parts\u003c\/strong\u003e — Service components for routine outboard maintenance and repair.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Reference numbers and compatibility information are provided to help identify the correct replacement.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact support with your engine model and serial-number information when application assistance is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969335611,"sku":"MRKM23KM771","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/MRKM23KM771.png?v=1763038763"},{"product_id":"boat-marine-369-87322-0-water-pump-impeller-repair-kit-for-tohatsu-nissan-4-5-6-hp-outboard-motor-ns4c-m4c-nsf4-mfs4-ns5b-m5b-nsf5-mfs5-nsf6-mfs6-replace-369873220m-369873221m","title":"Boat Marine Water Pump Impeller Repair Kit for Tohatsu Nissan 4 5 6 HP 4-Stroke Outboards MFS4 MFS5 MFS6 NSF4 NSF5 NSF6 Replaces 369-87322-0 369-87322-1 369-87322-2","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 {\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\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller repair kit\u003c\/strong\u003e is intended for selected Tohatsu and Nissan 4 HP, 5 HP, and 6 HP 4-stroke outboard motors, including applicable MFS, NSF, and related M-series models. It is designed to support water pump service and help restore proper engine cooling when the existing impeller and service components are worn.\u003c\/p\u003e\n \u003cp\u003eThe kit is listed as a replacement for Tohatsu part numbers \u003cstrong\u003e369-87322-0\u003c\/strong\u003e, \u003cstrong\u003e369873220M\u003c\/strong\u003e, and \u003cstrong\u003e369873222M\u003c\/strong\u003e; Nissan part numbers \u003cstrong\u003e369-87322-1\u003c\/strong\u003e and \u003cstrong\u003e369873221M\u003c\/strong\u003e; and Mercury part number \u003cstrong\u003e16159A03\u003c\/strong\u003e. Confirm the part number, engine model, year, and component dimensions before ordering.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eDesigned as a direct-replacement water pump service kit for listed applications.\u003c\/li\u003e\n \u003cli\u003eIncludes an impeller, gaskets, and guide plates as described for this kit.\u003c\/li\u003e\n \u003cli\u003eService components use plastic and metal construction where applicable.\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 part number on your existing water pump components. Part-number cross-references should be confirmed 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\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003cth\u003eSuperseded By\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\u003e369-87322-0\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e369873220M\u003c\/td\u003e\n \u003ctd\u003e369873222M\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eNissan\u003c\/td\u003e\n \u003ctd\u003e369-87322-1\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e16159A03\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 \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe following applications are the listed compatibility references for this repair kit. Confirm the exact model designation, production year, serial number, and existing pump part number 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\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\u003eMFS4B\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2014\u003c\/td\u003e\n\u003ctd\u003e369-87322-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\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\u003e369-87322-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e369-87322-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2010\u003c\/td\u003e\n\u003ctd\u003e369-87322-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\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\u003e369-87322-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6B\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2010\u003c\/td\u003e\n\u003ctd\u003e369-87322-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\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\u003e369-87322-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4B\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2010\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\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\u003e369-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\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\u003e369-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2010\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\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\u003e369-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF6B\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2010\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\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\u003e369-87322-1\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 \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 listed applications\u003c\/dd\u003e\n \u003cdt\u003eConstruction\u003c\/dt\u003e\n \u003cdd\u003ePlastic and metal service components, as applicable\u003c\/dd\u003e\n \u003cdt\u003eComponents\u003c\/dt\u003e\n \u003cdd\u003eImpeller, gaskets, and guide plates\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n \u003cdd\u003e7.1 ounces (201 g)\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 repair kit\u003c\/li\u003e\n \u003cli\u003eImpeller, gaskets, and guide plates as described above\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eDisconnect the battery and ensure the outboard is in neutral.\u003c\/li\u003e\n \u003cli\u003eRemove the mounting bolts securing the lower unit or gearcase, then carefully lower it from the engine.\u003c\/li\u003e\n \u003cli\u003eUnbolt and lift the water pump housing to expose the impeller.\u003c\/li\u003e\n \u003cli\u003eInspect the housing and wear plate. Clean or replace them if significant scoring, damage, or warping is present.\u003c\/li\u003e\n \u003cli\u003eRemove the old impeller, woodruff key, and gaskets. Clean all mating surfaces thoroughly.\u003c\/li\u003e\n \u003cli\u003eInstall the new gaskets, wear plate, and woodruff key onto the driveshaft as required by the engine service procedure.\u003c\/li\u003e\n \u003cli\u003eSlide the new impeller onto the driveshaft, turning the shaft clockwise to help seat the vanes correctly inside the housing.\u003c\/li\u003e\n \u003cli\u003eReinstall the pump housing cover and tighten the bolts to the engine manufacturer's recommended torque specification.\u003c\/li\u003e\n \u003cli\u003eCarefully guide the lower unit back into place, ensuring the driveshaft, shift shaft, and water tube align correctly. Fasten the mounting bolts.\u003c\/li\u003e\n \u003cli\u003eTest-run the engine in water and confirm a steady stream from the cooling-system 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 kit fits my specific model?\u003c\/summary\u003e\n \u003cp\u003eCheck the Engine \u0026amp; Model Compatibility table for the engine model, horsepower, stroke, and listed year range. Then compare the part number on your existing water pump components with the Part Number Matrix. If the model, year, serial range, or part number is uncertain, consult the engine service documentation 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 symptoms include a weak or intermittent water stream from the tell-tale, engine overheating warnings, steam from the exhaust, or reduced cooling performance.\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 according to the engine manufacturer's maintenance schedule. Replacement intervals can be shorter when the outboard is used in saltwater or silty or sandy conditions.\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 kit, not an OEM component. The OEM and manufacturer part numbers shown are reference numbers for compatibility comparison only.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat should I verify before installation?\u003c\/summary\u003e\n \u003cp\u003eVerify the exact engine model, horsepower, stroke, year or serial range, and the part number of the existing water pump components. Compare the replacement components with the original parts before beginning service.\u003c\/p\u003e\n \u003c\/details\u003e\n\n \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eAlways compare the replacement components with the original parts before installation.\u003c\/li\u003e\n \u003cli\u003eDo not rely on horsepower alone to confirm fitment; model, year, serial range, and part number may also be required.\u003c\/li\u003e\n \u003cli\u003eFollow the engine manufacturer's service procedure and torque specifications.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when you are not experienced with outboard lower-unit or water-pump service.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement kit, not an OEM component.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003ePro-Grade Standards — Marine replacement parts selected for dependable service in real-world operating conditions.\u003c\/li\u003e\n \u003cli\u003eGlobal Fulfillment — Shipping options and delivery estimates are shown at checkout where available.\u003c\/li\u003e\n \u003cli\u003eManufacturer-Direct Value — Competitive pricing for routine marine maintenance and repair.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969433915,"sku":"5GH03pKM316","price":36.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/5GH03pKM316.png?v=1763038767"},{"product_id":"water-pump-impeller-repair-kit-fits-mercury-tohatsu-nissan-4-6hp-outboards-replaces-369-87322-1","title":"Water Pump Impeller Repair Kit for Mercury, Tohatsu and Nissan 4–6 HP 4-Stroke 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\n\u003csection\u003e\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThis \u003cstrong\u003ewater pump impeller repair kit\u003c\/strong\u003e is intended for selected Mercury, Tohatsu, and Nissan 4 HP, 5 HP, and 6 HP 4-stroke outboard motors. It supplies the primary replacement components needed to service the water pump and help restore proper cooling-system performance.\u003c\/p\u003e\n \u003cp\u003eThe kit is listed as a replacement for the reference numbers shown below, including Mercury \u003cstrong\u003e16159A03\u003c\/strong\u003e and \u003cstrong\u003e16159A1\u003c\/strong\u003e, and Nissan\/Tohatsu \u003cstrong\u003e369-87322-1\u003c\/strong\u003e. Always compare the part number, engine model, and component configuration before ordering.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eReplacement water pump impeller service kit for selected small outboards.\u003c\/li\u003e\n \u003cli\u003eIncludes an impeller, wear plate, gasket, and woodruff key.\u003c\/li\u003e\n \u003cli\u003eDesigned to help restore water-pump sealing and cooling performance after servicing.\u003c\/li\u003e\n \u003cli\u003eAftermarket replacement component; not an OEM-manufactured part.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n \u003cp\u003eThe following numbers are reference or cross-reference numbers associated with this replacement kit. Confirm the number on your original component and verify the complete engine application before installation.\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 or Source\u003c\/th\u003e\n \u003cth\u003eReference 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\u003e16159A03\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e16159A1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n\u003ctd\u003e369873221M\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n\u003ctd\u003e369873221\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eQuickMariner\u003c\/td\u003e\n\u003ctd\u003e16159A1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFridayparts\u003c\/td\u003e\n\u003ctd\u003eFPCY2406504\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe applications below represent the listed compatibility range for this replacement kit. Model designations, production changes, and serial-number breaks can affect fitment. Verify your exact engine model and the reference number of the original water-pump components before purchase.\u003c\/p\u003e\n\n \u003ch3\u003eMercury 4-Stroke Outboards\u003c\/h3\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Compatible Mercury Outboards\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel or Rating\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eYear or Serial Range\u003c\/th\u003e\n \u003cth\u003eReference Part 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\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e16159A03 \/ 16159A1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e5 HP\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\u003e16159A03 \/ 16159A1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e6 HP\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e16159A03 \/ 16159A1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eTohatsu 4-Stroke Outboards\u003c\/h3\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Compatible Tohatsu Outboards\"\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 or Serial Range\u003c\/th\u003e\n \u003cth\u003eReference Part 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\u003eM4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM5B, M5BS\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\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4B, MFS4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5B, MFS5C\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\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6B, MFS6C\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\n \u003ch3\u003eNissan 4-Stroke Outboards\u003c\/h3\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Compatible Nissan Outboards\"\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 or Serial Range\u003c\/th\u003e\n \u003cth\u003eReference Part Number\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS5B, NS5BS\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\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4B, NSF4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF5B, NSF5C\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\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF6B, NSF6C\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e369-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\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\u003eApplication\u003c\/dt\u003e\n \u003cdd\u003eSelected Mercury, Tohatsu, and Nissan 4–6 HP 4-stroke outboards\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eDirect replacement when the engine application and reference number match\u003c\/dd\u003e\n \u003cdt\u003eDrive Connection\u003c\/dt\u003e\n \u003cdd\u003eWater-pump impeller installed on the drive shaft\u003c\/dd\u003e\n \u003cdt\u003eIncluded Service Components\u003c\/dt\u003e\n \u003cdd\u003eImpeller, wear plate, gasket, and woodruff key\u003c\/dd\u003e\n \u003cdt\u003eProduct Status\u003c\/dt\u003e\n \u003cdd\u003eAftermarket replacement; not an OEM component\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n \u003cdd\u003e1 year against manufacturing defects under normal use, subject to applicable warranty terms\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003e1 × Water pump impeller\u003c\/li\u003e\n \u003cli\u003e1 × Wear plate\u003c\/li\u003e\n \u003cli\u003e1 × Gasket\u003c\/li\u003e\n \u003cli\u003e1 × Woodruff key\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eDisconnect the battery and remove the engine cover. Follow the service precautions in the engine manufacturer's manual.\u003c\/li\u003e\n \u003cli\u003eDrain the lower-unit gear lubricant if required for removal of the gearcase.\u003c\/li\u003e\n \u003cli\u003eRemove the propeller and unbolt the lower unit from the upper leg.\u003c\/li\u003e\n \u003cli\u003eLower the gearcase carefully, disconnecting the shift shaft or other connections as required by the engine design.\u003c\/li\u003e\n \u003cli\u003eLocate and remove the water-pump housing.\u003c\/li\u003e\n \u003cli\u003eRemove the old impeller, wear plate, gasket, and key. Note the original orientation of each component.\u003c\/li\u003e\n \u003cli\u003eClean the mating surfaces and remove old gasket material, debris, and corrosion.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement gasket, wear plate, and woodruff key in the correct positions.\u003c\/li\u003e\n \u003cli\u003eInstall the new impeller on the drive shaft. Rotate the shaft in the manufacturer's specified direction while seating the impeller so the vanes are oriented correctly.\u003c\/li\u003e\n \u003cli\u003eInstall the pump housing and tighten its fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n \u003cli\u003eReinstall the lower unit, aligning the drive shaft, shift shaft, and water tube correctly.\u003c\/li\u003e\n \u003cli\u003eRefill the gear lubricant if it was drained, reinstall the propeller, and test the engine with an appropriate water supply. Confirm a strong cooling-water telltale stream before normal operation.\u003c\/li\u003e\n \u003c\/ol\u003e\n \u003cp\u003eInstallation procedures and shaft-rotation direction can vary by engine. Use the service manual for the exact model and do not operate the engine without an adequate water supply.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow do I know if the water-pump impeller needs replacing?\u003c\/summary\u003e\n \u003cp\u003eCommon signs include a weak or inconsistent telltale stream, an overheating warning, reduced water pressure, or visible impeller damage. Replace the impeller according to the maintenance schedule for your engine and inspect the wear plate and pump housing during service.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWill this kit fit my specific year and model?\u003c\/summary\u003e\n \u003cp\u003eThe listed application range covers selected Mercury, Tohatsu, and Nissan 4–6 HP 4-stroke outboards. Year and serial-number information is not specified for this listing, so compare your exact model, serial range, original part number, and component dimensions before ordering.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat is a common installation mistake?\u003c\/summary\u003e\n \u003cp\u003eInstalling the impeller vanes in the wrong orientation or failing to align the woodruff key can cause poor water-pump performance or premature failure. Follow the exact shaft-rotation direction and installation procedure in the engine service manual.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eShould I use grease or lubricant during installation?\u003c\/summary\u003e\n \u003cp\u003eUse only a lubricant recommended by the engine or water-pump manufacturer. A suitable marine lubricant or a water-based solution may be used where specified to protect the impeller during initial start-up. Do not use a petroleum product if the service manual prohibits it.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eThe new impeller looks larger or stiffer than the old one. Is that normal?\u003c\/summary\u003e\n \u003cp\u003eA worn impeller may shrink, deform, or harden, so a new impeller can appear larger or stiffer. Confirm that the replacement matches the applicable reference number and seats correctly in the pump housing before assembly.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhy replace the complete kit instead of only the impeller?\u003c\/summary\u003e\n \u003cp\u003eThe wear plate and gasket affect pump sealing and performance and may be grooved, scored, or compressed after use. Replacing the listed service components together helps restore the water-pump assembly when the original parts show wear.\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 to replace the listed reference applications. It is not manufactured by Mercury, Tohatsu, or Nissan.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat are the shipping and return terms?\u003c\/summary\u003e\n \u003cp\u003eShipping availability, delivery estimates, and return eligibility depend on the destination and the applicable order policy. Review the options shown at checkout and keep the parts unused and in their original condition if a return is required.\u003c\/p\u003e\n \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eVerify the engine brand, exact model, stroke type, year or serial range, and reference number before ordering.\u003c\/li\u003e\n \u003cli\u003eDo not rely on horsepower alone to confirm fitment.\u003c\/li\u003e\n \u003cli\u003eCompare the replacement components with the original parts before installation. Do not install a component that differs in size, shape, or key configuration.\u003c\/li\u003e\n \u003cli\u003eAlways use the engine manufacturer's service manual for torque values, shaft direction, gearcase removal, and cooling-system testing.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement kit, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended if you are not experienced with outboard gearcase or water-pump service.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\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 operating conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are shown according to destination and availability.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We aim to provide practical replacement solutions with clear application and installation information.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969466683,"sku":"24KM316-QM","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM316-QM.png?v=1763038768"},{"product_id":"fuel-pump-fits-mercury-mariner-4-stroke-4-6hp-replaces-803529t06-803529t01-803529t02-803529t03-3h6-04000-7","title":"Fuel Pump for Mercury\/Mariner 4-Stroke 4–6 HP Outboard Engines – Replaces 803529T06, 803529T01, 803529T02, 803529T03 and 3H6-04000-7","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\n\u003csection\u003e\n \u003ch2\u003eProduct Details\u003c\/h2\u003e\n \u003cp\u003eThis replacement \u003cstrong\u003emechanical fuel pump\u003c\/strong\u003e is listed for Mercury and Mariner 4-stroke 4 HP, 5 HP, and 6 HP outboard engines. It is intended to replace a worn or damaged pump when the original part number and engine configuration match the references shown below.\u003c\/p\u003e\n \u003cp\u003eThe listed replacement references are Mercury\/Mariner part numbers 803529T06, 803529T01, 803529T02, and 803529T03, together with Tohatsu part number 3H6-04000-7. Always compare the number on your existing pump and confirm the complete engine model information before ordering.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eReplacement fuel pump for selected small 4-stroke outboard applications.\u003c\/li\u003e\n \u003cli\u003eMechanical operation for engine-driven fuel delivery.\u003c\/li\u003e\n \u003cli\u003ePlastic-and-metal housing construction.\u003c\/li\u003e\n \u003cli\u003eSingle replacement fuel pump supplied.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n \u003cp\u003eUse the matrix below as a reference when comparing the original pump with this replacement.\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\/Mariner\u003c\/td\u003e\n \u003ctd\u003e803529T06\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n \u003ctd\u003e803529T01\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n \u003ctd\u003e803529T02\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n \u003ctd\u003e803529T03\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 \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe applications below reflect the listed 4-stroke horsepower range and reference numbers. Model year, exact model designation, serial number, mounting arrangement, and fuel-system configuration may affect fitment. Confirm the original part number 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\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eReference Part No.\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\u003e4 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e803529T06, 803529T01, 803529T02, 803529T03\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e5 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e803529T06, 803529T01, 803529T02, 803529T03\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMercury\u003c\/td\u003e\n \u003ctd\u003e6 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e803529T06, 803529T01, 803529T02, 803529T03\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMariner\u003c\/td\u003e\n \u003ctd\u003e4 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e803529T06, 803529T01, 803529T02, 803529T03\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMariner\u003c\/td\u003e\n \u003ctd\u003e5 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e803529T06, 803529T01, 803529T02, 803529T03\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMariner\u003c\/td\u003e\n \u003ctd\u003e6 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e803529T06, 803529T01, 803529T02, 803529T03\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e4 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e5 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003e6 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\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\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eReplacement installation for a matching original pump\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 and metal\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\u003eVehicle-specific fit\u003c\/dd\u003e\n \u003cdt\u003eOperation\u003c\/dt\u003e\n \u003cdd\u003eMechanical\u003c\/dd\u003e\n \u003c\/dl\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\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 Replacement mechanical fuel pump\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003eOnly the fuel pump is included. Fuel lines, clamps, mounting hardware, gaskets, and other installation components are not specified as included unless shown or stated separately.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eEnsure the engine is switched off and completely cool 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\u003eRelieve fuel-system pressure as appropriate and place absorbent material around the fuel lines to catch spills.\u003c\/li\u003e\n \u003cli\u003eNote the routing and orientation of each fuel line before disconnecting the old pump.\u003c\/li\u003e\n \u003cli\u003eRemove the old pump and clean the mounting surface without allowing debris to enter the fuel system.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement pump in the correct orientation and tighten the mounting fasteners according to the engine manufacturer's specifications.\u003c\/li\u003e\n \u003cli\u003eReconnect the fuel lines to the correct ports and secure them with suitable clamps where required.\u003c\/li\u003e\n \u003cli\u003ePrime the fuel system if necessary, inspect all connections for leaks, and verify proper operation before returning the engine to service.\u003c\/li\u003e\n \u003c\/ol\u003e\n \u003cp\u003eFollow the service manual for your exact engine model. Professional installation is recommended if you are not familiar with marine fuel systems.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow do I confirm this fits my specific engine?\u003c\/summary\u003e\n \u003cp\u003eCompare the part number on your existing pump with 803529T06, 803529T01, 803529T02, 803529T03, or 3H6-04000-7. Also verify the engine brand, 4-stroke configuration, horsepower, model designation, and serial-number range where applicable. A general 4–6 HP match alone is not sufficient to confirm every engine application.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat are common signs of a failing fuel pump?\u003c\/summary\u003e\n \u003cp\u003ePossible symptoms include hard starting, stalling, fuel starvation, loss of power, uneven running, or visible fuel leakage. Inspect the complete fuel system before replacing the pump, since restricted filters, damaged hoses, tank contamination, or carburetor problems can cause similar symptoms.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs maintenance required?\u003c\/summary\u003e\n \u003cp\u003eThe mechanical pump itself is not normally serviced as a routine maintenance item. Keep the fuel system clean, replace fuel filters at the intervals specified for your engine, and inspect hoses and connections for deterioration or leaks.\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 fuel pump, not a factory-branded OEM component. It is intended for applications matching the listed reference numbers and engine conditions.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat are the shipping speeds and costs?\u003c\/summary\u003e\n \u003cp\u003eShipping availability, delivery estimates, and costs depend on the destination and the options displayed at checkout.\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 subject to the seller's current policy. Review the applicable policy before purchase and contact support with your order information if assistance is needed.\u003c\/p\u003e\n \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eVerify the original part number and the complete engine application before ordering.\u003c\/li\u003e\n \u003cli\u003eDo not operate the engine if fuel leaks are present.\u003c\/li\u003e\n \u003cli\u003eUse appropriate personal protective equipment and work in a well-ventilated area.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended for fuel-system work.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\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 — We supply replacement components for a range of recreational and service applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Support\u003c\/strong\u003e — Compare the original part number and engine details to help identify the correct replacement.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDirect-Value Products\u003c\/strong\u003e — Practical aftermarket alternatives for routine repair and maintenance needs.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969499451,"sku":"fys12111033","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/fys12111033.png?v=1763038769"},{"product_id":"lower-unit-seal-kit-fits-tohatsu-mercury-nissan-4-6-hp-replaces-369-87321-0-369873210","title":"Lower Unit Seal Kit for Tohatsu, Mercury and Nissan 4–6 HP Outboards — Replaces 369-87321-0","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 @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 \u003cstrong\u003elower unit seal kit\u003c\/strong\u003e is designed for servicing the gearcase and water-pump sealing points on selected Tohatsu, Nissan and Mercury 4–6 HP outboards. It is listed for Tohatsu and Nissan 2-stroke M5B\/NS5B models and 4-stroke MFS4\/MFS5\/MFS6 and NSF4\/NSF5\/NSF6 models, as well as selected Mercury F4, F5 and F6 4-stroke outboards. Confirm the exact model, year and original part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThe kit is intended as an aftermarket replacement for the following listed references: Tohatsu\/Nissan \u003cstrong\u003e369-87321-0\u003c\/strong\u003e, \u003cstrong\u003e369873210\u003c\/strong\u003e, \u003cstrong\u003e369873210M\u003c\/strong\u003e and \u003cstrong\u003e369873212M\u003c\/strong\u003e; and Mercury \u003cstrong\u003e27-8M0155392\u003c\/strong\u003e, \u003cstrong\u003e95220A2\u003c\/strong\u003e, \u003cstrong\u003e27-8M0134073\u003c\/strong\u003e, \u003cstrong\u003e8M0082882\u003c\/strong\u003e and \u003cstrong\u003e27-8M0188431\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Lower unit and gearcase seal kit\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Replacement seals, O-rings and gaskets for compatible applications\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Non-asbestos paper gaskets, rubber O-rings and synthetic seals\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eService use:\u003c\/strong\u003e Lower unit, gearcase and water-pump sealing service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to compare the listed OEM and aftermarket reference numbers 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 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\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e369-87321-0 \/ 369873210 \/ 369873210M\u003c\/td\u003e\n\u003ctd\u003e369873212M\u003c\/td\u003e\n\u003ctd\u003eListed replacement and superseding references.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e27-8M0155392 \/ 95220A2 \/ 27-8M0134073 \/ 8M0082882 \/ 27-8M0188431\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eListed cross-references for compatible applications.\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 model and year information. Model generations and part numbers can vary, so compare your engine identification label and removed parts 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\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003eVerify model identification before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003eVerify model identification before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4A2, MFS5A2, MFS6A2\u003c\/td\u003e\n\u003ctd\u003e4, 5, 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4A2, NSF5A2, NSF6A2\u003c\/td\u003e\n\u003ctd\u003e4, 5, 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4B, MFS5B, MFS6B\u003c\/td\u003e\n\u003ctd\u003e4, 5, 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4B, NSF5B, NSF6B\u003c\/td\u003e\n\u003ctd\u003e4, 5, 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4C, MFS5C, MFS6C\u003c\/td\u003e\n\u003ctd\u003e4, 5, 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4C, NSF5C, NSF6C\u003c\/td\u003e\n\u003ctd\u003e4, 5, 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2011–2014\u003c\/td\u003e\n\u003ctd\u003e369-87321-0\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF4, F5, F6\u003c\/td\u003e\n\u003ctd\u003e4, 5, 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e27-8M0155392, 95220A2\u003c\/td\u003e\n\u003ctd\u003eConfirm the exact model and original part number.\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\u003eLower Unit Seal Kit\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation for compatible applications\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline outboard applications\u003c\/dd\u003e\n \u003cdt\u003eMaterials\u003c\/dt\u003e\n\u003cdd\u003eNon-asbestos paper gaskets, rubber O-rings and synthetic seals\u003c\/dd\u003e\n \u003cdt\u003eKit Contents\u003c\/dt\u003e\n\u003cdd\u003eNine replacement gaskets, seals and O-rings as listed below\u003c\/dd\u003e\n \u003cdt\u003eProduct Status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement, not an OEM 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 × Gasket (332-60006-0)\u003c\/li\u003e\n \u003cli\u003e1 × Oil Seal (369-60111-0)\u003c\/li\u003e\n \u003cli\u003e1 × O-Ring (345-65015-0)\u003c\/li\u003e\n \u003cli\u003e1 × Upper Pump Case Gasket (369-65018-0)\u003c\/li\u003e\n \u003cli\u003e1 × Pump Guide Plate Gasket (369-65029-0)\u003c\/li\u003e\n \u003cli\u003e1 × Oil Seal (369-60223-0)\u003c\/li\u003e\n \u003cli\u003e1 × Lower Pump Case Gasket (369-65020-0)\u003c\/li\u003e\n \u003cli\u003e1 × O-Ring (369-66021-1)\u003c\/li\u003e\n \u003cli\u003e1 × O-Ring (332-66032-0)\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 drain the gearcase oil into a suitable container.\u003c\/li\u003e\n \u003cli\u003eRemove the bolts securing the lower unit to the outboard midsection and carefully detach the lower unit.\u003c\/li\u003e\n \u003cli\u003eDisassemble the water-pump housing and impeller, noting the orientation of all parts.\u003c\/li\u003e\n \u003cli\u003eRemove the old seals, O-rings and gaskets from the gearcase and water-pump components without scratching sealing surfaces.\u003c\/li\u003e\n \u003cli\u003eClean all mating surfaces thoroughly and remove old gasket material and corrosion.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement seals and gaskets from the kit. Lightly lubricate rubber O-rings and seal lips with suitable marine grease where appropriate.\u003c\/li\u003e\n \u003cli\u003eReassemble the water pump and lower-unit components in the reverse order of disassembly.\u003c\/li\u003e\n \u003cli\u003eReinstall the lower unit and tighten the fasteners to the engine manufacturer's specified torque.\u003c\/li\u003e\n \u003cli\u003eRefill the gearcase with the recommended lower-unit oil to the correct level.\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 lower-unit seals are failing?\u003c\/summary\u003e\u003cp\u003eCommon signs include milky or water-contaminated gear oil, visible oil leakage around the propeller shaft or driveshaft housing, or an unusual odor from the gear oil. Inspect the gear lubricant regularly, especially during scheduled service.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this kit fix a leak from my gearcase?\u003c\/summary\u003e\u003cp\u003eThis kit replaces the listed common seals and gaskets for compatible applications. If a leak continues after installation, inspect the housing, shafts, bearings and sealing surfaces for cracks, wear or damage.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between this kit and an OEM version?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement kit rather than an OEM component. Compare the listed contents, dimensions and reference numbers with your original parts before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need special tools for installation?\u003c\/summary\u003e\u003cp\u003eStandard mechanic's tools are generally required. A seal puller can help remove old seals safely, and a torque wrench is recommended for correctly tightening lower-unit fasteners.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should lower-unit seals be replaced?\u003c\/summary\u003e\u003cp\u003eThere is no universal replacement interval. Inspect the gearcase for water intrusion and oil leakage during regular maintenance, and replace seals when the lower unit is serviced or symptoms appear.\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 intended for the listed applications and reference numbers.\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, with standard shipping free to most regions. Expedited options may be available at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the warranty and return terms?\u003c\/summary\u003e\u003cp\u003eThe product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the applicable standard return window when the item is unused and in its original condition.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eConfirm the engine brand, model, year, stroke, horsepower and original part number before ordering.\u003c\/li\u003e\n \u003cli\u003eCompare the supplied parts with the originals before disassembly and installation.\u003c\/li\u003e\n \u003cli\u003eDo not install a part that differs in size, shape or sealing profile from the required application.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when servicing the lower unit or water pump.\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 intended for demanding real-world service 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 materials and quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969532219,"sku":"24MSK719R","price":45.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24MSK719R.png?v=1763038771"},{"product_id":"fuel-pump-fits-tohatsu-nissan-4-9-8-hp-mercury-mariner-4-6-hp-replaces-3h6-04000-803529t","title":"Fuel Pump – Fits Tohatsu\/Nissan 4-9.8 HP \u0026 Mercury\/Mariner 4-6 HP (Replaces 3H6-04000, 803529T)","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\u003efuel pump\u003c\/strong\u003e is designed for a range of 4-stroke Tohatsu and Nissan outboard motors from 4 HP through 9.8 HP, as well as selected 4-stroke Mercury and Mariner 4 HP through 6 HP engines. Confirm the complete engine model, year, stroke type, and existing part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThis fuel pump is listed as an aftermarket replacement for Tohatsu references in the \u003cstrong\u003e3H6-04000\u003c\/strong\u003e series and Mercury references including \u003cstrong\u003e803529T\u003c\/strong\u003e, \u003cstrong\u003e803529T01\u003c\/strong\u003e, \u003cstrong\u003e803529T02\u003c\/strong\u003e, \u003cstrong\u003e803529T03\u003c\/strong\u003e, and \u003cstrong\u003e803529T06\u003c\/strong\u003e. Reference numbers identify possible replacements and should be checked against the application details for your engine.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eReplacement fuel pump assembly for selected small 4-stroke outboards.\u003c\/li\u003e\n \u003cli\u003eDesigned for direct replacement where the listed model and part-number conditions match.\u003c\/li\u003e\n \u003cli\u003eMetal housing for use in marine fuel-system applications.\u003c\/li\u003e\n \u003cli\u003eOne complete fuel pump assembly is included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following manufacturer reference numbers to compare with the pump removed from your engine.\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\u003e3H6-04000-0M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-1M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-2M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-3M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-4M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-5M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-6M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T06\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 following applications are listed for Tohatsu and Nissan 4-stroke outboards. Mercury and Mariner replacement references are provided above, but specific model and year applications for those brands are not listed here. Match every applicable condition 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\u003eCatalog Section\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eIntake Manifold \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003e3H6-04000\u003c\/td\u003e\n\u003ctd\u003eCarburetor \u0026amp; Fuel Pump\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\u003eFuel pump assembly\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected 4-stroke outboard engines\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\u003eMetal\u003c\/dd\u003e\n \u003cdt\u003eProduct Status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement, not an OEM component\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × Fuel pump assembly\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eGaskets, mounting hardware, fuel lines, and clamps are not listed as included. Confirm the condition of the existing gasket and replace it when required for a proper seal.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eMake sure the engine is switched off and completely cool. Disconnect the battery and relieve fuel-system pressure according to the engine service manual.\u003c\/li\u003e\n \u003cli\u003ePlace an absorbent rag beneath the pump to catch residual fuel.\u003c\/li\u003e\n \u003cli\u003eDisconnect the fuel inlet and outlet lines, noting their original routing and orientation.\u003c\/li\u003e\n \u003cli\u003eRemove the fasteners securing the old pump and retain reusable hardware if appropriate.\u003c\/li\u003e\n \u003cli\u003eClean the mounting surface and inspect the gasket and mating surfaces.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement pump with the correct gasket and tighten the fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n \u003cli\u003eReconnect the fuel lines to the correct ports and secure them with suitable clamps.\u003c\/li\u003e\n \u003cli\u003ePrime the fuel system according to the engine manual. Inspect all connections for leaks before starting and again after the engine reaches operating condition.\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 fuel pump fits my engine?\u003c\/summary\u003e\u003cp\u003eCompare the pump currently installed on your engine with the reference numbers above, then verify the exact brand, model, horsepower, stroke, and year in the compatibility table. Do not rely on horsepower alone. If any detail or the pump configuration differs, consult the engine service information before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are common signs of a failing fuel pump?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include hard starting, stalling, loss of power, engine hesitation, bogging at higher speed, or an engine that will not start. These symptoms can also result from blocked fuel lines, a restricted filter, carburetor problems, or contaminated fuel, so inspect the complete fuel system before replacing the pump.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this pump come with a new gasket?\u003c\/summary\u003e\u003cp\u003eThe package is listed as one fuel pump assembly only. A gasket and mounting hardware are not listed as included. Inspect the existing gasket and use the correct replacement gasket whenever the original is damaged, compressed, or otherwise unsuitable for reuse.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the typical lifespan of a fuel pump?\u003c\/summary\u003e\u003cp\u003eService life depends on fuel quality, storage, usage, maintenance, and operating conditions. There is no universal replacement interval for this application. Replace the pump when testing confirms inadequate fuel delivery or when the assembly is damaged or leaking.\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 fuel pump. The manufacturer reference numbers above are provided for cross-reference and application identification only.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I verify before installation?\u003c\/summary\u003e\u003cp\u003eVerify the engine model, year, horsepower, stroke type, pump orientation, port arrangement, mounting pattern, and reference number. Work in a well-ventilated area away from ignition sources and follow the engine manufacturer's service procedures.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eFuel is flammable. Work in a well-ventilated area away from sparks, flames, hot surfaces, and other ignition sources.\u003c\/li\u003e\n \u003cli\u003eVerify the pump configuration and reference number against the original component and the engine service information before purchase.\u003c\/li\u003e\n \u003cli\u003eDo not operate the engine if any fuel connection leaks.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when fuel-system service procedures or engine-specific torque requirements are unfamiliar.\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 for a range of marine repair applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and compatibility details are provided to help you compare the part with your engine.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSupport for Part Identification\u003c\/strong\u003e — Compare the complete engine and component details before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969597755,"sku":"VHUfJ33gNz9","price":21.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/VHUfJ33gNz9.png?v=1763038773"},{"product_id":"fuel-pump-fits-mercury-marine-4-6-hp-tohatsu-nissan-4-9-8-hp-replaces-803529t01-803529t02-803529t06","title":"Aftermarket Mechanical Fuel Pump for Mercury 4–6 HP and Tohatsu\/Nissan 4–9.8 HP 4-Stroke Outboards — Replaces 803529T01, 803529T02 and 803529T06","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\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003emechanical fuel pump\u003c\/strong\u003e is designed for select 4-stroke Mercury Marine 4–6 HP outboards and Tohatsu\/Nissan MFS and NSF 4–9.8 HP outboards. It is actuated by the engine camshaft and is intended to provide dependable fuel delivery when replacing a compatible original pump.\u003c\/p\u003e\n\u003cp\u003eUse the engine model, horsepower, stroke, and existing part number together when confirming fitment. This replacement is associated with Mercury Marine references \u003cstrong\u003e803529T, 803529T01, 803529T02, 803529T03, and 803529T06\u003c\/strong\u003e, as well as Tohatsu\/Nissan references \u003cstrong\u003e3H6-04000-0 through 3H6-04000-7\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eMechanical pump activated by the engine camshaft.\u003c\/li\u003e\n \u003cli\u003eDesigned for specified small 4-stroke outboard applications.\u003c\/li\u003e\n \u003cli\u003eSupplied as a replacement pump kit with an O-ring and clamps.\u003c\/li\u003e\n \u003cli\u003eVerify the original pump, mounting arrangement, connections, and part number before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following are manufacturer and cross-reference numbers associated with this replacement application. They are provided for identification and compatibility checking only.\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 Marine\u003c\/td\u003e\n\u003ctd\u003e803529T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e803529T01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e803529T02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e803529T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e803529T06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eFitment depends on the complete engine configuration. Confirm the brand, model designation, horsepower, 4-stroke configuration, and existing pump number 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\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\u003eAssociated Part Numbers\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 HP Carb\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T, 803529T01, 803529T02, 803529T03, 803529T06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e5 HP Carb, including 5 HP Carb JCI model\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T, 803529T01, 803529T02, 803529T03, 803529T06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e6 HP Carb\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T, 803529T01, 803529T02, 803529T03, 803529T06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4A2, MFS4B, MFS4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF4A2, NSF4B, NSF4C\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5A2, MFS5B, MFS5C\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF5A2, NSF5B, NSF5C\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6A2, MFS6B, MFS6C\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF6A2, NSF6B, NSF6C\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS8A2, MFS8A3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF8A2, NSF8A3\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.8A2, MFS9.8A3\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF9.8A2, NSF9.8A3\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-0 through 3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine outboard mechanical fuel pump\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelect Mercury, Tohatsu, and Nissan 4-stroke outboards listed above\u003c\/dd\u003e\n\u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n\u003cdt\u003eActuation\u003c\/dt\u003e\n\u003cdd\u003eMechanical; activated by the engine camshaft\u003c\/dd\u003e\n\u003cdt\u003eConnections\u003c\/dt\u003e\n\u003cdd\u003eHose-barb inlet and screw-type outlet connection\u003c\/dd\u003e\n\u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMetallic marine fuel-pump housing; exact material not specified\u003c\/dd\u003e\n\u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver \/ metallic\u003c\/dd\u003e\n\u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e114.5 × 91 × 62 mm (4.53 × 3.58 × 2.44 in), listed package dimensions\u003c\/dd\u003e\n\u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.18 kg (6.4 oz)\u003c\/dd\u003e\n\u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eTransom-mount application\u003c\/dd\u003e\n\u003cdt\u003eThread Size\u003c\/dt\u003e\n\u003cdd\u003e0.25 in connection size\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × fuel pump\u003c\/li\u003e\n\u003cli\u003e2 × clamps \/ clips\u003c\/li\u003e\n\u003cli\u003e1 × O-ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAssociated component references include fuel pump reference 803529T01 \/ 3H6-04000-1, clamps \/ clips reference 54-95395, and O-ring reference 25-803513. Confirm the supplied components against the product received before installation.\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eReview the engine service information and confirm that the replacement pump matches the original pump and mounting arrangement.\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery or follow the engine manufacturer's procedure for preventing accidental starting.\u003c\/li\u003e\n\u003cli\u003eRelieve fuel-system pressure as directed by the engine service information.\u003c\/li\u003e\n\u003cli\u003ePlace absorbent material below the fuel connections to contain spilled fuel.\u003c\/li\u003e\n\u003cli\u003eDisconnect and identify the fuel inlet and outlet lines before removing the original pump.\u003c\/li\u003e\n\u003cli\u003eRemove the original pump and clean the mounting surface.\u003c\/li\u003e\n\u003cli\u003eInstall the supplied O-ring and mount the replacement pump in the correct orientation.\u003c\/li\u003e\n\u003cli\u003eTighten the mounting fasteners to the engine manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eReconnect the fuel lines to the correct ports and secure them with the supplied clamps.\u003c\/li\u003e\n\u003cli\u003ePrime the fuel system if required for the engine model, then inspect all connections for leaks before operating the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\u003cp\u003eCompare the complete engine model, horsepower, 4-stroke configuration, existing pump, mounting arrangement, and part number with the compatibility information above. Do not rely on horsepower alone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat symptoms can indicate a failing mechanical fuel pump?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include hard starting, rough idle, sputtering, hesitation, loss of power, or stalling under load. Fuel-system and ignition checks should be performed before replacing the pump.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an electric or mechanical pump?\u003c\/summary\u003e\u003cp\u003eThis is a mechanical fuel pump actuated by the engine camshaft. It is not described as an electrically powered fuel pump.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat do the T01, T02, and T06 suffixes mean?\u003c\/summary\u003e\u003cp\u003eSuffixes may identify revisions or superseding versions of a manufacturer's part number. Confirm the exact application and part-number relationship for your engine before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement fuel pump. The manufacturer-branded numbers shown above are reference numbers for identification and compatibility checking; the replacement itself is not represented as an original OEM component.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I do if the pump or connections differ from my original?\u003c\/summary\u003e\u003cp\u003eDo not force installation or modify the fuel system. Compare the part with the original and contact support before use if the mounting, ports, dimensions, or supplied components do not match.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch2\u003eSafety and 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\u003eAllow the engine and fuel system to cool before servicing.\u003c\/li\u003e\n\u003cli\u003eUse suitable fuel-resistant equipment and dispose of spilled fuel safely.\u003c\/li\u003e\n\u003cli\u003eInspect every connection for leaks before starting or operating the engine.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when the correct fitment or fuel-system procedure is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Replacement components for selected marine engine applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment-Focused Listings\u003c\/strong\u003e — Product references and compatibility information are provided to help customers compare their original parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact support with your engine model and original part information if you need help checking compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969630523,"sku":"QM-FP17001","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/QM-FP17001.png?v=1763038774"},{"product_id":"fuel-pump-fits-mercury-4-6-hp-tohatsu-nissan-4-9-8-hp-4-stroke-outboards-replaces-803529t06-3h6-04000","title":"Fuel Pump – Fits Mercury 4–6 HP and Tohatsu\/Nissan 4–9.8 HP 4-Stroke Outboards (Replaces 803529T06 and 3H6-04000)","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 \u003cstrong\u003eoutboard fuel pump\u003c\/strong\u003e is a replacement for selected Mercury and Mariner 4–6 HP 4-stroke outboards and Tohatsu\/Nissan 4–9.8 HP 4-stroke outboards. The listed applications cover multiple model years and should be checked against the engine model, year, and serial-number conditions shown below.\u003c\/p\u003e\n\u003cp\u003eThis pump is listed as an aftermarket replacement for Mercury part number \u003cstrong\u003e803529T06\u003c\/strong\u003e and Tohatsu\/Nissan part number \u003cstrong\u003e3H6-04000\u003c\/strong\u003e, along with the related reference numbers in the matrix. Confirm the original pump and application before ordering.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eDesigned as a direct-replacement fuel pump for the listed outboard applications.\u003c\/li\u003e\n \u003cli\u003eMetal housing for use in marine fuel-system applications.\u003c\/li\u003e\n \u003cli\u003eSupplied as one complete fuel pump assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following manufacturer and reference numbers to compare the replacement with the pump being removed.\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\u003e803529T06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6040000M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6040001M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6040002M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6040003M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6040004M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eCompatibility depends on the exact model, year, and serial-number range. Match all available information before installation.\u003c\/p\u003e\n\u003ch3\u003eMercury and Mariner 4-Stroke Applications\u003c\/h3\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Mercury and Mariner 4-Stroke 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\u003eReference Part No.\u003c\/th\u003e\n\u003cth\u003eSerial-Number Conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T06\u003c\/td\u003e\n\u003ctd\u003e0P401000–0R411837; 0R067090–0R411837; 0R411838 and up; 0P073456–0P400999; 0R000001–0R067089\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T06\u003c\/td\u003e\n\u003ctd\u003e0P401000–0R411837; 0R067090–0R411837; 0R411838 and up; 0P073456–0P400999; 0R000001–0R067089\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF5 International\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T06\u003c\/td\u003e\n\u003ctd\u003e0R560794 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eF6\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T06\u003c\/td\u003e\n\u003ctd\u003e0P401000–0R411837; 0R067090–0R411837; 0R411838 and up; 0P073456–0P400999; 0R000001–0R067089\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eTohatsu and Nissan 4-Stroke Applications\u003c\/h3\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Tohatsu and Nissan 4-Stroke 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\u003eReference Part No.\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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\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\u003e3H6-04000\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\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\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\u003e3H6-04000\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\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, 2009–2014\u003c\/td\u003e\n\u003ctd\u003e3H6-04000\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\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\u003e3H6-04000\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\u003eOutboard fuel pump\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\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eHose barb\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMetal\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e5.9 ounces (167 g)\u003c\/dd\u003e\n \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eVehicle-specific fit\u003c\/dd\u003e\n \u003cdt\u003eOther Technical Attribute\u003c\/dt\u003e\n\u003cdd\u003eMedium weight class\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × fuel pump assembly\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eDisconnect the engine battery cables to help prevent accidental starting.\u003c\/li\u003e\n \u003cli\u003eRelieve fuel-system pressure safely. Place an absorbent rag around the fittings to catch fuel spillage.\u003c\/li\u003e\n \u003cli\u003eDisconnect the fuel inlet and outlet hoses from the old pump, and note their orientation.\u003c\/li\u003e\n \u003cli\u003eRemove the fasteners securing the old pump to the engine.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement pump in the same position and secure it properly.\u003c\/li\u003e\n \u003cli\u003eReconnect the fuel hoses to the correct ports and secure the hose clamps.\u003c\/li\u003e\n \u003cli\u003eReconnect the battery, prime the fuel system if required, and inspect all connections for leaks before starting the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this pump fits my engine?\u003c\/summary\u003e\u003cp\u003eCompare the part number on your original pump with the numbers in the Part Number Matrix. If the original number is unavailable, match the engine brand, model, horsepower, stroke, year, and—where applicable—the Mercury serial-number range in the compatibility tables. Do not rely on horsepower alone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are common signs of a failing outboard fuel pump?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include difficult starting, sputtering or stalling, loss of power, inconsistent fuel delivery, and visible cracking or leakage around the pump. Test the fuel system according to the engine manufacturer's service procedures before replacing parts.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a low-pressure or high-pressure pump?\u003c\/summary\u003e\u003cp\u003eThis listing describes a low-pressure mechanical lift pump for transferring fuel from the tank to the engine's fuel system. It is not intended to replace a high-pressure electric pump used by a fuel-injected system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the fuel pump be replaced?\u003c\/summary\u003e\u003cp\u003eThere is no universal replacement interval. Inspect the pump during routine maintenance and replace it if it leaks, is damaged, or no longer delivers fuel correctly. Fuel quality and operating conditions can affect service life.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install this part myself?\u003c\/summary\u003e\u003cp\u003eInstallation may be straightforward for an experienced mechanic, but fuel-system work presents a fire hazard. Use proper ventilation, keep the engine away from ignition sources, and seek professional service if you are not familiar with outboard fuel systems.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eThis is an aftermarket replacement, not an OEM-branded component. Compare the original pump, fittings, mounting arrangement, and applicable part number before purchase.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I verify compatibility before ordering?\u003c\/summary\u003e\u003cp\u003eConfirm the original part number and all applicable engine conditions. For Mercury applications, pay particular attention to the serial-number range. For Tohatsu and Nissan applications, verify the exact model and model year.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eVerify the original part number, appearance, fittings, mounting arrangement, and engine application before ordering.\u003c\/li\u003e\n \u003cli\u003eCompatibility must be confirmed using the complete model, year, horsepower, stroke, and serial-number information where applicable.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eFuel leaks can create a fire hazard. Inspect every connection carefully after installation.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when you are uncertain about fuel-system 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\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts selected for practical service and real-world operating conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Delivery options and estimated transit times are shown at checkout according to destination and service selected.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We aim to provide dependable replacement parts at competitive prices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969663291,"sku":"w3zf7FP001t","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/w3zf7FP001t.png?v=1763038776"},{"product_id":"fuel-pump-fits-mercury-mariner-4-6-hp-tohatsu-nissan-4-9-8-hp-4-stroke-replaces-803529t06-3h6-04000-7","title":"Aftermarket Fuel Pump Assembly for Mercury\/Mariner 4–6 HP 4-Stroke and Tohatsu\/Nissan 4–9.8 HP 4-Stroke — Replaces 803529T06 and 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 aftermarket \u003cstrong\u003emechanical fuel pump assembly\u003c\/strong\u003e is designed for selected Mercury and Mariner 4–6 HP 4-stroke outboard engines and selected Tohatsu and Nissan 4–9.8 HP 4-stroke outboards. It replaces specified fuel pump references including Mercury\/Mariner \u003cstrong\u003e803529T06\u003c\/strong\u003e and Tohatsu\/Nissan \u003cstrong\u003e3H6-04000-7\u003c\/strong\u003e.\u003c\/p\u003e\n \u003cp\u003eThe pump is supplied as a single fuel pump assembly. It is not an OEM-branded component. Always compare the part number, engine model, horsepower, stroke, and serial-number range before ordering.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eAftermarket mechanical fuel pump assembly.\u003c\/li\u003e\n \u003cli\u003eFor selected 4-stroke outboard fuel systems.\u003c\/li\u003e\n \u003cli\u003eOne complete fuel pump assembly included.\u003c\/li\u003e\n \u003cli\u003eReplaces the applicable OEM references listed below.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n \u003cp\u003eThe following numbers are manufacturer or aftermarket reference numbers associated with this replacement application. Confirm your original pump and engine application before purchase.\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\u003eReference\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\u003e803529T06\u003c\/td\u003e\n\u003ctd\u003ePrimary replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803529T1\u003c\/td\u003e\n\u003ctd\u003eEarlier reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803529T02\u003c\/td\u003e\n\u003ctd\u003eEarlier reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e803529T03\u003c\/td\u003e\n\u003ctd\u003eEarlier reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003ctd\u003ePrimary replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-3\u003c\/td\u003e\n\u003ctd\u003eEarlier reference\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-1, 3H6-04000-2, 3H6-04000-4\u003c\/td\u003e\n\u003ctd\u003eAdditional earlier references\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6040007M\u003c\/td\u003e\n\u003ctd\u003eReference number\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 application. Match the brand, horsepower, 4-stroke configuration, model designation, and—where applicable—the serial-number range.\u003c\/p\u003e\n\n \u003ch3\u003eTohatsu and Nissan 4-Stroke Models\u003c\/h3\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Tohatsu and Nissan 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\u003eReference\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\u003eMFS4A2, MFS4B\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003eMFS5A2, MFS5B\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n\u003ctd\u003eMFS6A2, MFS6B\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\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\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTohatsu\/Nissan\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\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n \u003cp\u003eCatalog applications also list the 3H6-04000-7 fuel pump assembly on later Tohatsu MFS4\/MFS5\/MFS6 and MFS6\/MFS8\/MFS9.8 model families. Verify the exact model designation and parts diagram for your engine.\u003c\/p\u003e\n\n \u003ch3\u003eMercury and Mariner 4-Stroke Models\u003c\/h3\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Mercury and Mariner 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\u003eSerial-number condition\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\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eApplication-specific; catalog listings include 0P073456–0P400999 and 0R000001–0R411837 ranges\u003c\/td\u003e\n\u003ctd\u003e803529T06\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eApplication-specific; catalog listings include 0P073456–0P400999, 0R000001–0R411837, and 0R560794 and up\u003c\/td\u003e\n\u003ctd\u003e803529T06\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eApplication-specific; catalog listings include 0P073456–0P400999 and 0R000001–0R411837 ranges\u003c\/td\u003e\n\u003ctd\u003e803529T06\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\u003eMechanical fuel pump assembly\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n \u003cdd\u003eSelected Mercury\/Mariner and Tohatsu\/Nissan 4-stroke outboard fuel systems\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n \u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eReplacement References\u003c\/dt\u003e\n \u003cdd\u003e803529T06 and 3H6-04000-7, plus the related references listed above\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 x Fuel pump assembly\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003eGaskets, hoses, filters, mounting hardware, and other components are not included unless specifically shown or stated in the order details.\u003c\/p\u003e\n\n \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n \u003col\u003e\n \u003cli\u003eWork in a well-ventilated area away from open flames, sparks, and ignition sources.\u003c\/li\u003e\n \u003cli\u003eStop the engine, allow it to cool, and disconnect the battery where applicable.\u003c\/li\u003e\n \u003cli\u003eRelieve fuel-system pressure and place an absorbent cloth beneath the fuel connections.\u003c\/li\u003e\n \u003cli\u003eMark the inlet and outlet hose positions before disconnecting the existing pump.\u003c\/li\u003e\n \u003cli\u003eRemove the old pump and clean the mounting surface without damaging the engine or sealing surface.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement pump using the correct gasket or seal for your engine. Do not reuse a damaged gasket.\u003c\/li\u003e\n \u003cli\u003eReconnect the fuel lines in their original positions and secure them properly.\u003c\/li\u003e\n \u003cli\u003ePrime the fuel system according to the engine manufacturer's service instructions.\u003c\/li\u003e\n \u003cli\u003eInspect all connections for leaks before starting the engine, then recheck for leaks after startup.\u003c\/li\u003e\n \u003c\/ol\u003e\n \u003cp\u003eFollow the service manual for your exact engine when tightening fasteners or servicing the fuel system. If you are unsure about the application or installation, use a qualified marine technician.\u003c\/p\u003e\n\n \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n \u003cdetails\u003e\n \u003csummary\u003eHow do I confirm that this fuel pump fits my engine?\u003c\/summary\u003e\n \u003cp\u003eCompare the existing pump's manufacturer number with the references in the Part Number Matrix. Then confirm the engine brand, model, horsepower, 4-stroke configuration, and serial-number range where applicable. A horsepower match alone does not confirm compatibility.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat symptoms can indicate a fuel-pump problem?\u003c\/summary\u003e\n \u003cp\u003ePossible symptoms include hard starting, stalling, hesitation, loss of power, or insufficient fuel delivery. These symptoms can also be caused by clogged filters, restricted hoses, carburetor problems, air leaks, or ignition faults, so diagnose the complete fuel system before replacing the pump.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs this an OEM fuel pump?\u003c\/summary\u003e\n \u003cp\u003eNo. This listing is for an aftermarket replacement assembly intended for the applications and reference numbers shown on this page.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eDoes the package include a fuel filter?\u003c\/summary\u003e\n \u003cp\u003eNo. This product is a single fuel pump assembly. A fuel filter or other accessories are not included unless separately stated in the order details.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eDoes the pump require special maintenance?\u003c\/summary\u003e\n \u003cp\u003eThe pump itself is not normally serviced as a routine maintenance item. Use clean, fresh fuel and follow the engine manufacturer's recommendations for fuel-filter replacement and fuel-system maintenance.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat should I do if the part looks different from my original?\u003c\/summary\u003e\n \u003cp\u003eDo not install it until the part number, mounting arrangement, hose connections, and engine application have been verified. Contact a qualified technician or compare the engine's official parts diagram before proceeding.\u003c\/p\u003e\n \u003c\/details\u003e\n\n \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n \u003cul\u003e\n \u003cli\u003eVerify the complete application before purchase; model, horsepower, stroke, and serial-number conditions must be considered together.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement part and is not manufactured or branded by Mercury, Mariner, Tohatsu, or Nissan.\u003c\/li\u003e\n \u003cli\u003eFuel-system work involves flammable materials. Use proper ventilation and follow the engine manufacturer's safety procedures.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended if you are not experienced with marine fuel systems.\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 — We provide replacement components for common outboard service applications.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product pages identify reference numbers and fitment conditions to support accurate part selection.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSupport When Needed\u003c\/strong\u003e — Compare your original part and engine identification details before installation, and contact support if application information is unclear.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969696059,"sku":"N3-STTU-ZACW","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/N3-STTU-ZACW.png?v=1763038777"},{"product_id":"fuel-pump-assembly-fits-tohatsu-nissan-4-9-8-hp-mercury-mariner-4-6-hp-4-stroke-replaces-3h6-04000-7-803529t06","title":"Aftermarket Fuel Pump Assembly for Tohatsu\/Nissan 4–9.8 HP and Mercury\/Mariner 4–6 HP 4-Stroke 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 fuel pump assembly is intended as a replacement for selected 4-stroke outboard applications using the listed Tohatsu, Nissan, Mercury, or Mariner fuel-pump references. It is designed to restore fuel delivery when the original pump is leaking, damaged, or no longer operating correctly.\u003c\/p\u003e\n\u003cp\u003eApplicable manufacturer reference numbers include Tohatsu \u003cstrong\u003e3H6-04000-7\u003c\/strong\u003e and Mercury \u003cstrong\u003e803529T06\u003c\/strong\u003e. Always compare the original pump, connection layout, engine model, and manufacturer part number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eAftermarket replacement fuel pump assembly.\u003c\/li\u003e\n \u003cli\u003eTwo hose-barb connections for the fuel inlet and outlet.\u003c\/li\u003e\n \u003cli\u003eIntended for gasoline 4-stroke outboard applications listed below.\u003c\/li\u003e\n \u003cli\u003eInstallation should be completed with the fuel system depressurized and checked for leaks before operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number References\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are listed as manufacturer replacement or superseded references. Confirm the complete engine application before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eReference Number\u003c\/th\u003e\n\u003cth\u003eReference Status\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\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\u003e3H6-04000-0 through 3H6-04000-6\u003c\/td\u003e\n\u003ctd\u003eEarlier reference numbers listed with the 3H6-04000-7 replacement series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803529T06\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\u003e803529T1, 803529T02, 803529T03\u003c\/td\u003e\n\u003ctd\u003eEarlier reference numbers listed with the 803529T06 replacement series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe application information below is provided for cross-reference. Engine model, year, serial range, and fuel-system configuration can affect fitment. Match your original part number and inspect the original pump before purchase.\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\u003eReference 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\u003eMFS4A2\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\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\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF8A\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSF9.8A\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eModel-specific 4–6 HP applications using the listed reference\u003c\/td\u003e\n\u003ctd\u003e4, 5, or 6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e803529T06\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\u003eFuel pump assembly\u003c\/dd\u003e\n \u003cdt\u003ePart Type\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement component\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eTwo hose-barb connections for inlet and outlet lines\u003c\/dd\u003e\n \u003cdt\u003ePrimary Reference Numbers\u003c\/dt\u003e\n\u003cdd\u003eTohatsu 3H6-04000-7; Mercury 803529T06\u003c\/dd\u003e\n \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected 4-stroke outboard engines listed on this page\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 ×\u003c\/span\u003e Fuel pump assembly\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eGaskets, seals, mounting hardware, hoses, clamps, and other accessories are not included unless specifically shown or listed with the product.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n \u003cli\u003eRead the engine service information and work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n \u003cli\u003eStop the engine, disconnect the battery where applicable, and relieve fuel-system pressure.\u003c\/li\u003e\n \u003cli\u003ePlace an absorbent cloth beneath the pump and disconnect the inlet and outlet fuel lines. Mark their orientation before removal.\u003c\/li\u003e\n \u003cli\u003eRemove the original pump and inspect the mounting surface, fuel lines, clamps, and sealing surfaces.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement pump in the same orientation as the original and tighten fasteners according to the engine manufacturer's specifications.\u003c\/li\u003e\n \u003cli\u003eReconnect the fuel lines to the correct inlet and outlet ports and secure all clamps.\u003c\/li\u003e\n \u003cli\u003ePrime the fuel system according to the engine manual.\u003c\/li\u003e\n \u003cli\u003eInspect carefully for fuel leaks before starting the engine and again after it reaches operating temperature.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow can I identify a failing fuel pump?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include hard starting, hesitation, sputtering, stalling, surging, or loss of power. These symptoms can also result from clogged filters, restricted fuel lines, carburetor problems, air leaks, or ignition faults, so diagnose the complete fuel system before replacing the pump.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this pump a direct fit for my engine?\u003c\/summary\u003e\u003cp\u003eIt is intended for the applications and reference numbers listed on this page. Confirm the engine model, horsepower, stroke, serial or year range where applicable, original pump configuration, and manufacturer part number before ordering. Do not rely on horsepower alone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes the package include a gasket or new hardware?\u003c\/summary\u003e\u003cp\u003eNo. The package includes one fuel pump assembly only. Gaskets, seals, mounting hardware, hoses, and clamps are not included unless explicitly listed.\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 component. The manufacturer reference numbers are provided for application cross-reference and do not indicate that this product was manufactured by Tohatsu, Nissan, Mercury, or Mariner.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the replacement interval?\u003c\/summary\u003e\u003cp\u003eThere is no universal replacement interval for an outboard fuel pump. Inspect it during routine service and replace it when it leaks, shows physical damage, fails testing, or causes verified fuel-delivery problems.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003eFuel is flammable. Keep the work area ventilated and away from sparks, flames, and hot surfaces.\u003c\/li\u003e\n \u003cli\u003eVerify the original pump's shape, port arrangement, mounting pattern, and reference number before purchase.\u003c\/li\u003e\n \u003cli\u003eDo not operate the engine if fuel leakage is present.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when the correct application or fuel-system procedure 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\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical aftermarket components for servicing compatible marine engines.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Reference numbers and model information are provided to support fitment checks.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSupport Before Installation\u003c\/strong\u003e — Compare the original component and consult the engine service information before fitting a replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969728827,"sku":"FP-17-001","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/FP-17-001.png?v=1763038779"},{"product_id":"fuel-pump-fits-tohatsu-nissan-mfs-nsf-4-9-8-hp-mercury-mariner-4-6-hp-4-stroke-replaces-3h6-04000-7-803529t06","title":"Aftermarket Fuel Pump Assembly for Tohatsu MFS 4–9.8 HP 4-Stroke Outboards – Replaces 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; word-break:normal; letter-spacing:normal; 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 aftermarket \u003cstrong\u003efuel pump assembly\u003c\/strong\u003e is designed as a replacement for selected Tohatsu MFS 4-stroke outboard engines from 4 HP through 9.8 HP. Catalog applications identify the replacement part number \u003cstrong\u003e3H6-04000-7\u003c\/strong\u003e in the fuel-pump diagrams for the Tohatsu model and year ranges listed below.\u003c\/p\u003e\n \u003cp\u003eUse the exact engine model, year, and existing fuel-pump part number to confirm compatibility before ordering. This listing is for a single aftermarket fuel pump assembly, not a complete fuel-system kit.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eAftermarket replacement fuel pump assembly.\u003c\/li\u003e\n \u003cli\u003eDirect-replacement design for the listed Tohatsu applications.\u003c\/li\u003e\n \u003cli\u003eFor gasoline 4-stroke outboard fuel systems.\u003c\/li\u003e\n \u003cli\u003eCompare the original pump, hose routing, mounting arrangement, model, and year before installation.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003ePart Number Reference\u003c\/h2\u003e\n \u003cp\u003eThe verified catalog occurrences for this product identify the following manufacturer part number:\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Part Number Reference\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n \u003cth\u003eComponent\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\u003e3H6-04000-7\u003c\/td\u003e\n \u003ctd\u003eFuel Pump Assembly\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n \u003cp\u003eEarlier or alternative numbers should not be treated as confirmed equivalents without matching the engine model, year, and original pump. Number co-occurrence alone does not establish interchangeability.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n \u003cp\u003eThe following applications are supported by catalog occurrences for manufacturer part number \u003cstrong\u003e3H6-04000-7\u003c\/strong\u003e. Model, horsepower, stroke, and year conditions must be considered together.\u003c\/p\u003e\n \u003cdiv class=\"ss-table-wrap\"\u003e\n \u003ctable class=\"ss-table\" aria-label=\"Tohatsu Engine and Model Compatibility\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eBrand\u003c\/th\u003e\n \u003cth\u003eModel Family\u003c\/th\u003e\n \u003cth\u003eRated HP\u003c\/th\u003e\n \u003cth\u003eStroke\u003c\/th\u003e\n \u003cth\u003eCatalog Years\u003c\/th\u003e\n \u003cth\u003ePart 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\u003eMFS4\/5\/6C\u003c\/td\u003e\n \u003ctd\u003e4–6 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2013–2019\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS4\/5\/6D\u003c\/td\u003e\n \u003ctd\u003e4–6 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2020–2026\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS8\/9.8A3\u003c\/td\u003e\n \u003ctd\u003e8–9.8 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2013–2014\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS6\/8\/9.8A3\u003c\/td\u003e\n \u003ctd\u003e6–9.8 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2015–2016\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eTohatsu\u003c\/td\u003e\n \u003ctd\u003eMFS6BZ\/8B\/9.8B\u003c\/td\u003e\n \u003ctd\u003e6–9.8 HP\u003c\/td\u003e\n \u003ctd\u003e4-Stroke\u003c\/td\u003e\n \u003ctd\u003e2016–2024\u003c\/td\u003e\n \u003ctd\u003e3H6-04000-7\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n \u003c\/table\u003e\n \u003c\/div\u003e\n \u003cp\u003eCompatibility is not confirmed for every Tohatsu 4–9.8 HP model, every Nissan-branded equivalent, or every Mercury\/Mariner model. If your model or year is not listed, verify the original pump number and application with a qualified marine-parts professional before ordering.\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\u003eFuel Pump Assembly\u003c\/dd\u003e\n \u003cdt\u003eConstruction\u003c\/dt\u003e\n \u003cdd\u003eAftermarket replacement component\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n \u003cdd\u003eDirect replacement for listed applications\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\u003eFitting Type\u003c\/dt\u003e\n \u003cdd\u003eHose barb\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n \u003cdd\u003eAlloy\/plastic\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n \u003cdd\u003eBlack\/silver\u003c\/dd\u003e\n \u003cdt\u003eManufacturer Part Number\u003c\/dt\u003e\n \u003cdd\u003e3H6-04000-7\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n \u003cdd\u003e1-year aftermarket warranty\u003c\/dd\u003e\n \u003cdt\u003eProduction Standard\u003c\/dt\u003e\n \u003cdd\u003eManufactured in an ISO9002-certified facility\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;\"\u003e1 x\u003c\/span\u003e Fuel Pump Assembly\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003eNo additional hoses, clamps, gaskets, mounting hardware, or other fuel-system components are 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\u003eEnsure the engine is switched off and cool. Work outdoors or in a well-ventilated area away from flames, sparks, and other ignition sources.\u003c\/li\u003e\n \u003cli\u003eRelieve fuel-system pressure and place an approved container beneath the fuel connections before disconnecting any line.\u003c\/li\u003e\n \u003cli\u003eRecord the orientation of the inlet, outlet, and any vacuum or pulse lines connected to the original pump.\u003c\/li\u003e\n \u003cli\u003eDisconnect the fuel lines and remove the original pump according to the engine service manual.\u003c\/li\u003e\n \u003cli\u003eInspect the hoses, clamps, mounting surface, and related fuel-system components for damage, contamination, or deterioration.\u003c\/li\u003e\n \u003cli\u003eInstall the replacement pump in the correct orientation. Reuse or replace mounting hardware only as specified by the service manual.\u003c\/li\u003e\n \u003cli\u003eReconnect every hose to the correct port and secure the connections properly. Do not kink or stretch the fuel lines.\u003c\/li\u003e\n \u003cli\u003ePrime the fuel system according to the engine manufacturer's procedure.\u003c\/li\u003e\n \u003cli\u003eBefore operating the boat, start the engine and inspect the pump and all connections for fuel leaks. Stop immediately if a leak 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 know if this fuel pump fits my engine?\u003c\/summary\u003e\n \u003cp\u003eMatch all of the following: the exact engine model family, horsepower, 4-stroke configuration, year, and the part number on your original pump. The listed catalog applications use manufacturer part number 3H6-04000-7. If any detail differs, obtain confirmation before ordering.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eDoes this fit every Tohatsu or Nissan 4–9.8 HP outboard?\u003c\/summary\u003e\n \u003cp\u003eNo. The broad horsepower range is not sufficient by itself. Confirmed applications are limited to the Tohatsu model families and catalog years shown on this page. Nissan-branded and other related applications should not be assumed to fit without an exact part-number and model match.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eDoes this fit Mercury or Mariner outboards?\u003c\/summary\u003e\n \u003cp\u003eMercury and Mariner applications are not confirmed on this revised listing. Do not rely on a general powerhead similarity or a visual match; verify the exact engine model, year, and original fuel-pump number first.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWhat are common signs of a failing fuel pump?\u003c\/summary\u003e\n \u003cp\u003ePossible symptoms include hard starting, engine sputtering, loss of power under load, fuel starvation during acceleration, or an engine that stalls after running. Check the fuel supply, filter, hoses, and other related components before replacing the pump.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eIs there a recommended replacement interval?\u003c\/summary\u003e\n \u003cp\u003eThere is no universal replacement interval for this type of outboard fuel pump. Inspect the fuel system during routine maintenance and replace the pump if it fails, leaks, or shows signs of deterioration.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eCan I install this fuel pump myself?\u003c\/summary\u003e\n \u003cp\u003eInstallation may be suitable for an experienced mechanic, but it involves gasoline and requires correct hose routing and leak testing. Follow the engine service manual and use professional installation if you are not confident working on marine fuel systems.\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 fuel pump assembly. The manufacturer part number is provided only as an application reference.\u003c\/p\u003e\n \u003c\/details\u003e\n \u003cdetails\u003e\n \u003csummary\u003eWarranty and returns\u003c\/summary\u003e\n \u003cp\u003eThis part carries a 1-year aftermarket warranty against manufacturing defects under normal use. Returns are accepted within the standard return window for unused items in their original condition. Contact support with your order details for warranty or 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\u003eVerify the exact model, year, stroke, horsepower, and original part number before purchase.\u003c\/li\u003e\n \u003cli\u003eDo not operate the engine if any fuel connection leaks.\u003c\/li\u003e\n \u003cli\u003eUse only fuel-system-compatible hoses, clamps, and sealing components.\u003c\/li\u003e\n \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n \u003cli\u003eProfessional installation is recommended when working on a marine fuel system.\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 — Standard delivery is available to most regions; delivery options and estimated transit times appear at checkout.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing with practical replacement solutions for marine maintenance.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969761595,"sku":"XR17FP001","price":28.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/XR17FP001.png?v=1763038780"},{"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"}],"url":"https:\/\/seasierra.com\/collections\/tohatsu-6hp-4-stroke-outboard-marine-engine.oembed","provider":"SeaSierra","version":"1.0","type":"link"}