{"title":"Mercury 2-Stroke 4.5HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eThis page is dedicated to Mercury 2‑Stroke 4.5HP outboard engines. Use it to find compatible parts and practical service information. Below you’ll find maintenance intervals, common replacement items, and troubleshooting guidance. You can also browse the main Mercury collection any time. Scroll to the bottom of this page to start browsing parts for this engine, and remember you can use the collection page’s Filter \u0026amp; Sort controls to narrow by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;padding:10px 14px;border:1px solid #333;border-radius:6px;text-decoration:none;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 4.5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the serial\/nameplate: typically on the starboard side of the swivel bracket or transom clamp area. The sticker\/tag includes the serial number and basic model details.\u003c\/li\u003e\n    \u003cli\u003eModel code and suffix: older small Mercury 2‑strokes may use suffix letters for shaft length (S = short, L = long) and control or starting options. Record all characters for accurate parts matching.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: these 4.5HP engines are small, carbureted 2‑strokes. Depending on year, they may be single‑ or twin‑cylinder. Note whether you have manual or electric start and short (15\") or long (20\") shaft.\u003c\/li\u003e\n    \u003cli\u003eYear confirmation: if the plate is missing, check casting stamps and original decals. Photos of the clamp bracket and powerhead can help confirm the family by serial range.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003eSmall-Carb 2‑Stroke Platform (Mercury 4.5HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCarbureted 2‑stroke, small displacement; typically single‑ or twin‑cylinder depending on production year; manual start common.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e“4.5HP” tiller models in short (15\") or long (20\") shaft; verify with serial plate for exact variant.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eLightweight, simple service, easy starting when tuned, good portability for dinghies\/tenders.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eUse fresh 2‑stroke TC‑W3 oil at the specified premix ratio; service the water pump on schedule; confirm plug type\/gap and gearcase service specs per your serial number.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for small 2‑stroke outboards. Always follow the specifications for your exact serial number in the factory service manual.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;max-width:1000px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e2‑Stroke Oil \u0026amp; Fuel Mix\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery fill‑up\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eUse marine TC‑W3 2‑cycle oil; many small Mercury 2‑strokes specify 50:1 (confirm for your serial).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase Oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect for water\/milkiness; replace seals if contamination is present.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark Plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAnnually or 100 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify correct plug heat range and gap for your serial; replace if fouled or worn.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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:6px 0;\"\u003eInline Fuel Filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eDrain or replace if debris\/water is visible; keep fresh fuel to reduce varnish.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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:6px 0;\"\u003eWater Pump Impeller \/ Kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e2–3 seasons or 200–300 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eReplace sooner if weak tell‑tale or overheat; renew housing\/plates as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAnodes (Sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect 50 hrs; replace when 50% gone\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eDo not paint anodes; check more often in salt or brackish water.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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:6px 0;\"\u003ePropeller \u0026amp; Cotter\/Hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect every haul‑out\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGrease prop shaft to prevent seizing; repair dings to avoid vibration.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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:6px 0;\"\u003eFuel Line \u0026amp; Primer Bulb\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect seasonally\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eReplace if cracked\/hard; ethanol fuels accelerate hose aging.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/hoses\"\u003eHoses\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px;color:#555;\"\u003e*Intervals are typical for small 2‑stroke outboards in regular recreational use. Shorten intervals in harsh, sandy, or high‑salt environments.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-connector\"\u003eFuel Connectors\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\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=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;max-width:1000px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWeak tell‑tale or overheat\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eDebris on intake screen, old impeller, thermostat sticking, kinked tell‑tale hose\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWater pump kit, intake screen, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eStale fuel, fouled plugs, air leaks in fuel line\/primer bulb, carb idle mix out of spec\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs, inline fuel filter, \u003ca href=\"https:\/\/seasierra.com\/collections\/carburetor\"\u003eCarburetor\u003c\/a\u003e service parts\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eDamaged prop, water in gear oil, restricted fuel flow, low compression\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePropeller, fuel filter\/hoses, \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\"\u003eFuel Pump\u003c\/a\u003e\n\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eRich oil mix, extended idling, choke\/enrichment stuck on, fouled plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs, fuel system parts (filter\/hoses), general tune items\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase noise \/ metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eBent prop shaft, worn bearings\/gears, leaking seals allowing water intrusion\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\n\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eLower unit seal kit\u003c\/a\u003e, prop \u0026amp; hardware\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years of 4.5HP Mercury 2‑strokes?\u003c\/summary\u003e\n    \u003cp\u003eMany service parts are shared across small‑HP families, but plugs, carburetor pieces, seals, and ignition components can change with serial revisions. Always confirm with your serial number and shaft length to ensure compatibility.\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, every 2–3 seasons or 200–300 hours. Replace sooner if the tell‑tale weakens, the engine overheats, or the pump has ingested sand or debris.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change gear oil?\u003c\/summary\u003e\n    \u003cp\u003eAt least annually or every 100 hours. If you see milky oil or water during service, stop operating and service seals before running again.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003ePlease provide the engine’s serial number (from the clamp\/bracket plate), shaft length (15\" or 20\"), start type (manual\/electric), and a photo of the nameplate. Pictures of the carb, lower unit, and cowl decals also help.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eReady to find parts? Browse the main Mercury collection and use Filter \u0026amp; Sort to narrow by horsepower, year range, and category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;padding:10px 14px;border:1px solid #333;border-radius:6px;text-decoration:none;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;font-size:12px;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":"fuel-filter-fits-mercury-marine-4-85-hp-inline-engines-replaces-1399-3938","title":"Fuel Filter – Fits Mercury Marine 4-85 HP Inline Engines (Replaces 1399-3938)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eFuel Filter – Fits Mercury Marine 4-85 HP Inline Engines (Replaces 1399-3938)\u003c\/strong\u003e is designed for a wide range of Mercury Marine 2-stroke and 4-stroke inline engines from 4 HP to 85 HP, covering various years. It is also compatible with select Johnson\/Evinrude models requiring part #0509400.\u003c\/p\u003e\n\u003cp\u003eIt directly replaces Mercury parts 1399-3938, 399-39380, 1754, and 3938, as well as Sierra 18-7832 and Johnson\/Evinrude 0509400.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for inline installation on carbureted engines.\u003c\/li\u003e\n\u003cli\u003eSpecifically engineered for use with side bowl carburetors.\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\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\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\u003e1399-3938\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e399-39380\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1754\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e3938\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-7832\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e0509400\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\u003cp\u003eFor Mercury Marine, this filter fits a broad range of 2-stroke models from 4 HP up to 150 HP across various years. Please verify your specific model and OEM part number.\u003c\/p\u003e\n\u003cp\u003eFor Johnson\/Evinrude, compatibility is based on the OEM part number cross-reference (0509400). Specific models are not detailed; please verify your part number before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4 (1 CYL. PRODUCT OF USA)\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1986\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–1986\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e110\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 10\/10A\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 15A\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 25\/25E\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 28\/28A\/28AD\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 30H\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e350\/MARK 35A\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e400\/402\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e450\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–Various\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 55\/55E\/55H\/55AE\/55AM\u003c\/td\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 58E\/58AE\u003c\/td\u003e\n\u003ctd\u003e58\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e600\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e650 (3 Cyl\/4 Cyl)\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1967–1975\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eMARK 75\/75A\/MARK 78\/78A\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e700\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e800\/800 80\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e850\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e900\u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e950\u003c\/td\u003e\n\u003ctd\u003e95\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1000\/1000SS\/1000BP\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1100\u003c\/td\u003e\n\u003ctd\u003e110\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1150\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1973–1985\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1250\/1250BP\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1350\u003c\/td\u003e\n\u003ctd\u003e135\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1400\u003c\/td\u003e\n\u003ctd\u003e140\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e1500\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1973–1985\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e100, 150, 200, 250\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e300 350\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e1399-3938\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious Models\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0509400\u003c\/td\u003e\n\u003ctd\u003eCross-reference provided but specific models not detailed\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\u003eInline Fuel Filter\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eInline, carbureted engines\u003c\/dd\u003e\n\u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n\u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eInline\u003c\/dd\u003e\n\u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e5.56\" H x 1.88\" W x 1.31\" L\u003c\/dd\u003e\n\u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eFor use with side bowl carburetors\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\u003c\/span\u003e x Fuel Filter (1399-3938)\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\u003eShut off the fuel supply to the engine and place a suitable container underneath the work area to catch any fuel spillage.\u003c\/li\u003e\n\u003cli\u003eCarefully locate the existing inline fuel filter. Loosen the clamps securing the fuel lines to both ends of the old filter.\u003c\/li\u003e\n\u003cli\u003eGently twist and pull the fuel lines off the filter. Be prepared for a small amount of residual fuel to drain out.\u003c\/li\u003e\n\u003cli\u003eNote the fuel flow direction arrow on the new filter. Install it so the arrow points toward the engine's carburetor.\u003c\/li\u003e\n\u003cli\u003eSlide the fuel lines onto the new filter and securely fasten the clamps. Ensure they are snug to prevent leaks.\u003c\/li\u003e\n\u003cli\u003eTurn the fuel supply back on and prime the engine if necessary. Thoroughly inspect the filter and connections for any signs of leaks before starting the engine.\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\u003csummary\u003eHow do I know if this fuel filter will fit my engine?\u003c\/summary\u003e\u003cp\u003eThis filter is designed for a wide array of Mercury inline engines (4-85+ HP) and select Johnson\/Evinrude models. The most reliable way to confirm fitment is to match your existing part number to one of the cross-references: Mercury 1399-3938, Sierra 18-7832, or Johnson\/Evinrude 0509400. Also, check the detailed compatibility table for your specific model.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a clogged or failing fuel filter?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include the engine sputtering or bogging down during acceleration, difficulty starting, rough idling, or a noticeable loss of overall power. In some cases, the engine may stall and refuse to restart. Visual inspection might reveal debris inside the filter if it has a clear housing.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the recommended replacement interval for this filter?\u003c\/summary\u003e\u003cp\u003eFor optimal engine health and performance, we recommend replacing your inline fuel filter at least once per season or every 100 hours of operation, whichever comes first. Consult your engine’s service manual for manufacturer-specific recommendations.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this filter for fuel-injected (EFI) or carbureted engines?\u003c\/summary\u003e\u003cp\u003eThis is an inline filter specifically designed for carbureted engines. It is particularly noted for use with systems that have a side bowl carburetor. It is not suitable for high-pressure fuel-injected (EFI\/DFI) systems.\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\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":50602603741499,"sku":"1399-3938","price":15.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/1399-3938_4f353e1f-30dc-4dd1-aa81-33532441ddad.jpg?v=1758594959"},{"product_id":"water-pump-impeller-fits-mercury-mariner-4-9-8-hp-outboards-replaces-47-89981","title":"Water Pump Impeller – Fits Mercury\/Mariner 4–9.8 HP Outboards (Replaces 47-89981)","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 replacement \u003cstrong\u003eWater Pump Impeller – Fits Mercury\/Mariner 4–9.8 HP Outboards (Replaces 47-89981)\u003c\/strong\u003e is designed for Mercury and Mariner 2-stroke outboard models from 3.9 HP to 10 HP (1965–1986) with an 11.60 mm shaft diameter. It ensures reliable engine cooling and performance.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct interchange for Mercury 47-89981, Sierra 18-3039, GLM 12270, CEF 500314, and Mallory 9-45305.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered as a direct-fit replacement for specified models.\u003c\/li\u003e\n\u003cli\u003eConstructed with a durable brass hub and neoprene blades.\u003c\/li\u003e\n\u003cli\u003eNote: This part is not compatible with 5 HP Mercury Mariner engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3039\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e12270\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCEF\u003c\/td\u003e\n        \u003ctd\u003e500314\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-45305\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\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\u003e39 1-Cylinder\u003c\/td\u003e\n        \u003ctd\u003e3.9\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eSerial number 2278851 and up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e40 (4 HP) 1-Cylinder\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eSerial number 2278851 and up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e4 HP 1-Cylinder USA\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e45, 4.5 1-Cylinder\u003c\/td\u003e\n        \u003ctd\u003e4.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e60 (6HP)\u003c\/td\u003e\n        \u003ctd\u003e6\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eSerial number 1916139 thru 2529894\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e7.5 HP\u003c\/td\u003e\n        \u003ctd\u003e7.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e75 (7.5HP)\u003c\/td\u003e\n        \u003ctd\u003e7.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e9.8 HP\u003c\/td\u003e\n        \u003ctd\u003e9.8\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e110 (10hp)\u003c\/td\u003e\n        \u003ctd\u003e10\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1965–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003ctd\u003eSerial number 1865779 and up\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller\u003c\/dd\u003e\n \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect-fit replacement\u003c\/dd\u003e\n \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eBrass Hub with Neoprene Blades\u003c\/dd\u003e\n \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eHeight: 14.40 mm (0.57\"), External Diameter: 32.00 mm (1.26\"), Internal Shaft Diameter: 11.60 mm (0.456\")\u003c\/dd\u003e\n \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e11 g (0.39 oz)\u003c\/dd\u003e\n \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003eManufacturer warranty may apply\u003c\/dd\u003e\n \u003cdt\u003eOther Attributes\u003c\/dt\u003e\n\u003cdd\u003eNot compatible with 5 HP Mercury Mariner engines\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 (47-89981)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the battery and remove the engine cover.\u003c\/li\u003e\n\u003cli\u003eDrain the lower unit gear lube.\u003c\/li\u003e\n\u003cli\u003eRemove the bolts securing the lower unit (gearcase) to the upper driveshaft housing.\u003c\/li\u003e\n\u003cli\u003eGently separate the lower unit from the upper housing. Be mindful of the shift shaft.\u003c\/li\u003e\n\u003cli\u003eLocate and unbolt the water pump housing.\u003c\/li\u003e\n\u003cli\u003eSlide the old impeller off the driveshaft, noting the keyway alignment.\u003c\/li\u003e\n\u003cli\u003eClean the housing and inspect for wear or damage. Lightly grease the new impeller and interior of the housing.\u003c\/li\u003e\n\u003cli\u003eInstall the new impeller onto the driveshaft, ensuring the key is in place and the blades are oriented correctly (typically bent in the direction of shaft rotation).\u003c\/li\u003e\n\u003cli\u003eReassemble the water pump housing, reattach the lower unit, and refill the gear lube with the correct type and amount.\u003c\/li\u003e\n\u003cli\u003eTest the engine in water, confirming a steady stream from the tell-tale port.\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 impeller fits my specific engine?\u003c\/summary\u003e\u003cp\u003eThis impeller fits a wide range of Mercury\/Mariner 2-stroke outboards from 3.9 to 9.8 HP made between 1965 and 1986. Please check the \"Engine \u0026amp; Model Compatibility\" table and verify your engine's model, horsepower, and serial number range. Crucially, this part is NOT for 5 HP models.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon signs include a weak or non-existent water stream from the \"tell-tale\" outlet, engine overheating alerts or steam, and reduced engine performance. An impeller should be inspected regularly and replaced as part of routine maintenance.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I replace my impeller?\u003c\/summary\u003e\u003cp\u003eFor preventative maintenance, it's recommended to replace the impeller every 1-2 years or every 100-200 hours of use, whichever comes first. Frequency should increase if operating in saltwater or sandy\/silty conditions.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this include the housing or gaskets?\u003c\/summary\u003e\u003cp\u003eNo, this listing is for the impeller only, as shown in the \"What's in the Box\" section. It does not include the full water pump kit with housing, wear plate, or gaskets.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM or aftermarket part?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement part, not an original equipment manufacturer (OEM) component. It is engineered to meet or exceed OEM specifications using comparable materials and is manufactured in an ISO 9001 certified facility, with batch inspections for quality control.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow much is shipping and how fast is it?\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly, with a typical transit time of 5–15 days for most regions. Standard shipping is free. If available for your location, expedited shipping options and costs will be presented at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use conditions. Should you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard return window for items that are unused and in their original condition. See our full 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 and specifications against 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":50717909254459,"sku":"17IM003KOC","price":18.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17IM003KOC.png?v=1762938183"},{"product_id":"water-pump-impeller-fits-mercury-marine-4-9-8-hp-2-stroke-outboards-replaces-47-89981","title":"Water Pump Impeller – Fits Mercury Marine 4-9.8 HP 2-Stroke Outboards (Replaces 47-89981)","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\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis high-quality \u003cstrong\u003eWater Pump Impeller – Fits Mercury Marine 4-9.8 HP 2-Stroke Outboards (Replaces 47-89981)\u003c\/strong\u003e is an aftermarket component engineered for a direct fit on various Mercury Marine 2-Stroke outboard motors, including 4, 4.5, 6, 7.5, and 9.8 HP models. It is designed to restore cooling system performance and prevent engine overheating.\u003c\/p\u003e\n  \u003cp\u003eThis part serves as a direct cross-reference for several part numbers, including Sierra 18-3039, Mercury 47-89981, Mercury 47-65957, Mercury 47-39074, CEF 500314, and GLM 12270.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eInstalls directly into the water pump housing.\u003c\/li\u003e\n    \u003cli\u003eConstructed from durable neoprene with a brass hub for reliable service.\u003c\/li\u003e\n    \u003cli\u003eFeatures 6 blades for efficient water circulation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-3039\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e47-65957\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e47-39074\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eCEF\u003c\/td\u003e\n          \u003ctd\u003e500314\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eGLM\u003c\/td\u003e\n          \u003ctd\u003e12270\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eFor Mercury\/Mariner engines, this impeller fits a specific range of 1- and 2-cylinder models. Please check your engine's serial number and original part number to ensure a correct match.\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\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e1-Cylinder\u003c\/td\u003e\n          \u003ctd\u003e4\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003eSerial number 2278851 and up, USA models\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e1-Cylinder\u003c\/td\u003e\n          \u003ctd\u003e4.5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e40 (4 HP)\u003c\/td\u003e\n          \u003ctd\u003e4\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003eSerial number 2278851 and up, 1-Cylinder\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e45, 4.5\u003c\/td\u003e\n          \u003ctd\u003e4.5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003e1-Cylinder\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e60 (6 HP)\u003c\/td\u003e\n          \u003ctd\u003e6\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003eSerial number 1916139 thru 2529894\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e7.5 HP\u003c\/td\u003e\n          \u003ctd\u003e7.5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e75 (7.5 HP)\u003c\/td\u003e\n          \u003ctd\u003e7.5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e9.8 HP\u003c\/td\u003e\n          \u003ctd\u003e9.8\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003eInside diameter 0.456 inch\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e110 (10 HP)\u003c\/td\u003e\n          \u003ctd\u003e10\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e47-89981\u003c\/td\u003e\n          \u003ctd\u003eSerial number 1865779 and up\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement in water pump housing\u003c\/dd\u003e\n    \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNeoprene with Brass Hub\u003c\/dd\u003e\n    \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eHeight: 14.40 mm, Overall Diameter: 32.00 mm, Shaft Diameter: 11.60 mm\u003c\/dd\u003e\n    \u003cdt\u003eInternal Diameter\u003c\/dt\u003e\n\u003cdd\u003e0.456 inch (11.58 mm)\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e11 g (0.458 oz)\u003c\/dd\u003e\n    \u003cdt\u003eEngine Type\u003c\/dt\u003e\n\u003cdd\u003e2-Stroke\u003c\/dd\u003e\n    \u003cdt\u003eCompatibility\u003c\/dt\u003e\n\u003cdd\u003eNot compatible with 5 HP Mercury Mariner engines\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 (47-89981)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the spark plug leads and the battery for safety.\u003c\/li\u003e\n    \u003cli\u003eDrain the gearcase oil from the lower unit.\u003c\/li\u003e\n    \u003cli\u003eUnbolt and carefully detach the lower unit from the engine's midsection.\u003c\/li\u003e\n    \u003cli\u003eLocate and unbolt the water pump housing cover.\u003c\/li\u003e\n    \u003cli\u003eRemove the old impeller, paying attention to its rotational direction. Clean any debris from the housing.\u003c\/li\u003e\n    \u003cli\u003eLightly lubricate the new impeller and the inside of the housing with a marine-safe lubricant.\u003c\/li\u003e\n    \u003cli\u003eInstall the new impeller by pushing down while turning the driveshaft in the direction of engine rotation to bend the blades correctly.\u003c\/li\u003e\n    \u003cli\u003eReinstall the water pump housing and torque its bolts to the manufacturer's specification.\u003c\/li\u003e\n    \u003cli\u003eReattach the lower unit, ensuring the driveshaft, shift shaft, and water tube are aligned.\u003c\/li\u003e\n    \u003cli\u003eRefill the lower unit with fresh gear oil before starting the engine.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this impeller fit my 5 HP Mercury engine?\u003c\/summary\u003e\n    \u003cp\u003eNo, this impeller has an internal diameter of 0.456\" and is specifically noted as not compatible with 5 HP Mercury Mariner engines. Always verify your part number and engine specifications before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow can I confirm this part fits my motor?\u003c\/summary\u003e\n    \u003cp\u003eThe best way is to compare your existing impeller's part number and dimensions to those listed here. Check the compatibility table for your engine model, HP, and serial number range. When in doubt, consult your engine's service manual.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the signs of a failing impeller?\u003c\/summary\u003e\n    \u003cp\u003eCommon signs of a worn or damaged impeller include the engine overheating at idle or low speeds, a weak or non-existent water stream from the \"tell-tale\" cooling outlet, and finding brittle, cracked, or broken blades during inspection.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I replace my impeller?\u003c\/summary\u003e\n    \u003cp\u003eFor preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1 to 2 years (or 100-200 hours of use), especially if operating in saltwater or sandy\/silty conditions.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency and quality.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the shipping speed \u0026amp; cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free to most regions; expedited options will appear at checkout where available.\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 part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our 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":50717909287227,"sku":"XV-1ZVG-PA5L","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/XV-1ZVG-PA5L.png?v=1762938184"},{"product_id":"cartridge-fuel-filter-fits-yamaha-9-9-90-hp-mercury-mariner-8-60-hp-suzuki-2-85-hp-tohatsu-9-9-90-hp-replaces-61n-24560-00-35-826964t-15410-93400-3ac-02230-0","title":"Cartridge Fuel Filter for Yamaha, Mercury\/Mariner, Suzuki and Tohatsu Outboards – Replaces 61N-24560-00, 35-826964T, 15410-93400 and 3AC-02230-0","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 cartridge fuel filter is an aftermarket replacement for selected gasoline fuel systems on Yamaha, Mercury, Mariner, Suzuki and Tohatsu outboard motors. It is intended to help remove fuel-system contaminants before fuel reaches the engine. Always compare the original filter, connections, dimensions and applicable engine information before ordering.\u003c\/p\u003e\n\u003cp\u003eThe filter is listed as an interchange for the OEM and aftermarket references shown below. These references are provided for identification and cross-reference purposes; they do not replace confirmation of the exact engine model, year, stroke, serial range and fuel-system configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCartridge-style filter for selected outboard gasoline applications.\u003c\/li\u003e\n  \u003cli\u003eClear housing supports visual inspection for visible debris or contamination.\u003c\/li\u003e\n  \u003cli\u003eDesigned for in-line installation where the original filter uses the same connection and flow arrangement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eCompare the number on your existing filter with the applicable reference for 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\u003eReference numbers\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e61N-24560-00-00; 655-24560-01-00; 655-24560-60-00; 655-24560-00-00; 648-24560-03-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-826964T; 35-8M0121336; 826964M; 826964T; 11931M; 8M121336; 95431M; 80617M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003e15410-93400; 15410-93401; 15410-93410; 15410-93411; 15410-94400; 15410-94401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3AC-02230-0; 3AD-02230-0; 3B7-02230-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-79910; 18-7735\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-37965\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 supplied application information covers selected Yamaha outboards from approximately 9.9 to 90 HP, Mercury\/Mariner outboards from approximately 8 to 60 HP, Suzuki outboards from approximately 2 to 85 HP, and Tohatsu outboards from approximately 9.9 to 90 HP. Applications may include both 2-stroke and 4-stroke models depending on the brand and engine configuration.\u003c\/p\u003e\n\u003cp\u003eSome listed Tohatsu applications include 25 and 30 HP 4-stroke models from 2006 onward. Mercury\/Mariner applications include selected small outboards and EFI configurations. Suzuki applications listed include selected 2-stroke models from 2 to 85 HP, while Yamaha applications listed are primarily 2-stroke outboards from 9.9 to 90 HP.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility Summary\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eListed application range\u003c\/th\u003e\n\u003cth\u003eStroke or configuration\u003c\/th\u003e\n\u003cth\u003eApplicable reference examples\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e9.9–90 HP\u003c\/td\u003e\n\u003ctd\u003eSelected 2-stroke outboards\u003c\/td\u003e\n\u003ctd\u003e61N-24560-00-00 and 655-series references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e8–60 HP\u003c\/td\u003e\n\u003ctd\u003eSelected 2-stroke and 4-stroke EFI models\u003c\/td\u003e\n\u003ctd\u003e35-826964T and related references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003e2–85 HP\u003c\/td\u003e\n\u003ctd\u003eSelected 2-stroke outboards\u003c\/td\u003e\n\u003ctd\u003e15410-93400 and related references\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e9.9–90 HP\u003c\/td\u003e\n\u003ctd\u003eSelected outboards; some 25–30 HP 4-stroke applications from 2006 onward\u003c\/td\u003e\n\u003ctd\u003e3B7-02230-0 and related references\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 Horsepower alone does not confirm fitment. Check the exact model designation, production year, stroke, serial-number range, fuel-system layout, filter connections and the original part number before installation.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eCartridge fuel filter\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eIn-line replacement\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003ePlastic\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eClear or transparent housing with black end caps\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003eApproximately 0.1 kg (0.22 lb)\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected marine outboard fuel systems\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Cartridge fuel filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eTurn the engine off, allow it to cool and follow the engine manufacturer’s fuel-system safety procedure.\u003c\/li\u003e\n  \u003cli\u003eRelieve fuel-system pressure where applicable and place an absorbent cloth beneath the filter.\u003c\/li\u003e\n  \u003cli\u003eClamp or otherwise secure the fuel lines as directed by the service manual to reduce fuel spillage.\u003c\/li\u003e\n  \u003cli\u003eNote the direction of the fuel-flow arrow and the position of the original filter before removal.\u003c\/li\u003e\n  \u003cli\u003eRemove the old filter and install the replacement with the flow arrow pointing toward the engine.\u003c\/li\u003e\n  \u003cli\u003eSecure the fuel lines and clamps, then remove any temporary line clamps.\u003c\/li\u003e\n  \u003cli\u003ePrime the fuel system according to the engine manual 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\n  \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n  \u003cp\u003eCompare the original filter’s part number, housing and connections with the references and application information above. Confirm the exact engine model, year, stroke and serial range in the manufacturer’s service or parts information. Do not rely on horsepower alone.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs that a fuel filter needs replacement?\u003c\/summary\u003e\n  \u003cp\u003ePossible symptoms include difficult starting, rough idle, hesitation, sputtering at higher speed or loss of power. Visible debris or contamination in a clear filter housing can also indicate that service is needed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the filter be replaced?\u003c\/summary\u003e\n  \u003cp\u003eReplacement intervals vary by engine, fuel quality, storage conditions and the manufacturer’s service schedule. Inspect and replace the filter according to the engine owner’s or service manual rather than relying on a universal interval.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this filter for diesel fuel?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is for selected gasoline-powered outboard fuel systems. Do not use it with diesel fuel unless the engine manufacturer specifically approves the application.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM filter?\u003c\/summary\u003e\n  \u003cp\u003eThis is an aftermarket replacement. The listed OEM and aftermarket numbers are reference numbers used to help identify compatible applications; the product is not represented as a genuine OEM component.\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 are determined by the order destination and the current store policies. Review the applicable checkout and policy information before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\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\u003eUse appropriate eye and skin protection when handling gasoline.\u003c\/li\u003e\n  \u003cli\u003eVerify the filter direction, connections and application before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eStop immediately and correct the issue if any fuel leak is found after installation.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when the correct procedure is unclear.\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 selected boat and outboard applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Information\u003c\/strong\u003e — Use part-number, model and configuration checks to help select the correct component.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Maintenance\u003c\/strong\u003e — Follow the engine manufacturer’s service procedures for safe installation and operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718270423355,"sku":"FA-BWAZ-9TE8","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/FA-BWAZ-9TE8.png?v=1762958705"},{"product_id":"fuel-pump-fits-johnson-evinrude-4-5-25hp-mercury-replaces-397839-391638-395091-397274-878965","title":"Fuel Pump Replacement for Select Johnson\/Evinrude 4.5–25 HP Applications – Cross-References 397839, 391638, 395091, 397274 and Mercury 878965","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\u003eoutboard engine fuel pump\u003c\/strong\u003e is intended as a replacement for select Johnson\/Evinrude applications, including listed 4.5 HP, 6 HP, 8 HP, 9.9 HP, 15 HP, 20 HP and 25 HP models. Fitment depends on the exact engine model, year, stroke configuration and original pump, so compare the applicable part number and pump design before ordering.\u003c\/p\u003e\n\u003cp\u003eThe pump is listed as a replacement or cross-reference for Johnson\/Evinrude numbers \u003cstrong\u003e397839\u003c\/strong\u003e, \u003cstrong\u003e391638\u003c\/strong\u003e, \u003cstrong\u003e395091\u003c\/strong\u003e and \u003cstrong\u003e397274\u003c\/strong\u003e, as well as Mercury \u003cstrong\u003e878965\u003c\/strong\u003e. Additional aftermarket references include Sierra 18-7350, Mallory 9-35350, EMP 1399-07350, Redline RL7350 and Quicksilver 8M6010285. These references should be used together with a visual and application check; a number match alone does not confirm every engine configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement fuel pump for selected outboard applications.\u003c\/li\u003e\n  \u003cli\u003eDiaphragm-type pump design with barbed fuel-hose connections.\u003c\/li\u003e\n  \u003cli\u003eDesigned for replacement installation where the original pump, mounting pattern and hose connections match.\u003c\/li\u003e\n  \u003cli\u003eAftermarket component; not sold as a genuine OEM part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references to compare your existing fuel pump and engine documentation 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\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e391638\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e395091\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e397274\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e878965\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-7350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-35350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEMP\u003c\/td\u003e\n\u003ctd\u003e1399-07350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRedline\u003c\/td\u003e\n\u003ctd\u003eRL7350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eQuicksilver\u003c\/td\u003e\n\u003ctd\u003e8M6010285\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\u003eApplication information for this replacement pump is broad and may vary by exact model and production year. Keep the horsepower, year, stroke and model conditions together when checking fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJohnson\/Evinrude:\u003c\/strong\u003e The listed application range includes selected 4.5 HP, 6 HP, 8 HP, 9.9 HP, 15 HP, 20 HP and 25 HP outboards, with commonly cited model years from 1968 through 1992. The 20 HP and 25 HP applications should be treated as model-specific and verified against the original pump and engine parts information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMercury:\u003c\/strong\u003e The pump is cross-referenced to Mercury part number 878965, but a complete Mercury model list is not established here. Verify the exact Mercury model, year, mounting arrangement, hose connections and original part number 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\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\u003eFitment Note\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eApplication-specific\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eReported in some application listings; verify carefully.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eApplication-specific\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eReported in some application listings; verify carefully.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e878965\u003c\/td\u003e\n\u003ctd\u003eCross-reference only; confirm the exact Mercury application.\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 engine fuel pump\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement installation for matching applications\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n  \u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003ePump Design\u003c\/dt\u003e\n  \u003cdd\u003eDiaphragm-type fuel pump\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n  \u003cdd\u003eTwo barbed fuel-hose fittings\u003c\/dd\u003e\n  \u003cdt\u003eHousing Construction\u003c\/dt\u003e\n  \u003cdd\u003eMetal base with plastic or composite upper section\u003c\/dd\u003e\n  \u003cdt\u003eHousing Appearance\u003c\/dt\u003e\n  \u003cdd\u003eBlack with metal-colored accents\u003c\/dd\u003e\n  \u003cdt\u003eApproximate Weight\u003c\/dt\u003e\n  \u003cdd\u003e0.25 kg (0.55 lb), where applicable\u003c\/dd\u003e\n  \u003cdt\u003eFitment Requirement\u003c\/dt\u003e\n  \u003cdd\u003eOriginal pump number, mounting holes, hose routing and pump configuration must match.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Fuel pump assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Mounting gasket, where included with the applicable package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2\u003c\/span\u003e x Cable ties, only where included in the applicable aftermarket package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackage contents can vary by supplier or package configuration. Confirm the supplied contents before installation, and do not assume that optional accessories are included unless shown or stated with the order.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and observe all fuel-system safety precautions before beginning work.\u003c\/li\u003e\n  \u003cli\u003eLabel the inlet and outlet fuel lines, then disconnect them from the old pump.\u003c\/li\u003e\n  \u003cli\u003eRemove the fasteners and take the old fuel pump off the engine block.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surface and remove old gasket material without damaging the sealing surface.\u003c\/li\u003e\n  \u003cli\u003eInstall the correct new gasket if one is supplied or specified for the application.\u003c\/li\u003e\n  \u003cli\u003ePosition the replacement pump with the correct orientation and align the mounting holes.\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 inlet and outlet fittings and secure them properly.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery, prime the fuel system according to the service manual and inspect for leaks before starting the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAlways follow the engine manufacturer's service information. If the mounting pattern, hose routing or pump orientation differs from the original, stop and verify compatibility before installation.\u003c\/p\u003e\n\n\u003ch2\u003eTroubleshooting and 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 original pump's manufacturer number with the reference list, then verify the exact engine brand, model, year, horsepower, stroke configuration, mounting pattern, hose connections and pump orientation. For Mercury applications, the 878965 cross-reference should not be treated as a complete model list.\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, sputtering, stalling, loss of power, inconsistent operation at higher speed and poor fuel delivery. These symptoms can also be caused by blocked filters, damaged fuel lines, carburetor problems or other fuel-system faults, so diagnose the complete system before replacing the pump.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the pump be replaced?\u003c\/summary\u003e\n  \u003cp\u003eThere is no universal replacement interval for this type of pump. Inspect it when fuel delivery problems occur, during fuel-system service or when the pump, gasket or connected hoses show signs of damage, leakage or deterioration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs a gasket included?\u003c\/summary\u003e\n  \u003cp\u003eA gasket may be included with the applicable package, but package contents can vary. Confirm the product package before installation and use the correct gasket for the engine application.\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 describes an aftermarket replacement fuel pump. The manufacturer and aftermarket reference numbers are provided for comparison and application research; they do not change the component's aftermarket status.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if the pump does not match my old part?\u003c\/summary\u003e\n  \u003cp\u003eDo not force the installation or modify the pump, gasket or fuel lines. Recheck the engine model and original part number, and contact support before installation if the mounting pattern, connections or orientation differ.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWork in a well-ventilated area away from open flames, sparks and ignition sources.\u003c\/li\u003e\n  \u003cli\u003eRelieve fuel-system pressure where applicable and prevent spilled fuel from contacting hot engine surfaces.\u003c\/li\u003e\n  \u003cli\u003eVerify the images, dimensions, connections and reference numbers against the original pump before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not rely on horsepower alone to establish fitment; exact model, year, stroke and serial or production conditions may apply.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not a genuine OEM component.\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 — We offer replacement components for a range of marine repair applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Support\u003c\/strong\u003e — Compare original part numbers and engine details before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValue-Oriented Selection\u003c\/strong\u003e — Aftermarket alternatives are presented with applicable reference information to support informed purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718272258363,"sku":"OE-BF1O-T0MP","price":31.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/OE-BF1O-T0MP.png?v=1762958772"},{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-3-5-9-8-hp-replaces-47-89980t1-89980q1","title":"Water Pump Housing Kit for Mercury\/Mariner 4, 4.5, 7.5 \u0026 9.8 HP 2-Stroke (1975–1985) – Replaces OEM 47-89980T1","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 \u003cstrong\u003eWater Pump Housing Kit\u003c\/strong\u003e is a replacement water-pump service assembly for selected Mercury and Mariner 2-stroke outboards rated at 4, 4.5, 7.5, and 9.8 HP from 1975 through 1985. The kit is intended for applications using the 0.438-inch impeller inside diameter and the impeller associated with OEM reference 47-89980T1.\u003c\/p\u003e\n\u003cp\u003eThe catalog application identifies this configuration as a water pump housing kit that includes the housing-related service components needed to renew the pump assembly. Confirm the engine model, production year, existing housing, impeller dimensions, and OEM reference before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete water pump housing kit for specified Mercury\/Mariner 2-stroke applications.\u003c\/li\u003e\n  \u003cli\u003eDesigned for applications using a 0.438-inch impeller inside diameter.\u003c\/li\u003e\n  \u003cli\u003eSupplied with the housing, impeller, wear plate, O-rings, and seal listed below.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement; not an original Mercury component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following reference to compare this kit with the applicable manufacturer part number.\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 Type\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\u003e47-89980T1\u003c\/td\u003e\n        \u003ctd\u003eOEM application 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\u003eFitment must be confirmed against the exact engine model and year. The application information below is limited to the catalog range associated with OEM reference 47-89980T1.\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\u003eEngine Type\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Reference\u003c\/th\u003e\n        \u003cth\u003eApplication Note\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\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89980T1\u003c\/td\u003e\n        \u003ctd\u003eUses 0.438-inch impeller inside diameter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e4.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89980T1\u003c\/td\u003e\n        \u003ctd\u003eUses 0.438-inch impeller inside diameter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e7.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89980T1\u003c\/td\u003e\n        \u003ctd\u003eUses 0.438-inch impeller inside diameter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e9.8\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89980T1\u003c\/td\u003e\n        \u003ctd\u003eUses 0.438-inch impeller inside diameter\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump housing kit\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eMercury\/Mariner 2-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eRated Horsepower\u003c\/dt\u003e\n  \u003cdd\u003e4, 4.5, 7.5, and 9.8 HP\u003c\/dd\u003e\n  \u003cdt\u003eApplication Years\u003c\/dt\u003e\n  \u003cdd\u003e1975–1985\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Inside Diameter\u003c\/dt\u003e\n  \u003cdd\u003e0.438 inch\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement water pump service assembly\u003c\/dd\u003e\n  \u003cdt\u003ePart Status\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement, not OEM\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 sleeve\u003c\/li\u003e\n  \u003cli\u003e1 x Water pump impeller\u003c\/li\u003e\n  \u003cli\u003e1 x Wear plate\u003c\/li\u003e\n  \u003cli\u003e1 x O-ring\u003c\/li\u003e\n  \u003cli\u003e1 x O-ring\u003c\/li\u003e\n  \u003cli\u003e1 x Water pump seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComponent identifiers may vary by production batch or packaging. Compare the supplied parts with the removed assembly before installation.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and remove the spark plug leads before servicing the outboard.\u003c\/li\u003e\n  \u003cli\u003ePlace a drain pan beneath the gearcase and drain the lower-unit lubricant according to the service manual.\u003c\/li\u003e\n  \u003cli\u003eRemove the fasteners securing the gearcase to the midsection, then lower the gearcase carefully.\u003c\/li\u003e\n  \u003cli\u003eRemove the water pump housing and note the orientation of the impeller, key, wear plate, seals, and gaskets.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surfaces and remove old gasket material, corrosion, and debris.\u003c\/li\u003e\n  \u003cli\u003eInstall the supplied wear plate, seals, O-rings, and related pump components in the same orientation as the original assembly.\u003c\/li\u003e\n  \u003cli\u003eInstall the impeller on the driveshaft with the drive key correctly positioned. Lubricate the pump components as recommended by the engine service manual.\u003c\/li\u003e\n  \u003cli\u003eReinstall the housing and tighten its fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReattach the gearcase and refill the lower unit with the correct lubricant.\u003c\/li\u003e\n  \u003cli\u003eRun the engine only in water or with an approved flushing device, then verify a steady cooling-water stream and check for 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 that this kit fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eConfirm that your outboard is a Mercury or Mariner 2-stroke rated at 4, 4.5, 7.5, or 9.8 HP, produced during 1975–1985, and that the existing water-pump application uses OEM reference 47-89980T1 and a 0.438-inch impeller inside diameter. The exact model designation and service-manual information should be checked before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an impeller-only kit?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is for a water pump housing kit. It includes the water-pump service components listed in the package contents rather than an impeller alone.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a worn water-pump assembly?\u003c\/summary\u003e\n  \u003cp\u003ePossible symptoms include a weak or absent tell-tale stream, overheating, steam, reduced cooling-water flow, or visible damage to the impeller, housing, wear plate, or seals. Stop operation if the engine overheats and inspect the cooling system.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShould the impeller and housing be replaced together?\u003c\/summary\u003e\n  \u003cp\u003eReplacing worn pump components together can help restore the intended sealing and pumping surfaces. Inspect the driveshaft key, housing, wear plate, seals, and mating surfaces during service and replace any damaged parts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs anything else needed for installation?\u003c\/summary\u003e\n  \u003cp\u003eDepending on the condition of the engine and the service procedure, additional items may be required, such as lower-unit lubricant, suitable marine lubricant, replacement fasteners, or gaskets not included in this package. Follow the engine manufacturer's service instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is an aftermarket replacement kit intended for the stated application. The OEM number is provided only as an application reference.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the exact model, horsepower, stroke, year, OEM reference, and impeller dimensions before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not operate an outboard without an adequate water supply for cooling.\u003c\/li\u003e\n  \u003cli\u003eUse the engine service manual for torque values, sealing procedures, gearcase removal, and final testing.\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\u003eThis product is an aftermarket replacement and is not manufactured by Mercury or Mariner.\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 routine marine service and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Compatibility information is organized by engine type, horsepower, stroke, year, and reference number.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — Review the application details and compare the original assembly before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723963666747,"sku":"6Y-JF9V-8O9J","price":30.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/6Y-JF9V-8O9J.png?v=1763038507"},{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-3-9-9-8-hp-replaces-47-89980t1-47-89980q1","title":"Water Pump Impeller Kit for Mercury\/Mariner 3.5–9.8 HP 2-Stroke Outboards — Replaces 47-89980T1 and 47-89980Q1","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\u003eWater Pump Impeller Kit\u003c\/strong\u003e is intended for selected Mercury and Mariner 2-stroke outboards from 3.5 to 9.8 HP. The listed applications cover models manufactured between 1975 and 1986 and require an impeller with a 0.438-inch hub diameter. Always confirm the complete engine model, production year, and serial number before ordering.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket replacement kit is listed for use in place of Mercury 47-89980T1 and 47-89980Q1, Sierra 18-3006, GLM 700-12271, and SEI 96-260-03AK references.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned as a direct replacement for the specified water-pump applications.\u003c\/li\u003e\n  \u003cli\u003eNeoprene rubber impeller provides dependable water flow through the raw-water cooling system.\u003c\/li\u003e\n  \u003cli\u003eKit includes the impeller, outer plate, key, guide sleeve, seal, and O-rings for a complete water-pump service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references together with your engine model and serial number to confirm compatibility.\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\u003e47-89980T1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89980Q1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e700-12271\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEI\u003c\/td\u003e\n\u003ctd\u003e96-260-03AK\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 fitment range for this kit. Model, horsepower, stroke, year, manufacturing location, and serial range must be considered together. Do not rely on horsepower alone to confirm fitment.\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\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eModel 110\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in USA: Serial Range 5206550 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in USA: Serial Range 5206550 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in USA: Serial Range 5595532 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in USA: Serial Range 5595532–0A809600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e3.6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eSerial Range 5404657 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eSerial Range 6202173 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eModel 110\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Australia: Serial Range 8057545 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Australia: Serial Range 8057545 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Australia: Serial Range 8068065 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Australia: Serial Range 8068065 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eModel 110\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Belgium: Serial Range 9217756 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Belgium: Serial Range 9217756 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Belgium: Serial Range 9258281 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Belgium: Serial Range 9258281–9477829\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eModel 110\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Canada: Serial Range 7125388 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Canada: Serial Range 7125388 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Canada: Serial Range 7147238 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e1-Cyl.\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1986\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003ctd\u003eMade in Canada: Serial Range 7143688 \u0026amp; Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater pump impeller kit\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement\u003c\/dd\u003e\n\u003cdt\u003eImpeller ID\u003c\/dt\u003e\n\u003cdd\u003e0.438 in. (11.13 mm)\u003c\/dd\u003e\n\u003cdt\u003eImpeller OD\u003c\/dt\u003e\n\u003cdd\u003e1.26 in. (32 mm)\u003c\/dd\u003e\n\u003cdt\u003eImpeller Height\u003c\/dt\u003e\n\u003cdd\u003e0.57 in. (14.4 mm)\u003c\/dd\u003e\n\u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n\u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNeoprene rubber impeller\u003c\/dd\u003e\n\u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n\u003cdt\u003eOperating Temperature\u003c\/dt\u003e\n\u003cdd\u003eUp to 105°C (221°F)\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eRaw-water cooling systems in the specified marine engines\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, reference 47-89980\u003c\/li\u003e\n\u003cli\u003e1 × Cartridge outer plate, reference 46895\u003c\/li\u003e\n\u003cli\u003e1 × Woodruff impeller key\u003c\/li\u003e\n\u003cli\u003e1 × Water-inlet-tube guide sleeve\u003c\/li\u003e\n\u003cli\u003e1 × Seal\u003c\/li\u003e\n\u003cli\u003e2 × O-rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the battery and remove the engine cover.\u003c\/li\u003e\n\u003cli\u003ePlace a drain pan under the lower unit and remove the gearcase oil drain screw to drain the oil.\u003c\/li\u003e\n\u003cli\u003eDisconnect the shift linkage and remove the bolts securing the lower unit to the engine.\u003c\/li\u003e\n\u003cli\u003eCarefully lower and remove the gearcase assembly.\u003c\/li\u003e\n\u003cli\u003eRemove the water-pump housing to access the impeller, and note the orientation of the original parts.\u003c\/li\u003e\n\u003cli\u003eRemove the old impeller, key, plate, and seals. Clean the mating surfaces thoroughly.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement components in the reverse order of removal. Lightly lubricate the new impeller as appropriate for the installation.\u003c\/li\u003e\n\u003cli\u003eOrient the impeller blades correctly inside the housing, typically by turning the driveshaft clockwise while lowering the housing.\u003c\/li\u003e\n\u003cli\u003eReinstall the water-pump housing and tighten the fasteners to the engine manufacturer’s specifications.\u003c\/li\u003e\n\u003cli\u003eReassemble the lower unit, reconnect the shift linkage, and refill the gearcase oil.\u003c\/li\u003e\n\u003cli\u003eReconnect the battery and test the engine in an appropriate water source to confirm proper water circulation.\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 impeller kit fits my engine?\u003c\/summary\u003e\u003cp\u003eConfirm that your engine is a listed Mercury or Mariner 2-stroke model in the 3.5–9.8 HP range, then match the model, year, manufacturing location, and serial number with the compatibility table. Also compare the original impeller and key arrangement before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include a weak or absent tell-tale stream, an overheating warning, or reduced engine performance. A worn impeller may have cracked, brittle, deformed, or missing blades.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I replace the water-pump impeller?\u003c\/summary\u003e\u003cp\u003eInspect the impeller regularly and replace it according to the engine manufacturer’s maintenance schedule. Frequent operation in sandy or silty water may require more frequent inspection and replacement.\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 listed for the referenced Mercury, Mariner, Sierra, GLM, and SEI applications. It is not manufactured by Mercury Marine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow fast is shipping?\u003c\/summary\u003e\u003cp\u003eTypical transit is 5–15 days. Standard shipping is free, and expedited options may be available at checkout depending on destination.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the warranty and return terms?\u003c\/summary\u003e\u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the applicable policy period for unused items in their original condition.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the engine model, year, serial number, original part, dimensions, and key arrangement before purchase.\u003c\/li\u003e\n\u003cli\u003eDo not install the part if the original component differs from the listed specifications or fitment details.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement part, not an original-equipment manufacturer component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when you are not familiar 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\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts designed for demanding 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 supported by consistent materials and quality-control processes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723963699515,"sku":"20KM005-QM","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/20KM005-QM.png?v=1763038508"},{"product_id":"water-pump-impeller-repair-kit-fits-mercury-mariner-3-9-9-8-hp-replaces-46-92970a5-47-89980t1","title":"Water Pump Impeller Repair Kit – Fits Mercury\/Mariner 3.9–9.8 HP 2-Stroke Outboards (Replaces 46-92970A5, 47-89980T1)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003ewater pump impeller repair kit\u003c\/strong\u003e is designed for selected Mercury and Mariner 2-stroke outboard engines rated at 3.9, 4, 4.5, 6, 7.5, and 9.8 HP. The listed applications cover model years from 1975 through 1986, subject to the model, market, and engine serial-number conditions shown below.\u003c\/p\u003e\n\u003cp\u003eThe kit replaces or cross-references Mercury part numbers \u003cstrong\u003e46-92970A5\u003c\/strong\u003e, \u003cstrong\u003e47-89980T1\u003c\/strong\u003e, and \u003cstrong\u003e47-89980Q1\u003c\/strong\u003e. It is intended for water-pump assemblies using a \u003cstrong\u003e0.438-inch (11.13 mm) impeller insert\u003c\/strong\u003e. Always compare the original water-pump assembly, impeller insert, and engine serial number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls in the lower-unit gearcase to restore water-pump and engine-cooling performance.\u003c\/li\u003e\n\u003cli\u003eIncludes a water-pump housing, cover assembly, face plate, impeller, cup insert, key, seals, O-rings, rubber ring, and washer.\u003c\/li\u003e\n\u003cli\u003eUses a marine-grade nylon PA66 housing and stainless-steel SS316 wear-plate and liner components as listed for this kit.\u003c\/li\u003e\n\u003cli\u003eThe 0.438-inch impeller insert size is a critical fitment dimension.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these references to compare the replacement kit with the part number marked on the original water-pump assembly. Part-number references do not replace verification of engine model, year, market, serial number, and impeller dimensions.\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\u003e46-92970A5\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89980T1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89980Q1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eQuickMarine\u003c\/td\u003e\n\u003ctd\u003e92970A5\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 Mercury and Mariner 2-stroke outboards. Confirm the complete engine model and serial number before installation, because production-market and serial-number changes can affect water-pump fitment.\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\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e3.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–1986\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eVerify the 0.438-inch impeller insert size.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1985 (USA)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial range: 5595532–0A809600.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1986 (BEL)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial range: 9258281–9477829.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1986 (CAN)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 7143688 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1986 (AUS)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 8068065 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985 (USA)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 5595532 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985 (BEL)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 9258281 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985 (CAN)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 7147238 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985 (AUS)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 8068065 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–1986\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eVerify the 0.438-inch impeller insert size.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986 (USA)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 5206550 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986 (BEL)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 9217756 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986 (CAN)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 7125388 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986 (AUS)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 8057545 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985 (USA)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 5206550 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985 (BEL)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 9217756 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985 (CAN)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 7125388 and later.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1985 (AUS)\u003c\/td\u003e\n\u003ctd\u003e46-92970A5\u003c\/td\u003e\n\u003ctd\u003eSerial 8057545 and later.\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\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Mercury and Mariner 2-stroke outboard water-pump assemblies\u003c\/dd\u003e\n  \u003cdt\u003eInstallation Location\u003c\/dt\u003e\n\u003cdd\u003eLower-unit gearcase\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement, subject to model and serial-number verification\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine-grade nylon PA66\u003c\/dd\u003e\n  \u003cdt\u003eWear Plate and Liner Material\u003c\/dt\u003e\n\u003cdd\u003eStainless steel SS316\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Insert Size\u003c\/dt\u003e\n\u003cdd\u003e0.438 inch (11.13 mm)\u003c\/dd\u003e\n  \u003cdt\u003eApproximate Weight\u003c\/dt\u003e\n\u003cdd\u003e159 g (5.6 oz)\u003c\/dd\u003e\n  \u003cdt\u003ePart Type\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement\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 housing\u003c\/li\u003e\n  \u003cli\u003e1 × Cover assembly\u003c\/li\u003e\n  \u003cli\u003e1 × Face plate (wear plate)\u003c\/li\u003e\n  \u003cli\u003e1 × Water-pump impeller\u003c\/li\u003e\n  \u003cli\u003e1 × Cup insert\u003c\/li\u003e\n  \u003cli\u003e1 × Woodruff impeller key\u003c\/li\u003e\n  \u003cli\u003e1 × Seal\u003c\/li\u003e\n  \u003cli\u003e2 × O-rings\u003c\/li\u003e\n  \u003cli\u003e1 × Rubber ring\u003c\/li\u003e\n  \u003cli\u003e1 × Oil seal\/O-ring\u003c\/li\u003e\n  \u003cli\u003e1 × Washer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and place the outboard in neutral.\u003c\/li\u003e\n  \u003cli\u003ePlace a drain pan under the lower unit and drain the gearcase oil as required by the engine service procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the bolts securing the lower unit to the upper leg assembly.\u003c\/li\u003e\n  \u003cli\u003eLower the gearcase carefully, taking care around the shift shaft, driveshaft, and water tube.\u003c\/li\u003e\n  \u003cli\u003eRemove the old water-pump housing assembly from the lower unit.\u003c\/li\u003e\n  \u003cli\u003eClean the driveshaft, splines, keyway, and all mounting surfaces thoroughly.\u003c\/li\u003e\n  \u003cli\u003eInstall the new key and impeller. Confirm the impeller vanes are oriented correctly for the direction of rotation specified by the engine service information.\u003c\/li\u003e\n  \u003cli\u003eInstall the new housing, cover, wear plate, cup insert, seals, and O-rings. Tighten fasteners to the engine manufacturer’s specified torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit while aligning the driveshaft, water tube, and shift shaft correctly.\u003c\/li\u003e\n  \u003cli\u003eRefill the gearcase with the correct marine gear oil to the specified level.\u003c\/li\u003e\n  \u003cli\u003eRun the engine with an appropriate water supply and confirm a strong, steady cooling-water tell-tale stream before normal operation.\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 engine?\u003c\/summary\u003e\n  \u003cp\u003eCheck the engine brand, model, horsepower, stroke, market, year, and serial number against the compatibility table. Also verify that the original water-pump assembly uses a 0.438-inch (11.13 mm) impeller insert and compare the original part number before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include a weak or missing tell-tale stream, an overheating alarm, abnormal heat, or steam from the exhaust. Continuing to operate an engine with inadequate cooling can cause severe damage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I inspect or replace the impeller?\u003c\/summary\u003e\n  \u003cp\u003eInspect the impeller during scheduled maintenance and replace it when the vanes are worn, cracked, permanently set, or damaged. Replacement intervals depend on the engine manufacturer’s service schedule and operating conditions; saltwater, sand, and silt can accelerate wear.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhy are there different serial ranges for the same horsepower?\u003c\/summary\u003e\n  \u003cp\u003eManufacturers may use different component specifications during production runs and across markets such as the USA, Belgium, Canada, and Australia. The complete serial number helps identify the correct engine configuration.\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 Mercury water-pump references. Compare the original components and verify fitment before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if the components do not match my original assembly?\u003c\/summary\u003e\n  \u003cp\u003eDo not force installation or operate the engine. Recheck the engine model, serial number, market, original part number, and impeller insert size before contacting the seller for assistance.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, year, market, serial number, original part number, and impeller insert size before purchase.\u003c\/li\u003e\n  \u003cli\u003eCompare the replacement components with the original assembly before installation.\u003c\/li\u003e\n  \u003cli\u003eNever run an outboard without an adequate water supply.\u003c\/li\u003e\n  \u003cli\u003eFollow the engine manufacturer’s service manual for disassembly, torque values, gear-oil service, and testing procedures.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when lower-unit service experience or the correct service information is unavailable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Replacement components for routine outboard maintenance and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment-Focused Listings\u003c\/strong\u003e — Product references and compatibility information are provided to help you compare the original part before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Installation Planning\u003c\/strong\u003e — Verify your engine details and original components before beginning service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723963961659,"sku":"24KM017-QM","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM017-QM.png?v=1763038526"},{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-2-stroke-3-9hp-9-8hp-replaces-47-89981q1","title":"Water Pump Impeller Service Kit – Mercury\/Mariner 2-Stroke 4HP, 4.5HP, 7.5HP \u0026 9.8HP (1975–1985), Replaces OEM 47-89981Q1","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; 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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eWater Pump Impeller Service Kit\u003c\/strong\u003e is intended for selected Mercury and Mariner 2-stroke outboard applications rated at 4HP, 4.5HP, 7.5HP and 9.8HP from approximately 1975 through 1985. The application uses a driveshaft connection with a 0.456-inch inner diameter. Always confirm the engine model and serial-number range before ordering.\u003c\/p\u003e\n\u003cp\u003eThis impeller service kit is listed as a replacement for Mercury OEM part \u003cstrong\u003e47-89981Q1\u003c\/strong\u003e. Catalog references identify the corresponding impeller as part 89810 and distinguish it from the similar 0.438-inch-inside-diameter application associated with OEM reference 47-89980T1.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned as a replacement impeller service kit for the listed Mercury and Mariner 2-stroke applications.\u003c\/li\u003e\n  \u003cli\u003eNeoprene rubber impeller with a brass hub, as specified for this replacement component.\u003c\/li\u003e\n  \u003cli\u003eSuitable for water-pump maintenance when the existing housing and related components are serviceable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the references below to compare the application with your original part. These numbers identify the replacement application and should not be used without confirming the engine details.\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 Reference\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eApplication Note\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury OEM\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003ePrimary OEM reference for the 0.456-inch-inside-diameter application\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury impeller reference\u003c\/td\u003e\n        \u003ctd\u003e89810\u003c\/td\u003e\n        \u003ctd\u003eImpeller identified with the applicable water-pump service-kit listing\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 catalog application is limited to the following general Mercury and Mariner 2-stroke outboard ratings and production period. Horsepower and year alone may not identify every application; verify the complete engine model and serial 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\u003eEngine Type\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eApproximate Years\u003c\/th\u003e\n        \u003cth\u003eOEM Reference\u003c\/th\u003e\n        \u003cth\u003eFitment Detail\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\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003e0.456-inch impeller inside diameter application\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e4.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003e0.456-inch impeller inside diameter application\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e7.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003e0.456-inch impeller inside diameter application\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e9.8\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1985\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003e0.456-inch impeller inside diameter application\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 service kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement installation in the existing water-pump assembly\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Inside Diameter\u003c\/dt\u003e\n  \u003cdd\u003e0.456 inches\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n  \u003cdd\u003eApproximately 32mm diameter × 14.4mm height (1.26in × 0.57in)\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eNeoprene rubber with brass hub\u003c\/dd\u003e\n  \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n  \u003cdd\u003e6\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n  \u003cdd\u003eRefer to the applicable order and warranty policy\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 service-kit component\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The available catalog evidence identifies the application as an impeller service kit. It does not establish that a water-pump housing, wear plate, gasket set or other hardware is included. Inspect the package received before beginning the repair.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eSwitch off the engine, remove the ignition key and follow the manufacturer's safety procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit or gearcase according to the engine service manual.\u003c\/li\u003e\n  \u003cli\u003eRemove the water-pump cover and inspect the housing, wear surfaces, key and fasteners.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller and note the direction of the vanes.\u003c\/li\u003e\n  \u003cli\u003eClean the housing and mating surfaces. Replace worn or damaged water-pump components before reassembly.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement impeller with the correct key and with the vanes oriented in the direction specified by the service manual.\u003c\/li\u003e\n  \u003cli\u003eUse only a lubricant approved for the application if lubrication is required during installation.\u003c\/li\u003e\n  \u003cli\u003eReassemble the pump and lower unit, tightening fasteners to the manufacturer's specifications.\u003c\/li\u003e\n  \u003cli\u003eRun the engine only in an appropriate water supply or test tank and confirm a strong cooling-water discharge before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm this impeller fits my Mercury or Mariner engine?\u003c\/summary\u003e\n  \u003cp\u003eMatch the engine brand, 2-stroke configuration, horsepower, approximate production year and complete serial number with the manufacturer's service information. Also compare the original impeller's inside diameter. The application described here uses a 0.456-inch inside diameter and is listed for 4HP, 4.5HP, 7.5HP and 9.8HP engines from approximately 1975–1985.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between the 0.456-inch and 0.438-inch applications?\u003c\/summary\u003e\n  \u003cp\u003eThe 0.456-inch application uses a different driveshaft connection from the similar 0.438-inch application. Do not substitute between them based only on horsepower or appearance. Compare the original part, driveshaft and engine identification before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this listing include a complete water-pump housing?\u003c\/summary\u003e\n  \u003cp\u003eNo complete housing is identified by the available product information. This listing is for the impeller service-kit component. Inspect the water-pump housing, wear surfaces, key and gaskets, and replace any worn parts that are not serviceable.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should a water-pump impeller be replaced?\u003c\/summary\u003e\n  \u003cp\u003eReplacement intervals depend on operating hours, storage conditions and whether the engine is used in saltwater, sand or silt. Follow the engine manufacturer's maintenance schedule and replace the impeller sooner if cooling-water flow weakens or the engine shows signs of overheating.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a failing impeller?\u003c\/summary\u003e\n  \u003cp\u003ePossible signs include reduced or intermittent tell-tale flow, overheating at idle or low speed, visible cracking or brittleness, damaged vanes, or an impeller that has taken a permanent set after extended storage.\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 component. Mercury OEM reference 47-89981Q1 is provided for application and interchange identification only; Mercury is not the manufacturer of this aftermarket item.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, serial number, original impeller and inside diameter before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not run an outboard without an adequate water supply.\u003c\/li\u003e\n  \u003cli\u003eReplace damaged or excessively worn pump components before returning the engine to service.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when lower-unit removal or water-pump service is unfamiliar.\u003c\/li\u003e\n  \u003cli\u003eProduct images and dimensions may vary slightly from the original component; application and dimensional checks remain the buyer's responsibility.\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 maintenance and repair of marine equipment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Part references and fitment information are provided to help you compare your original component.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Product Questions\u003c\/strong\u003e — Contact support with your engine model, serial number and original-part details when application information is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723963994427,"sku":"KZ-9H1V-WL1K","price":24.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/KZ-9H1V-WL1K.png?v=1763038527"},{"product_id":"carburetor-repair-kit-fits-yamaha-3-8hp-mercury-mariner-4-8hp-tohatsu-4-5hp-replaces-yamaha-6n0-w0093-00-mercury-mariner-11502m-sierra-18-7765-tohatsu-369-87122-1","title":"Carburetor Repair Seal Kit for Yamaha 2-Stroke Outboards – 6HP 1997–2000, 8HP 1997–2009 (Replaces Yamaha 6N0-W0093-00, 6N0-W0093-01)","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; 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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis carburetor repair seal kit is designed for selected \u003cstrong\u003eYamaha 2-stroke outboard motors\u003c\/strong\u003e. According to the applicable product specification, it fits Yamaha 6HP engines from 1997–2000 and Yamaha 8HP engines from 1997–2009.\u003c\/p\u003e\n\u003cp\u003eUse this kit to replace worn or damaged carburetor sealing components during carburetor service. Compare your original parts, engine model information, and the listed manufacturer numbers before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCarburetor repair seal kit for selected Yamaha 2-stroke outboards.\u003c\/li\u003e\n  \u003cli\u003eApplication range: Yamaha 6HP, 1997–2000; Yamaha 8HP, 1997–2009.\u003c\/li\u003e\n  \u003cli\u003eManufacturer reference numbers: Yamaha 6N0-W0093-00 and 6N0-W0093-01.\u003c\/li\u003e\n  \u003cli\u003eFor carburetor service and seal replacement; it is not a complete carburetor assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eManufacturer Reference Numbers\u003c\/h2\u003e\n\u003cp\u003eThe following Yamaha numbers are listed as references for this repair seal kit. A reference number alone does not replace verification of the exact engine model and year.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Manufacturer Reference Numbers\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eReference Number\u003c\/th\u003e\n        \u003cth\u003eApplication\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\u003e6N0-W0093-00\u003c\/td\u003e\n        \u003ctd\u003eManufacturer reference for the repair seal kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6N0-W0093-01\u003c\/td\u003e\n        \u003ctd\u003eManufacturer reference for the repair seal kit\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\u003eCompatibility is limited to the Yamaha applications listed below. Keep horsepower, stroke type, and year together when checking fitment.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eReference Numbers\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\u003e6HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2000\u003c\/td\u003e\n        \u003ctd\u003e6N0-W0093-00; 6N0-W0093-01\u003c\/td\u003e\n        \u003ctd\u003eVerify the complete engine model before installation.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e8HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2009\u003c\/td\u003e\n        \u003ctd\u003e6N0-W0093-00; 6N0-W0093-01\u003c\/td\u003e\n        \u003ctd\u003eVerify the complete engine model before installation.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eCarburetor repair seal kit\u003c\/dd\u003e\n  \u003cdt\u003eBrand Application\u003c\/dt\u003e\n  \u003cdd\u003eYamaha Outboard\u003c\/dd\u003e\n  \u003cdt\u003eEngine Type\u003c\/dt\u003e\n  \u003cdd\u003e2-stroke outboard\u003c\/dd\u003e\n  \u003cdt\u003eCompatible Horsepower\u003c\/dt\u003e\n  \u003cdd\u003e6HP and 8HP, within the listed year ranges\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement during carburetor 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 x Carburetor repair seal kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExact seal and gasket contents may vary by application. Compare the supplied parts with the original carburetor components before disassembly and installation.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the Yamaha engine horsepower, 2-stroke configuration, year, and manufacturer reference number before beginning work.\u003c\/li\u003e\n  \u003cli\u003eShut off the fuel supply and allow the engine to cool completely.\u003c\/li\u003e\n  \u003cli\u003eRemove the engine cowling and carburetor as directed by the applicable service manual.\u003c\/li\u003e\n  \u003cli\u003eRecord hose, linkage, and component locations before disassembly.\u003c\/li\u003e\n  \u003cli\u003eDisassemble the carburetor in a clean work area and retain the original parts for comparison.\u003c\/li\u003e\n  \u003cli\u003eClean suitable metal components with an appropriate carburetor cleaner. Keep solvents away from new seals and other parts that may be damaged by chemicals.\u003c\/li\u003e\n  \u003cli\u003eRemove the old seals and install the replacement components in the correct locations.\u003c\/li\u003e\n  \u003cli\u003eReassemble the carburetor and reinstall it with all hoses and linkages correctly connected.\u003c\/li\u003e\n  \u003cli\u003eRestore the fuel supply, check carefully for leaks, and follow the engine service manual for any required adjustments.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this kit fits my engine?\u003c\/summary\u003e\u003cp\u003eConfirm that your engine is a Yamaha 2-stroke outboard rated at 6HP from 1997–2000 or 8HP from 1997–2009. Also compare the original carburetor and the manufacturer reference numbers 6N0-W0093-00 or 6N0-W0093-01.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a complete carburetor?\u003c\/summary\u003e\u003cp\u003eNo. This product is a carburetor repair seal kit. It is intended to replace applicable sealing components during carburetor service and does not include a complete carburetor assembly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShould I replace only the seals?\u003c\/summary\u003e\u003cp\u003eInspect the carburetor, gaskets, seals, passages, and other serviceable components before reassembly. Replace or service any additional worn parts as required by the engine service manual.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this kit on a different Yamaha horsepower or year?\u003c\/summary\u003e\u003cp\u003eDo not assume compatibility outside the listed applications. Yamaha carburetor components can vary by model and production year, so verify the complete engine model and original part before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM product?\u003c\/summary\u003e\u003cp\u003eThis listing is for a replacement repair seal kit. Yamaha reference numbers are provided for identification and fitment comparison; Yamaha branding does not indicate that this product is manufactured by Yamaha.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWork in a well-ventilated area away from open flames and ignition sources.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate eye protection and chemical-resistant gloves when handling fuel or carburetor cleaner.\u003c\/li\u003e\n  \u003cli\u003eFollow the engine manufacturer’s service procedures and torque specifications.\u003c\/li\u003e\n  \u003cli\u003eVerify the engine model, year, horsepower, stroke type, reference number, and replacement parts before installation.\u003c\/li\u003e\n  \u003cli\u003eIf the supplied parts do not match the original components, stop installation and confirm compatibility before proceeding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cp\u003eSea Sierra supplies replacement marine parts for repair and maintenance applications. For the best fit, use the complete engine identification information and compare the original component before ordering.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968418107,"sku":"19CR008","price":28.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/19CR008-1.jpg?v=1763038712"},{"product_id":"carburetor-rebuild-kit-fits-mercury-mariner-yamaha-tohatsu-3hp-8hp-replaces-369-87122-1","title":"Carburetor Repair Kit for Mercury\/Mariner, Yamaha and Tohatsu\/Nissan 3–8 HP 2-Stroke Outboards – Replaces 369-87122-1","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\u003eCarburetor Repair Kit\u003c\/strong\u003e is an aftermarket service kit for selected 2-stroke Mercury, Mariner, Yamaha and Tohatsu\/Nissan small outboard carburetors. It is intended to replace commonly serviced carburetor components and help restore reliable fuel metering, starting and idle performance when the existing parts are worn or damaged.\u003c\/p\u003e\n    \u003cp\u003eThe kit is associated with Tohatsu\/Nissan part \u003cstrong\u003e369-87122-1\u003c\/strong\u003e and is also listed with \u003cstrong\u003e3B2-87122-0\u003c\/strong\u003e, Mercury reference \u003cstrong\u003e11502M\u003c\/strong\u003e, Yamaha reference \u003cstrong\u003e6G1-W0093-00-00\u003c\/strong\u003e, and Sierra reference \u003cstrong\u003e18-7765\u003c\/strong\u003e. These references apply only where the engine and carburetor configuration match; part-number similarity alone does not confirm fitment.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003eDesigned for selected 2-stroke outboard carburetor applications in the 3–8 HP range.\u003c\/li\u003e\n        \u003cli\u003eReplaces service items such as gaskets, the float, needle valve and related hardware included in the kit.\u003c\/li\u003e\n        \u003cli\u003eAftermarket replacement part; not manufactured by Mercury, Mariner, Yamaha, Tohatsu, Nissan or Sierra.\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 are manufacturer or aftermarket reference numbers associated with this repair-kit application. Confirm the complete engine model, year, serial range and carburetor before ordering.\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\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\/Nissan\u003c\/td\u003e\n                    \u003ctd\u003e369-87122-1\u003c\/td\u003e\n                    \u003ctd\u003eOEM reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eTohatsu\u003c\/td\u003e\n                    \u003ctd\u003e3B2-87122-0\u003c\/td\u003e\n                    \u003ctd\u003eOEM reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury\u003c\/td\u003e\n                    \u003ctd\u003e11502M\u003c\/td\u003e\n                    \u003ctd\u003eOEM reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eYamaha\u003c\/td\u003e\n                    \u003ctd\u003e6G1-W0093-00-00\u003c\/td\u003e\n                    \u003ctd\u003eOEM reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eYamaha\u003c\/td\u003e\n                    \u003ctd\u003e6G1-W0093-01-00\u003c\/td\u003e\n                    \u003ctd\u003eAdditional catalog reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eSierra\u003c\/td\u003e\n                    \u003ctd\u003e18-7765\u003c\/td\u003e\n                    \u003ctd\u003eAftermarket reference\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\u003eCompatibility is application-specific. Use the tables below as reference points, then compare the engine identification plate, model code, year, serial number and carburetor number with your original part before ordering.\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n        \u003ctable class=\"ss-table\" aria-label=\"Confirmed Catalog Application References\"\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 or Serial Condition\u003c\/th\u003e\n                    \u003cth\u003eReference\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\u003e6 C–D\u003c\/td\u003e\n                    \u003ctd\u003e6\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eSerial-code condition 6H8 or 6H6\u003c\/td\u003e\n                    \u003ctd\u003e11502M \/ 18-7765\u003c\/td\u003e\n                    \u003ctd\u003eCatalog application reference; verify the carburetor before ordering.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n                    \u003ctd\u003e8C\u003c\/td\u003e\n                    \u003ctd\u003e8\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eSerial-code condition 6G1\u003c\/td\u003e\n                    \u003ctd\u003e11502M \/ 18-7765\u003c\/td\u003e\n                    \u003ctd\u003eCatalog application reference; verify the carburetor before ordering.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eYamaha\u003c\/td\u003e\n                    \u003ctd\u003e3LG, 3SG\u003c\/td\u003e\n                    \u003ctd\u003e3\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1988\u003c\/td\u003e\n                    \u003ctd\u003e6G1-W0093-00-00\u003c\/td\u003e\n                    \u003ctd\u003eListed as a carburetor repair-kit application.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eYamaha\u003c\/td\u003e\n                    \u003ctd\u003e6LG, 6SG\u003c\/td\u003e\n                    \u003ctd\u003e6\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1988\u003c\/td\u003e\n                    \u003ctd\u003e6G1-W0093-00-00\u003c\/td\u003e\n                    \u003ctd\u003eListed as a carburetor repair-kit application.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eYamaha\u003c\/td\u003e\n                    \u003ctd\u003e8LK, 8LN, 8SK, 8SN\u003c\/td\u003e\n                    \u003ctd\u003e8\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1984–1985\u003c\/td\u003e\n                    \u003ctd\u003e6G1-W0093-00-00\u003c\/td\u003e\n                    \u003ctd\u003eModel and year must match the original carburetor.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eTohatsu\/Nissan\u003c\/td\u003e\n                    \u003ctd\u003eSelected M and NS small outboards\u003c\/td\u003e\n                    \u003ctd\u003e3–8\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eModel and carburetor dependent\u003c\/td\u003e\n                    \u003ctd\u003e369-87122-1 \/ 3B2-87122-0\u003c\/td\u003e\n                    \u003ctd\u003eVerify the exact model designation and original kit reference.\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eExamples of Tohatsu\/Nissan model families associated with this reference include selected 3A, 3AMH, 3MSH, M4, M5, M8, M9.8, NS4, NS5, NS8 and NS9.8 applications. The exact fit depends on the model suffix, production year, serial range and carburetor configuration.\u003c\/p\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\u003eCarburetor repair\/rebuild kit\u003c\/dd\u003e\n        \u003cdt\u003eApplication\u003c\/dt\u003e\n        \u003cdd\u003eSelected 2-stroke outboard carburetors\u003c\/dd\u003e\n        \u003cdt\u003eRated Power Range\u003c\/dt\u003e\n        \u003cdd\u003eSelected 3–8 HP applications\u003c\/dd\u003e\n        \u003cdt\u003eFuel Type\u003c\/dt\u003e\n        \u003cdd\u003eGasoline\/petrol\u003c\/dd\u003e\n        \u003cdt\u003ePrimary Reference\u003c\/dt\u003e\n        \u003cdd\u003e369-87122-1\u003c\/dd\u003e\n        \u003cdt\u003eAlternative References\u003c\/dt\u003e\n        \u003cdd\u003e3B2-87122-0, 11502M, 6G1-W0093-00-00 and 18-7765\u003c\/dd\u003e\n        \u003cdt\u003eConstruction\u003c\/dt\u003e\n        \u003cdd\u003eAftermarket replacement components\u003c\/dd\u003e\n        \u003cdt\u003eFitment Requirement\u003c\/dt\u003e\n        \u003cdd\u003eMatch the engine model, year, serial range and carburetor configuration before installation.\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    \u003cp\u003eOne repair kit is supplied. The component list below reflects the listed kit configuration; component appearance may vary slightly by production batch.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e1 x Pilot screw\u003c\/li\u003e\n        \u003cli\u003e1 x Cap\u003c\/li\u003e\n        \u003cli\u003e1 x Gasket\u003c\/li\u003e\n        \u003cli\u003e1 x Cap\u003c\/li\u003e\n        \u003cli\u003e1 x O-ring\u003c\/li\u003e\n        \u003cli\u003e4 x Screws with washers\u003c\/li\u003e\n        \u003cli\u003e1 x Float\u003c\/li\u003e\n        \u003cli\u003e1 x Needle valve\u003c\/li\u003e\n        \u003cli\u003e1 x Float pin\u003c\/li\u003e\n        \u003cli\u003e1 x Float-arm pin\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\u003eTurn off the fuel supply and disconnect the fuel line in a well-ventilated work area.\u003c\/li\u003e\n        \u003cli\u003eRemove the carburetor assembly from the engine according to the engine service procedure.\u003c\/li\u003e\n        \u003cli\u003eDisassemble the carburetor on a clean, organized surface and document the original component positions.\u003c\/li\u003e\n        \u003cli\u003eClean the reusable metal carburetor parts with an appropriate carburetor cleaner. Keep cleaner away from rubber, plastic and other parts that may be damaged by solvents.\u003c\/li\u003e\n        \u003cli\u003eReplace the applicable gaskets, O-ring, float, needle valve, pins and hardware supplied in the kit.\u003c\/li\u003e\n        \u003cli\u003eInspect the carburetor body, fuel passages and threads for damage. A repair kit will not correct a damaged or severely corroded carburetor body.\u003c\/li\u003e\n        \u003cli\u003eReassemble the carburetor and set the float according to the engine manufacturer's service information.\u003c\/li\u003e\n        \u003cli\u003eReinstall the carburetor, reconnect the fuel line and check carefully for leaks before starting the engine.\u003c\/li\u003e\n        \u003cli\u003eAfter the engine reaches operating temperature, complete any required idle or mixture adjustment using the applicable service procedure.\u003c\/li\u003e\n    \u003c\/ol\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 fitment?\u003c\/summary\u003e\n        \u003cp\u003eCompare the complete engine model, horsepower, stroke, year and serial information with the compatibility information above. Also compare the carburetor body, gasket shape, float and needle valve with the original components. If any of these details differ, do not assume the kit will fit.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWill this kit fix a hard-starting or poorly idling engine?\u003c\/summary\u003e\n        \u003cp\u003eA worn needle valve, damaged gasket, deteriorated O-ring or faulty float can contribute to hard starting, rough idle, stalling or fuel leakage. Carburetor cleaning, correct adjustment and diagnosis of the rest of the fuel and ignition systems are also required.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat are common signs that a carburetor needs service?\u003c\/summary\u003e\n        \u003cp\u003eCommon symptoms include difficult starting, unstable idle, hesitation, stalling, fuel leakage, poor acceleration or a noticeable change in fuel mixture. These symptoms can have multiple causes, so inspect the complete engine system before replacing parts.\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 repair kit. The OEM and aftermarket numbers shown above are reference numbers used to identify compatible applications and are not a statement that the kit is manufactured by those brands.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eDoes the kit fit every 3–8 HP outboard?\u003c\/summary\u003e\n        \u003cp\u003eNo. The 3–8 HP range is only a general application range. Fitment depends on the exact brand, model code, production year, serial range and carburetor design.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow often should a carburetor be rebuilt?\u003c\/summary\u003e\n        \u003cp\u003eThere is no universal replacement interval. Service the carburetor when inspection shows deterioration or when symptoms indicate a fuel-system problem. Fuel age, storage conditions and saltwater exposure can affect service requirements.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat should I do if the parts do not match?\u003c\/summary\u003e\n        \u003cp\u003eDo not force the components into place or operate the engine with an uncertain fuel-system repair. Compare the original parts and contact support with the complete engine model and photographs of the carburetor and kit components.\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\u003eWork only in a well-ventilated area away from flames, sparks and ignition sources.\u003c\/li\u003e\n        \u003cli\u003eUse appropriate eye protection and chemical-resistant gloves when handling fuel and carburetor cleaner.\u003c\/li\u003e\n        \u003cli\u003eVerify the engine model, year, serial range and carburetor configuration before purchase and installation.\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 applicable service procedure or carburetor settings are unfamiliar.\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-Focused Parts\u003c\/strong\u003e — Replacement components selected for common outboard service applications.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication Guidance\u003c\/strong\u003e — Reference numbers and model information are provided to help customers compare their original parts.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAftermarket Value\u003c\/strong\u003e — Practical replacement options 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":50723968450875,"sku":"17CR009","price":32.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17CR009-1.jpg?v=1763038714"},{"product_id":"water-pump-impeller-fits-mercury-4-4-5-6-7-5-9-8-hp-replaces-47-89981-47-65957","title":"Water Pump Impeller with Key – Fits Mercury Mariner 2-Stroke 3.9, 4, 4.5, 6, 7.5 \u0026 9.8 HP, 0.456 in Shaft","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\u003ewater pump impeller with key\u003c\/strong\u003e is designed for selected Mercury and Mariner 2-stroke outboard applications using a 0.456-inch shaft. It is intended to restore water-pump circulation and help maintain proper engine cooling when the original impeller is worn, damaged, or due for scheduled service.\u003c\/p\u003e\n\u003cp\u003eThe product is supplied as one impeller with one matching key. It is not a complete water-pump service kit and does not include the pump housing, wear plate, gaskets, seals, or other water-pump components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApplication range: Mercury and Mariner 2-stroke outboards rated 3.9, 4, 4.5, 6, 7.5, and 9.8 HP.\u003c\/li\u003e\n  \u003cli\u003eRequired shaft inside diameter: 0.456 inch.\u003c\/li\u003e\n  \u003cli\u003eIncludes the impeller and key needed for the listed application.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement for maintenance or repair of the outboard water-pump system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number References\u003c\/h2\u003e\n\u003cp\u003eUse the following manufacturer and aftermarket reference numbers together with the shaft and engine details to confirm suitability before ordering.\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 or source\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\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89981T2\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-65957\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-39074\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3039\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-45305\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e12270\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCEF\u003c\/td\u003e\n\u003ctd\u003e500314\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\u003eFor the listed Mercury and Mariner 2-stroke applications, verify the complete engine identification and confirm that the water-pump shaft uses the required 0.456-inch diameter. Horsepower alone is not sufficient to confirm fitment because different engines and serial ranges may use different impellers.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Compatible Engine Applications\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eRated horsepower\u003c\/th\u003e\n\u003cth\u003eShaft requirement\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\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3.9 HP\u003c\/td\u003e\n\u003ctd\u003e0.456 in\u003c\/td\u003e\n\u003ctd\u003eConfirm the engine model and water-pump shaft before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e0.456 in\u003c\/td\u003e\n\u003ctd\u003eConfirm the engine model and water-pump shaft before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e4.5 HP\u003c\/td\u003e\n\u003ctd\u003e0.456 in\u003c\/td\u003e\n\u003ctd\u003eConfirm the engine model and water-pump shaft before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e6 HP\u003c\/td\u003e\n\u003ctd\u003e0.456 in\u003c\/td\u003e\n\u003ctd\u003eConfirm the engine model, serial range, and water-pump shaft before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e7.5 HP\u003c\/td\u003e\n\u003ctd\u003e0.456 in\u003c\/td\u003e\n\u003ctd\u003eConfirm the engine model and water-pump shaft before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e9.8 HP\u003c\/td\u003e\n\u003ctd\u003e0.456 in\u003c\/td\u003e\n\u003ctd\u003eConfirm the engine model and water-pump shaft before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump impeller with key\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eMercury and Mariner 2-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eRated horsepower range\u003c\/dt\u003e\n  \u003cdd\u003e3.9, 4, 4.5, 6, 7.5, and 9.8 HP\u003c\/dd\u003e\n  \u003cdt\u003eShaft inside diameter\u003c\/dt\u003e\n  \u003cdd\u003e0.456 inch\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket reference\u003c\/dt\u003e\n  \u003cdd\u003eSierra 18-3039\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eNot specified in the product record\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  \u003cli\u003e1 x Matching impeller key\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGaskets, seals, wear plates, pump housings, and other water-pump service parts are not included unless separately stated.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the engine model, stroke, serial information where applicable, and 0.456-inch shaft requirement before beginning installation.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit or gearcase according to the engine manufacturer's service procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the water-pump housing and carefully extract the old impeller and key.\u003c\/li\u003e\n  \u003cli\u003eClean debris, corrosion, and damaged gasket material from the pump housing and related sealing surfaces.\u003c\/li\u003e\n  \u003cli\u003eInstall the supplied key and impeller in the same orientation as the original component.\u003c\/li\u003e\n  \u003cli\u003eInspect the housing, wear plate, seals, and gaskets. Replace worn or damaged components as required; replacement service parts are not included.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water pump and lower unit using the manufacturer's torque specifications.\u003c\/li\u003e\n  \u003cli\u003eTest the outboard in water and confirm a steady cooling-water tell-tale stream before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm that this impeller fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eConfirm all of the following: Mercury or Mariner brand, 2-stroke configuration, one of the listed horsepower ratings, and a water-pump shaft with a 0.456-inch diameter. Check the engine model and serial information where applicable, then compare the old impeller and key before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this product include a key?\u003c\/summary\u003e\n  \u003cp\u003eYes. The product is supplied as one water-pump impeller with one matching key.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a complete water-pump repair kit?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is for the impeller and key only. The pump housing, wear plate, gaskets, seals, and other service components are not included.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat happens if my shaft is a different size?\u003c\/summary\u003e\n  \u003cp\u003eDo not install this impeller on a shaft that does not match the required 0.456-inch diameter. A different shaft size can cause improper fitment, poor water-pump performance, and possible engine damage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a worn water-pump impeller?\u003c\/summary\u003e\n  \u003cp\u003ePossible signs include a weak or missing tell-tale stream, overheating at idle or low speed, or a high-temperature warning. Stop operation and inspect the cooling system if any of these symptoms appear.\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 listed Mercury, Sierra, Mallory, GLM, and CEF numbers are reference numbers used to help identify the intended application.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, stroke, horsepower, serial information where applicable, shaft diameter, and original impeller before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not rely on horsepower alone to determine fitment.\u003c\/li\u003e\n  \u003cli\u003eFollow the outboard manufacturer's service instructions and torque specifications.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are not familiar with lower-unit or water-pump service.\u003c\/li\u003e\n  \u003cli\u003eNever operate the outboard without an adequate water supply for cooling.\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 routine maintenance and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-focused fitment\u003c\/strong\u003e — Product information highlights the engine, stroke, and shaft conditions needed for selection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomer support\u003c\/strong\u003e — Contact support with your engine model and serial information if you need help checking the application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968778555,"sku":"17IM003K","price":18.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_for_Mercury_4_45_6_75_98_HP_47-89981_47-65957_-_JLM_MARINE-8288499.jpg?v=1763038729"},{"product_id":"water-pump-impeller-fits-mercury-mariner-4-9-8hp-outboards-replaces-47-89981-47-65957-47-39074","title":"Water Pump Impeller – Fits Mercury\/Mariner 4–9.8HP Outboards (Replaces 47-89981, 47-65957, 47-39074)","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\u003ewater pump impeller\u003c\/strong\u003e is designed for select Mercury and Mariner 2-stroke outboards using the larger approximately 0.456-inch (11.6 mm) impeller bore. It circulates cooling water through the water-pump system to help maintain proper engine operating temperature.\u003c\/p\u003e\n\u003cp\u003eCatalog references identify this application as a replacement for Mercury OEM numbers \u003cstrong\u003e47-89981\u003c\/strong\u003e, \u003cstrong\u003e47-65957\u003c\/strong\u003e, and \u003cstrong\u003e47-39074\u003c\/strong\u003e. Always verify the original impeller, bore size, engine serial number, and water-pump configuration before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement impeller for select Mercury and Mariner outboard cooling systems.\u003c\/li\u003e\n  \u003cli\u003eDesigned for the approximately 0.456-inch (11.6 mm) impeller bore application.\u003c\/li\u003e\n  \u003cli\u003eCatalog cross-reference: Sierra 18-3039 and GLM 89810.\u003c\/li\u003e\n  \u003cli\u003eDrive style and water-pump configuration must match the original part; do not rely on horsepower alone.\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 impeller application. They are provided for identification and cross-reference 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\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eOEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89981B\u003c\/td\u003e\n\u003ctd\u003eRelated OEM suffix reference; verify application\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-65957\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\u003e47-39074\u003c\/td\u003e\n\u003ctd\u003eReplacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3039\u003c\/td\u003e\n\u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM Marine\u003c\/td\u003e\n\u003ctd\u003e89810\u003c\/td\u003e\n\u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis impeller is intended for select Mercury and Mariner 2-stroke outboards in the 4–9.8 HP range, including the applications listed below. Model, year, serial number, and impeller bore must be checked together.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Mercury and Mariner outboards in similar horsepower ranges may use different impeller bore sizes. This part is for the approximately 0.456-inch (11.6 mm) application. It is not intended for the smaller approximately 0.438-inch-bore impeller application.\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 Reference\u003c\/th\u003e\n\u003cth\u003eApplication Notes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eVerify serial number and approximately 0.456-inch impeller bore.\u003c\/td\u003e\n\u003c\/tr\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\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eUSA model range; verify serial number and bore.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4.5 HP\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1975–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eVerify serial number and approximately 0.456-inch impeller bore.\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\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1976–1979\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eSerial range 1916139–2193817; verify the original impeller.\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\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1979–1983\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eSerial range 2193818–2529894; verify the original impeller.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e7.5 HP\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1976–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eSerial range 4131610–5226934; verify the original impeller.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.8 HP (110)\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1976–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eSerial range 2196389–5206549; verify the original impeller.\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\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eUse only with the approximately 0.456-inch impeller bore application.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e4.5 HP\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eUse only with the approximately 0.456-inch impeller bore application.\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\u003e6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1983\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eUse only with the approximately 0.456-inch impeller bore application.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e7.5 HP\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eUse only with the approximately 0.456-inch impeller bore application.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e9.8 HP\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1977–1986\u003c\/td\u003e\n\u003ctd\u003e47-89981\u003c\/td\u003e\n\u003ctd\u003eUse only with the approximately 0.456-inch impeller bore application.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater pump impeller\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Mercury and Mariner 2-stroke outboard cooling systems\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Bore\u003c\/dt\u003e\n\u003cdd\u003eApproximately 0.456 inch (11.6 mm)\u003c\/dd\u003e\n  \u003cdt\u003eOutside Diameter\u003c\/dt\u003e\n\u003cdd\u003eApproximately 1.250 inches (31.8 mm), subject to manufacturing tolerance\u003c\/dd\u003e\n  \u003cdt\u003eDrive Style\u003c\/dt\u003e\n\u003cdd\u003eMatch the original impeller and water-pump shaft configuration before installation\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline outboard engines\u003c\/dd\u003e\n  \u003cdt\u003eReplacement Type\u003c\/dt\u003e\n\u003cdd\u003eAftermarket direct-replacement impeller\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × water pump impeller\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eNo gasket, water-pump housing, wear plate, pin, key, or other water-pump service parts are included unless specifically shown or stated with the selected product.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and remove the safety lanyard. Follow the engine manufacturer’s service precautions.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the service manual for your exact engine and serial number.\u003c\/li\u003e\n  \u003cli\u003eOpen the water-pump housing and note the orientation and drive arrangement of the original impeller.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller and inspect the housing, wear plate, shaft, pin or key, gaskets, and seals for wear or damage.\u003c\/li\u003e\n  \u003cli\u003eClean the water-pump cavity and confirm that the replacement bore and drive arrangement match the original part.\u003c\/li\u003e\n  \u003cli\u003eLubricate the impeller with clean water or a lubricant approved for marine water-pump installation. Do not use a petroleum product that may damage the impeller material.\u003c\/li\u003e\n  \u003cli\u003eInstall the impeller with the vanes oriented in the operating direction specified by the service manual. Do not force an incorrect bore or drive style onto the shaft.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water-pump housing with serviceable gaskets and seals, tightening fasteners to the manufacturer’s specified torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit and verify gear-shift and cooling-water connections before operation.\u003c\/li\u003e\n  \u003cli\u003eRun the engine only in water or with an appropriate flushing attachment, and confirm a steady cooling-water discharge before normal use.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this impeller fits my Mercury or Mariner engine?\u003c\/summary\u003e\u003cp\u003eCheck the engine brand, exact model, year, serial number, OEM reference, and impeller bore. The approximately 0.456-inch bore is the key application distinction. Compare the replacement with the old impeller and consult the engine service manual before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon signs include a weak or missing cooling-water discharge, higher-than-normal operating temperature, an overheating alarm, or visible damage to the impeller or water-pump housing. Stop the engine if overheating occurs and inspect the complete cooling system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should an impeller be replaced?\u003c\/summary\u003e\u003cp\u003eReplacement intervals depend on engine use, storage, water conditions, and the manufacturer’s maintenance schedule. Replace an impeller when it is damaged, hardened, cracked, deformed, or when cooling-water flow is reduced. Seasonal inspection is recommended for frequently used engines.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this impeller fit every Mercury or Mariner engine from 4 to 9.8 HP?\u003c\/summary\u003e\u003cp\u003eNo. Horsepower and model year alone do not establish fitment. Some engines use a different impeller bore or water-pump configuration. Confirm the serial number and approximately 0.456-inch bore before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement impeller. Mercury OEM numbers and aftermarket numbers shown on this page are reference numbers used to help identify the application; they do not indicate that this product is manufactured by Mercury, Sierra, or GLM.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eAre gaskets or other water-pump parts included?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for one impeller only. Gaskets, seals, wear plates, housings, pins, keys, and other service parts are not included unless specifically stated in the package contents.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I do if the impeller does not match my original part?\u003c\/summary\u003e\u003cp\u003eDo not install it. Compare the bore, outside diameter, height, vane arrangement, and drive style with the original part, then confirm the engine serial number and water-pump diagram before proceeding.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, year, serial number, OEM reference, and impeller dimensions before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not operate an outboard with inadequate cooling-water flow.\u003c\/li\u003e\n  \u003cli\u003eUse the manufacturer’s service manual for torque values, lower-unit removal, and water-pump assembly procedures.\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 application or 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\u003eMarine replacement parts selected for practical repair and maintenance applications.\u003c\/li\u003e\n  \u003cli\u003eClear cross-reference information to help match replacement parts with the original component.\u003c\/li\u003e\n  \u003cli\u003eCustomer support is available for product-identification questions before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968811323,"sku":"fys12111236","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/fys12111236.png?v=1763038731"},{"product_id":"water-pump-impeller-repair-kit-fits-mercury-marine-4-9-8-hp-replaces-46-70941a3","title":"Water Pump Impeller Service Kit with Housing – Fits Mercury Mariner 2-Stroke 4–9.8 HP (Replaces 46-70941A3)","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 aftermarket \u003cstrong\u003eWater Pump Impeller Service Kit with Housing\u003c\/strong\u003e is designed for selected Mercury and Mariner 2-stroke outboard applications in the 4 HP, 4.5 HP, 6 HP, 7.5 HP, and 9.8 HP range. It is intended to service the water pump and restore dependable cooling-system circulation when the impeller, pump housing, or related service components are worn.\u003c\/p\u003e\n  \u003cp\u003eThe kit is associated with Mercury Marine reference \u003cstrong\u003e46-70941A3\u003c\/strong\u003e and includes a replacement pump housing together with the water-pump impeller and service components supplied for this application. Always compare your original parts and verify the engine serial-number range before installation.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eComplete water-pump service configuration with housing.\u003c\/li\u003e\n    \u003cli\u003eDesigned for selected Mercury and Mariner 2-stroke outboards.\u003c\/li\u003e\n    \u003cli\u003eSupports replacement of worn or damaged water-pump components during routine cooling-system service.\u003c\/li\u003e\n    \u003cli\u003eAftermarket replacement part; Mercury, Sierra, and GLM references are provided for identification and cross-reference purposes only.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse these manufacturer and aftermarket references to compare the kit with your existing water-pump components.\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\u003c\/th\u003e\n          \u003cth\u003eApplication in the Catalog\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury Marine\u003c\/td\u003e\n          \u003ctd\u003e46-70941A3\u003c\/td\u003e\n          \u003ctd\u003eWater-pump service reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury Marine\u003c\/td\u003e\n          \u003ctd\u003e46-46893A6\u003c\/td\u003e\n          \u003ctd\u003eWater pump housing assembly reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury Marine\u003c\/td\u003e\n          \u003ctd\u003e47-22748\u003c\/td\u003e\n          \u003ctd\u003eWater pump impeller reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-3446\u003c\/td\u003e\n          \u003ctd\u003eWater pump kit cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eGLM Marine\u003c\/td\u003e\n          \u003ctd\u003e12122\u003c\/td\u003e\n          \u003ctd\u003eWater pump complete service kit cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThis kit is intended for selected \u003cstrong\u003eMercury and Mariner 2-stroke outboards\u003c\/strong\u003e rated at 4 HP, 4.5 HP, 6 HP, 7.5 HP, and 9.8 HP. Catalog references identify the 4 HP, 4.5 HP, 7.5 HP, and 9.8 HP applications primarily within the 1975–1985 range; the company fitment record also lists the 6 HP application.\u003c\/p\u003e\n  \u003cp\u003eFitment depends on the complete engine model and serial-number break, not horsepower alone. Confirm the serial number, pump-housing design, impeller dimensions, and original reference number 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\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eCatalog Year Range\u003c\/th\u003e\n          \u003cth\u003eReference\u003c\/th\u003e\n          \u003cth\u003eFitment Note\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\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1975–1985\u003c\/td\u003e\n          \u003ctd\u003e46-70941A3\u003c\/td\u003e\n          \u003ctd\u003eVerify the exact model and serial number.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e4.5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1975–1985\u003c\/td\u003e\n          \u003ctd\u003e46-70941A3\u003c\/td\u003e\n          \u003ctd\u003eVerify the exact model and serial number.\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\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003eSee serial-number break\u003c\/td\u003e\n          \u003ctd\u003e46-70941A3 \/ 46-46893A6\u003c\/td\u003e\n          \u003ctd\u003eConfirm the housing and impeller configuration.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e7.5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1975–1985\u003c\/td\u003e\n          \u003ctd\u003e46-70941A3\u003c\/td\u003e\n          \u003ctd\u003eVerify the exact model and serial number.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e9.8\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1975–1985\u003c\/td\u003e\n          \u003ctd\u003e46-70941A3\u003c\/td\u003e\n          \u003ctd\u003eSome catalog listings identify this application as Model 110; verify serial number.\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eWater pump impeller service kit with housing\u003c\/dd\u003e\n    \u003cdt\u003eEngine Type\u003c\/dt\u003e\n    \u003cdd\u003eSelected Mercury and Mariner 2-stroke outboards\u003c\/dd\u003e\n    \u003cdt\u003eRated Horsepower\u003c\/dt\u003e\n    \u003cdd\u003e4, 4.5, 6, 7.5, and 9.8 HP applications\u003c\/dd\u003e\n    \u003cdt\u003ePrimary Mercury Reference\u003c\/dt\u003e\n    \u003cdd\u003e46-70941A3\u003c\/dd\u003e\n    \u003cdt\u003eHousing Reference\u003c\/dt\u003e\n    \u003cdd\u003e46-46893A6\u003c\/dd\u003e\n    \u003cdt\u003eImpeller Reference\u003c\/dt\u003e\n    \u003cdd\u003e47-22748\u003c\/dd\u003e\n    \u003cdt\u003eImpeller Reference Dimensions\u003c\/dt\u003e\n    \u003cdd\u003eApproximately 1.250 inches outside diameter and 0.456 inches inside diameter, where applicable; verify against the original part.\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eReplacement service; installation should follow the engine manufacturer's service procedure.\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cp\u003eThis listing is supplied as a water-pump service kit with housing. The package includes the replacement water-pump housing, water-pump impeller, and the associated service components supplied for this application.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater pump housing\u003c\/li\u003e\n    \u003cli\u003eWater pump impeller\u003c\/li\u003e\n    \u003cli\u003eWater-pump service gaskets, seals, and related components as supplied for the application\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003ePackage contents may vary by application configuration. Compare the included parts with the original assembly before beginning installation.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eConfirm the engine model, serial number, stroke type, and original water-pump references before disassembly.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the battery or ignition power and follow the safety instructions in the engine service manual.\u003c\/li\u003e\n    \u003cli\u003eRemove the lower unit according to the manufacturer's service procedure.\u003c\/li\u003e\n    \u003cli\u003eRemove the old water-pump housing, impeller, wear surfaces, and related seals or gaskets.\u003c\/li\u003e\n    \u003cli\u003eClean the mating surfaces and inspect the driveshaft, key or drive feature, pump base, and water passages for wear or damage.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement service components in the correct order and orientation. Do not force the impeller or housing into place.\u003c\/li\u003e\n    \u003cli\u003eLubricate the impeller and housing as recommended by the engine manufacturer, using a lubricant compatible with the pump materials.\u003c\/li\u003e\n    \u003cli\u003eReinstall the lower unit and tighten all fasteners to the manufacturer's 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 leaks or overheating.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this kit fits my motor?\u003c\/summary\u003e\n    \u003cp\u003eCheck the complete engine model and serial number against the application information, then compare the original pump housing and impeller with the references and dimensions listed above. Horsepower by itself is not sufficient to confirm fitment.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich engines are covered by the listed application?\u003c\/summary\u003e\n    \u003cp\u003eThe company fitment record lists Mercury and Mariner 2-stroke applications in the 4 HP, 4.5 HP, 6 HP, 7.5 HP, and 9.8 HP range. Catalog references identify the 4 HP, 4.5 HP, 7.5 HP, and 9.8 HP applications primarily from 1975–1985. Always verify the serial-number break.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat symptoms indicate a worn water-pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eCommon symptoms include a weak or missing tell-tale stream, overheating, an overheating alarm, or visible impeller damage. Stop operating the engine if it overheats and inspect the cooling system before further use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the kit include the water-pump housing?\u003c\/summary\u003e\n    \u003cp\u003eYes. The applicable company product record describes this product as a water-pump service kit with housing. Confirm the housing style and serial-number range before installation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement kit. The Mercury, Sierra, and GLM numbers shown on this page are manufacturer or aftermarket reference numbers used for identification and cross-reference.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eReplacement intervals depend on operating conditions, storage, water quality, and the engine manufacturer's maintenance schedule. Inspect the impeller regularly and replace it when it shows cracking, hardening, vane damage, deformation, or reduced cooling-water flow.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the engine model, year or production range, stroke type, serial number, and original part before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not rely on horsepower alone for fitment confirmation.\u003c\/li\u003e\n    \u003cli\u003eCompare the original housing, impeller, key or drive feature, and seals with the supplied components.\u003c\/li\u003e\n    \u003cli\u003eNever run an outboard without adequate cooling-water supply.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component. Professional 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 — We provide aftermarket components for practical marine repair and maintenance applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Information\u003c\/strong\u003e — Reference numbers and fitment details are presented to help customers compare their original parts before ordering.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — For the best result, use the engine manufacturer's service instructions and verify the complete model and serial-number information.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968844091,"sku":"18KM005-QM","price":41.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/18KM005-QM.png?v=1763038733"},{"product_id":"water-pump-impeller-repair-kit-fits-mercury-marine-4-9-8-hp-replaces-47-89981q1-47-89981t1-47-89981t2","title":"Water Pump Impeller Repair Kit for Mercury and Mariner 4–9.8 HP 2-Stroke Outboards – Replaces 47-89981Q1, 47-89981T1 and 47-89981T2","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 \u003cstrong\u003eWater Pump Impeller Repair Kit\u003c\/strong\u003e is designed for Mercury and Mariner 4, 4.5, 6, 7.5, and 9.8 HP 2-stroke outboard motors manufactured between 1975 and 1986. The kit provides the components needed to service the lower-unit water pump and help restore proper cooling-water flow.\u003c\/p\u003e\n\u003cp\u003eIt replaces or cross-references Mercury part numbers 47-89981Q1, 47-89981T1, and 47-89981T2, as well as Sierra 18-3239, GLM 12270, and Soxa Marine 18KM001. Confirm the engine model, year, and serial-number range before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls in the lower-unit water-pump assembly.\u003c\/li\u003e\n\u003cli\u003eIncludes a durable neoprene impeller with a brass hub.\u003c\/li\u003e\n\u003cli\u003eIncludes a marine-grade SS316 wear plate and associated seals and O-rings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to compare the listed OEM and aftermarket references. Part-number appearance alone does not replace model and serial-number verification.\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\u003e47-89981Q1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89981T1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-89981T2\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3239\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e12270\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSoxa Marine\u003c\/td\u003e\n\u003ctd\u003e18KM001\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, horsepower, stroke, and serial number against the table below before purchase. Mercury and Mariner outboards can have mid-year production changes, so the serial-number range is important for fitment.\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\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 4 HP\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003eFor S\/N 5595532 and up, U.S.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury 4.5 HP\u003c\/td\u003e\n        \u003ctd\u003e4.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003eFor S\/N 5595532 and up; 1-cylinder model\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury 6 HP\u003c\/td\u003e\n        \u003ctd\u003e6\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003eFor S\/N 1916139 through 2529894\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury 7.5 HP\u003c\/td\u003e\n        \u003ctd\u003e7.5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003eModel 75; S\/N 5206550 and up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury 9.8 HP\u003c\/td\u003e\n        \u003ctd\u003e9.8\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1986\u003c\/td\u003e\n        \u003ctd\u003e47-89981Q1\u003c\/td\u003e\n        \u003ctd\u003eMercury 110 model; S\/N 5206550 and up\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\u003eWater Pump Impeller Repair Kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eLower unit\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n  \u003cdd\u003eNeoprene with brass hub\u003c\/dd\u003e\n  \u003cdt\u003eWear Plate Material\u003c\/dt\u003e\n  \u003cdd\u003eMarine-grade SS316 stainless steel\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Blades\u003c\/dt\u003e\n  \u003cdd\u003e6\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Height\u003c\/dt\u003e\n  \u003cdd\u003e14.4 mm (0.57 inches)\u003c\/dd\u003e\n  \u003cdt\u003eOverall Diameter\u003c\/dt\u003e\n  \u003cdd\u003e32.0 mm (1.26 inches)\u003c\/dd\u003e\n  \u003cdt\u003eShaft Diameter\u003c\/dt\u003e\n  \u003cdd\u003e11.0 mm (0.456 inches)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n  \u003cdd\u003e11 g (0.45 oz)\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n  \u003cdd\u003e1 year\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Impeller, equivalent to 47-89981 and Sierra 18-3239\u003c\/li\u003e\n  \u003cli\u003e1 x Wear Plate, 46895\u003c\/li\u003e\n  \u003cli\u003e1 x Woodruff impeller key\u003c\/li\u003e\n  \u003cli\u003e1 x Guide sleeve for the water-inlet tube\u003c\/li\u003e\n  \u003cli\u003e1 x Seal, 700-85651\u003c\/li\u003e\n  \u003cli\u003e2 x O-rings, 700-81230 and 700-81090\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the spark-plug wires and shift the engine into neutral.\u003c\/li\u003e\n  \u003cli\u003eRemove the bolts securing the lower unit or gearcase, then carefully lower the unit.\u003c\/li\u003e\n  \u003cli\u003eRemove the water-pump housing cover to access the old impeller.\u003c\/li\u003e\n  \u003cli\u003eNote the old impeller-blade orientation before removal. Remove the Woodruff key from the driveshaft.\u003c\/li\u003e\n  \u003cli\u003eClean the housing interior and inspect the wear plate and housing for scoring, cracks, or other damage. Replace damaged components before assembly.\u003c\/li\u003e\n  \u003cli\u003eInstall the new Woodruff key, then slide the new impeller onto the driveshaft while twisting it in the direction of engine rotation so the blades seat correctly.\u003c\/li\u003e\n  \u003cli\u003eInstall the new wear plate, O-rings, and seal, then reinstall the water-pump housing.\u003c\/li\u003e\n  \u003cli\u003eLightly grease the driveshaft splines and reinstall the lower unit, ensuring that the water tube and shift shaft align correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this kit fit my 5 HP Mercury outboard?\u003c\/summary\u003e\u003cp\u003eNo. This kit is listed for the specific 4, 4.5, 6, 7.5, and 9.8 HP applications shown in the compatibility table. It is not listed for 5 HP Mercury or Mariner engines. Verify the horsepower, model, year, and serial number before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs the impeller shaft size important?\u003c\/summary\u003e\u003cp\u003eYes. This impeller is specified for an 11.0 mm (0.456-inch) driveshaft diameter. An incorrect size can prevent proper water-pump operation and may contribute to overheating or engine damage.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy is my engine’s serial number important?\u003c\/summary\u003e\u003cp\u003eManufacturers may change water-pump components during a model-year or production run. This kit is listed only for the serial-number ranges shown in the compatibility table, so check the engine identification label before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should I replace my water-pump impeller?\u003c\/summary\u003e\u003cp\u003eReplace the impeller according to the engine manufacturer’s maintenance schedule and inspect it regularly. Frequent operation in saltwater, sand, or silt can accelerate wear.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include a weak or missing telltale stream, an overheating warning, or an impeller that is brittle, cracked, deformed, or missing blades during inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part or an aftermarket one?\u003c\/summary\u003e\u003cp\u003eThis is an aftermarket replacement kit, not a Mercury OEM component. It is supplied as a replacement for the listed application and reference numbers.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow fast do you ship and what is the cost?\u003c\/summary\u003e\u003cp\u003eTypical worldwide transit is 5–15 days. Standard shipping is free, and available expedited options are shown at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eThis part is covered by a 1-year warranty against manufacturing defects under normal use. Contact support with your order details if an issue arises. Returns are accepted within the standard return window for unused items in their original condition. Refer to the applicable policy for complete instructions.\u003c\/p\u003e\u003c\/details\u003e\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 original-part dimensions before ordering.\u003c\/li\u003e\n  \u003cli\u003eCompare the supplied parts with the original components before installation. Do not install the kit if the parts differ from the required application.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement kit, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safe and reliable 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 designed for demanding 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, typically within 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing supported by careful material selection and quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968909627,"sku":"18KM001-QM","price":24.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/18KM001-QM.png?v=1763038736"},{"product_id":"water-pump-impeller-repair-kit-fits-yamaha-4-5hp-replaces-6f5-w0078-00-6f5-w0078-a0-00","title":"Aftermarket Water Pump Repair Kit Without Housing for Yamaha C40 and CV40 40 HP 2-Stroke Outboards (1990–1997) – Replaces 679-W0078-A1-00 and 6F5-W0078-A0-00","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;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket water pump repair kit is designed for Yamaha C40 and CV40 40 HP 2-stroke outboard motors. It is supplied without the water pump housing and is intended to service the existing pump assembly with replacement sealing, wear, drive, and impeller components.\u003c\/p\u003e\n\u003cp\u003eThe kit is listed for Yamaha CV40 models from 1990 and Yamaha C40 models from 1991–1997. It replaces Yamaha reference numbers 679-W0078-A1-00 and 6F5-W0078-A0-00. Confirm the exact engine model and year before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket water pump service kit supplied without the pump housing.\u003c\/li\u003e\n  \u003cli\u003eDesigned for Yamaha C40 and CV40 40 HP 2-stroke outboards within the listed application range.\u003c\/li\u003e\n  \u003cli\u003eIncludes an impeller, gaskets, seals, plates, key, fasteners, and related service components listed below.\u003c\/li\u003e\n  \u003cli\u003eUse the existing water pump housing if it is serviceable and compatible with the engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these manufacturer and aftermarket references when comparing the replacement kit with your existing water pump service parts.\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\u003eReference Type\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\u003eYamaha reference\u003c\/td\u003e\n        \u003ctd\u003e679-W0078-A1-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha reference\u003c\/td\u003e\n        \u003ctd\u003e6F5-W0078-A0-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAftermarket reference\u003c\/td\u003e\n        \u003ctd\u003e18-3397\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 kit is intended for the following Yamaha 2-stroke applications. Model, horsepower, stroke, and year conditions should be checked 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\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\u003eApplicable Year\u003c\/th\u003e\n        \u003cth\u003eReference Numbers\u003c\/th\u003e\n        \u003cth\u003eHousing\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\u003eCV40\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990\u003c\/td\u003e\n        \u003ctd\u003e679-W0078-A1-00 \/ 6F5-W0078-A0-00\u003c\/td\u003e\n        \u003ctd\u003eWithout housing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eC40\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1991–1997\u003c\/td\u003e\n        \u003ctd\u003e679-W0078-A1-00 \/ 6F5-W0078-A0-00\u003c\/td\u003e\n        \u003ctd\u003eWithout housing\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 Repair Kit\u003c\/dd\u003e\n  \u003cdt\u003eConfiguration\u003c\/dt\u003e\n  \u003cdd\u003eService kit without water pump housing\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eYamaha C40 and CV40 40 HP 2-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement service components for the existing compatible water pump assembly\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n  \u003cdd\u003eNeoprene rubber\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket Reference\u003c\/dt\u003e\n  \u003cdd\u003e18-3397\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 Seal Damper 2 (663-44366-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Insert (676-44322-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Impeller (6F5-44352-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Gasket (676-44315-A1-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Outer Plate (676-44323-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Gasket (676-44324-A1-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Gasket (679-44316-A0-00)\u003c\/li\u003e\n  \u003cli\u003e2 x Bolts (97095-08055-00)\u003c\/li\u003e\n  \u003cli\u003e2 x Bolts (97095-08045-00)\u003c\/li\u003e\n  \u003cli\u003e4 x Washers (92990-08600-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Woodruff Key (90280-04M00-00)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The kit is supplied without the water pump housing. The existing housing must be reused only if it is compatible, undamaged, and within serviceable condition.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003ePlace the outboard in a stable service position, disconnect the battery if applicable, and shift into neutral. Remove the lower unit according to the engine service procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the existing water pump housing from the driveshaft. This product does not include a replacement housing.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller, woodruff key, plates, gaskets, seals, and related service parts. Note the orientation of each component before removal.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surfaces of the existing pump housing and pump base. Remove old gasket material, corrosion, and debris without damaging the sealing surfaces.\u003c\/li\u003e\n  \u003cli\u003eInspect the existing housing, pump base, driveshaft, and keyway. Replace any damaged component before installing the service kit.\u003c\/li\u003e\n  \u003cli\u003eInstall the new water seal damper, cartridge insert, gaskets, plates, and other service components in the correct order for the engine.\u003c\/li\u003e\n  \u003cli\u003eInstall the new woodruff key in the driveshaft keyway.\u003c\/li\u003e\n  \u003cli\u003eApply a light coat of marine grease or a soap-and-water solution to the new impeller. Slide it over the key and rotate it in the correct direction so the vanes are not damaged.\u003c\/li\u003e\n  \u003cli\u003eFit the existing compatible housing over the impeller and driveshaft. Install the supplied fasteners and tighten them according to the engine manufacturer’s service specifications.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit and test the engine in water. Confirm a strong, steady cooling-water tell-tale stream before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich engines does this water pump repair kit fit?\u003c\/summary\u003e\u003cp\u003eThe company application specifies Yamaha CV40 40 HP 2-stroke models from 1990 and Yamaha C40 40 HP 2-stroke models from 1991–1997. Verify the exact model and year on your engine before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes the kit include the water pump housing?\u003c\/summary\u003e\u003cp\u003eNo. This is a service kit supplied without the water pump housing. You must reuse a compatible existing housing or obtain a housing separately.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat reference numbers does this kit replace?\u003c\/summary\u003e\u003cp\u003eThe listed Yamaha reference numbers are 679-W0078-A1-00 and 6F5-W0078-A0-00. The aftermarket reference associated with the kit is 18-3397.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install only the impeller?\u003c\/summary\u003e\u003cp\u003eThe kit is intended to service the water pump as a set. Replace the included gaskets, seals, key, plates, and other service components as needed for a complete repair rather than automatically reusing worn or compressed sealing parts.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if the existing housing can be reused?\u003c\/summary\u003e\u003cp\u003eInspect it for scoring, cracks, corrosion, distortion, and damage around the sealing and impeller surfaces. Do not reuse a housing that cannot provide a smooth, properly sealed pump assembly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\u003cp\u003eInspect the impeller during scheduled maintenance and whenever the cooling-water stream is weak or intermittent, the engine overheats, or the pump has been exposed to abrasive sand or silt. Follow the engine manufacturer’s maintenance schedule where available.\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 service kit designed for the listed Yamaha applications. Yamaha reference numbers are provided for identification and cross-reference only.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm the complete engine model, horsepower, stroke, and year range before purchase.\u003c\/li\u003e\n  \u003cli\u003eConfirm that your existing water pump housing is compatible and serviceable; the housing is not included.\u003c\/li\u003e\n  \u003cli\u003eDo not operate the engine without an adequate cooling-water supply.\u003c\/li\u003e\n  \u003cli\u003eFollow the engine service manual for lower-unit removal, installation sequence, fastener torque, and testing procedures.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are not experienced with outboard 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 aftermarket components for routine service and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and fitment conditions are provided to help you compare your engine before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — Review the listed model, year, stroke, and included components carefully before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968975163,"sku":"22KY013","price":31.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_4_5HP_6F5-W0078_-_JLM_MARINE-8288841.jpg?v=1763038739"},{"product_id":"water-pump-impeller-kit-fits-yamaha-4-5hp-replaces-6e0-w0078-a2-00","title":"Water Pump Repair Kit with Housing – Fits Yamaha 4HP\/5HP 2-Stroke and F4 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 {\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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis water pump repair kit with housing is intended for servicing the cooling-water pump on selected Yamaha outboard motors. It is listed for Yamaha 4HP and 5HP 2-stroke applications from 1982–2023 and Yamaha F4 4-stroke applications from 1982–2008.\u003c\/p\u003e\n\u003cp\u003eThe kit is identified as a water pump service or repair kit with a pump housing. It is supplied for water pump maintenance and replacement and should be matched to the exact engine model, year, stroke, and applicable part number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWater pump repair kit supplied with a water pump housing.\u003c\/li\u003e\n  \u003cli\u003eDesigned for water pump service on selected Yamaha 4HP and 5HP outboards.\u003c\/li\u003e\n  \u003cli\u003eAlso listed for selected Yamaha F4 4-stroke outboards.\u003c\/li\u003e\n  \u003cli\u003eUse the part-number and compatibility information below to confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following Yamaha references are associated with this water pump repair kit. Part-number association does not replace checking the complete engine application.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Yamaha part number references\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart 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\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-00-00\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-01-00\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003ctd\u003eWater pump repair-kit reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003ctd\u003eWater pump repair-kit reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e68D-WG078-00-00\u003c\/td\u003e\n\u003ctd\u003eListed F4 4-stroke repair-kit reference\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\u003eFitment depends on the complete engine configuration. Confirm the model designation, production year, horsepower, stroke, and existing water pump part number before purchase. The company fitment information lists the following application ranges:\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Compatible Yamaha engine applications\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eListed Years\u003c\/th\u003e\n        \u003cth\u003eRelated Part Numbers\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\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eSelected 4HP and 5HP outboards\u003c\/td\u003e\n        \u003ctd\u003e4, 5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1982–1996\u003c\/td\u003e\n        \u003ctd\u003e6E0-W0078-00-00\u003cbr\u003e6E0-W0078-01-00\u003cbr\u003e6E0-W0078-02-00\u003cbr\u003e6E0-W0078-A2-00\u003c\/td\u003e\n        \u003ctd\u003eConfirm the exact engine model before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eSelected 4HP and 5HP outboards\u003c\/td\u003e\n        \u003ctd\u003e4, 5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2023\u003c\/td\u003e\n        \u003ctd\u003e6E0-W0078-00-00\u003cbr\u003e6E0-W0078-01-00\u003cbr\u003e6E0-W0078-02-00\u003cbr\u003e6E0-W0078-A2-00\u003c\/td\u003e\n        \u003ctd\u003eLater-year fitment remains model-specific; verify the engine identification label.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF4 outboards\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1982–2008\u003c\/td\u003e\n        \u003ctd\u003e68D-WG078-00-00\u003cbr\u003e6E0-W0078-00-00\u003cbr\u003e6E0-W0078-01-00\u003cbr\u003e6E0-W0078-02-00\u003c\/td\u003e\n        \u003ctd\u003eVerify the exact F4 model and water pump reference.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCatalog-listed examples\u003c\/h3\u003e\n\u003cp\u003eParts-catalog occurrences associate the 6E0-W0078 repair-kit references with selected Yamaha 4HP and 5HP 2-stroke models, including 4LK, 4LN, 4SK, 4SN, 5LK, 5LN, 5SK, and 5SN applications in the catalog records reviewed. The 6E0-W0078-A2-00 and 6E0-W0078-A3-00 references also appear with selected 1996–2002 4HP and 5HP 2-stroke models. The 68D-WG078-00-00 reference appears with selected Yamaha F4 4-stroke models from 2002–2009 in the catalog records reviewed. These examples are not an exhaustive fitment list and do not override the company-listed application ranges.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump repair kit with housing\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Yamaha 4HP and 5HP 2-stroke outboards and Yamaha F4 4-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eWater pump service or replacement installation\u003c\/dd\u003e\n  \u003cdt\u003eFitment Verification\u003c\/dt\u003e\n  \u003cdd\u003eMatch the engine model, year, horsepower, stroke, and water pump part number before installation\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 repair kit with housing\u003c\/li\u003e\n  \u003cli\u003eService components intended for the listed water pump application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComponent details and hardware configuration can vary by application. Compare the supplied parts with the original water pump assembly before beginning installation. Do not assume that a component listed for one engine application fits every engine in the horsepower range.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the engine model, year, horsepower, stroke, and existing water pump reference before starting work.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery or follow the engine manufacturer's required safety procedure, and place the outboard in a stable service position.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the manufacturer's service instructions.\u003c\/li\u003e\n  \u003cli\u003eRemove the existing water pump housing and related service components. Note the orientation of the impeller and the position of any key, pin, plate, gasket, or seal before removal.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surfaces and inspect the driveshaft, keyway, water tube, and surrounding components for wear, corrosion, or damage.\u003c\/li\u003e\n  \u003cli\u003eCompare the new housing and service components with the original parts before assembly.\u003c\/li\u003e\n  \u003cli\u003eInstall the repair-kit components in the correct order and orient the impeller vanes according to the manufacturer's procedure.\u003c\/li\u003e\n  \u003cli\u003eUse only suitable lubricant or assembly products recommended for the water pump components. Do not run the impeller dry.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit and tighten fasteners to the manufacturer's specified torque and sequence.\u003c\/li\u003e\n  \u003cli\u003eTest the outboard using an appropriate water supply or flush attachment. Confirm a steady cooling-water discharge and check for leaks before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow can I confirm this kit fits my motor?\u003c\/summary\u003e\n  \u003cp\u003eCheck the complete engine model and year, rated horsepower, stroke, and existing water pump part number. The 4HP, 5HP, and F4 application ranges are not universal across every model or production year.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common symptoms of a worn water pump?\u003c\/summary\u003e\n  \u003cp\u003eA weak or missing tell-tale stream, overheating, an overheating warning, or reduced cooling performance can indicate a worn impeller or another water-pump or cooling-system problem. Stop operation and diagnose the cause before continued use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this product include the water pump housing?\u003c\/summary\u003e\n  \u003cp\u003eYes. The company product description identifies this item as a water pump service or repair kit with housing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a complete lower-unit assembly?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is a water pump repair kit with housing for servicing the water pump. It is not a complete lower unit or a complete gearcase assembly.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I install it without checking the original part?\u003c\/summary\u003e\n  \u003cp\u003eNo. Compare the original water pump assembly, part number, mounting arrangement, and engine identification before installation. Related part numbers can apply to different model, year, or stroke conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should a water pump be serviced?\u003c\/summary\u003e\n  \u003cp\u003eService intervals depend on the engine manufacturer's maintenance schedule and operating conditions. Inspection or replacement may be needed sooner when the outboard is used in sandy, silty, salty, or debris-filled water.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the exact engine model, year, horsepower, stroke, and part number before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not treat a general horsepower match as confirmation of fitment.\u003c\/li\u003e\n  \u003cli\u003eInspect all supplied and reused components before assembly.\u003c\/li\u003e\n  \u003cli\u003eNever operate an outboard without an adequate water supply to the cooling system.\u003c\/li\u003e\n  \u003cli\u003eFollow the manufacturer's service procedures and torque specifications; professional installation is recommended when required.\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 service 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 ranges are provided to help you compare your engine before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Maintenance Work\u003c\/strong\u003e — Review the engine identification and original component details whenever application-specific fitment is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969007931,"sku":"17KY004","price":35.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_4HP_5HP___6E0-W0078-A2-00_6E0-W0078-02-00_6E0-W0078-01-00_6E0-W0078-00-00_-_JLM_MARINE-8286392.jpg?v=1763038741"},{"product_id":"water-pump-impeller-kit-fits-yamaha-4hp-5hp-replaces-6e0-w0078-a2-00","title":"Water Pump Repair Kit – Yamaha 4 HP \u0026 5 HP 2-Stroke Outboards (Selected 1984–2002 Models)","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\u003ewater pump repair kit\u003c\/strong\u003e is designed for selected Yamaha 4 HP and 5 HP 2-stroke outboards. It is listed in engine parts catalogs as a water pump repair kit for specific Yamaha models and model years from 1984 through 2002. Confirm the exact model, year, and existing water pump part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThe kit is associated with Yamaha water pump repair kit references including \u003cstrong\u003e6E0-W0078-02-00\u003c\/strong\u003e for selected 1984–1985 models, \u003cstrong\u003e6E0-W0078-A2-00\u003c\/strong\u003e for selected 1996 models, and \u003cstrong\u003e6E0-W0078-A3-00\u003c\/strong\u003e for selected 1997–2002 models. These references apply only to the model and year combinations shown below; a shared part number does not confirm fitment for every 4 HP or 5 HP outboard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement water pump repair kit for selected Yamaha 4 HP and 5 HP 2-stroke outboards.\u003c\/li\u003e\n\u003cli\u003eDesigned for water pump service and restoration of proper cooling-water circulation.\u003c\/li\u003e\n\u003cli\u003eUse the existing parts and the engine service information to confirm installation orientation and required hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following references are documented for the specific Yamaha applications listed in the compatibility table. They should not be treated as universal equivalents outside those applications.\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\u003eWater Pump Repair Kit Reference\u003c\/th\u003e\n\u003cth\u003eDocumented Application Scope\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003ctd\u003eSelected 1984–1985 Yamaha 4 HP and 5 HP 2-stroke models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003ctd\u003eSelected 1996 Yamaha 4 HP and 5 HP 2-stroke models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003ctd\u003eSelected 1997–2002 Yamaha 4 HP and 5 HP 2-stroke models\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\u003eFitment is limited to the documented Yamaha 2-stroke applications below. Model suffixes, year, and stroke must all match. Always compare the part number on the original water pump kit with the applicable reference before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Yamaha Engine Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel Examples\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eApplicable Reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e4LK, 4LN, 4SK, 4SN\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1985\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5LK, 5LN, 5SK, 5SN\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1985\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e4MLHU, 4MLHU2, 4MSHU, 4MSHU2\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5MLHU, 5MLHU2, 5MSHU, 5MSHU2\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e4MLHV, 4MSHV, 4MLHW, 4MSHW, 4MLHX, 4MSHX\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–1999\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5MLHV, 5MSHV, 5MLHW, 5MSHW, 5MLHX, 5MSHX\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–1999\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5MLHY, 5MSHY, 5MSHKZ, 5MSHZ, 5MSHA\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2000–2002\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eNot confirmed:\u003c\/strong\u003e Yamaha 4-stroke F4 models and Mariner models are not included in the verified application scope for this listing. Do not use the kit for those engines unless the exact engine catalog and part number independently confirm compatibility.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater pump repair kit\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Yamaha 4 HP and 5 HP 2-stroke outboards\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement water pump service component\u003c\/dd\u003e\n\u003cdt\u003eAftermarket Status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement; not manufactured by Yamaha\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cp\u003eThis listing is supplied as a water pump repair kit. The kit is intended to replace the water pump service components shown in the product imagery and associated application listing. Component configuration may vary by production batch; compare the supplied parts with the original assembly before installation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater pump repair components for the applicable Yamaha lower unit\u003c\/li\u003e\n\u003cli\u003eImpeller and related water pump service components as applicable to the kit configuration\u003c\/li\u003e\n\u003cli\u003eGaskets, seals, plates, insert, dowel pin, and fasteners where included in the illustrated kit configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not assume that every component listed for a Yamaha OEM assembly is included unless it is visible in the package or specifically identified by the seller.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the spark plug wire and secure the engine against accidental starting. Follow the service manual for your exact model.\u003c\/li\u003e\n\u003cli\u003eRemove the lower unit according to the engine manufacturer's procedure, taking care not to damage the shift shaft, driveshaft, or water tube.\u003c\/li\u003e\n\u003cli\u003eRemove the existing water pump components and note the orientation of the impeller vanes, gasket, plate, and water pump housing.\u003c\/li\u003e\n\u003cli\u003eClean all mating surfaces and inspect the driveshaft, keyway, water tube, and lower-unit sealing surfaces before assembly.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement gasket, plate, impeller, key or dowel, and housing components in the same arrangement as the original assembly and service-manual diagram.\u003c\/li\u003e\n\u003cli\u003eRotate the driveshaft in the specified direction while seating the impeller so the vanes fold correctly inside the housing.\u003c\/li\u003e\n\u003cli\u003eInstall and tighten the water pump fasteners to the torque specification for the exact engine model.\u003c\/li\u003e\n\u003cli\u003eReinstall the lower unit, confirming correct alignment of the driveshaft, shift shaft, and water tube.\u003c\/li\u003e\n\u003cli\u003eRun the engine in an appropriate test tank or in the water and confirm a strong, continuous cooling-water discharge before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eMaintenance \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if the water pump needs service?\u003c\/summary\u003e\n\u003cp\u003eCommon warning signs include weak or absent cooling-water discharge, overheating, an engine temperature alarm, or an impeller that is cracked, brittle, deformed, or damaged. Inspect the complete water pump assembly if cooling performance changes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this kit fit every Yamaha 4 HP or 5 HP outboard?\u003c\/summary\u003e\n\u003cp\u003eNo. Fitment is limited to the Yamaha 2-stroke model and year combinations documented in the compatibility table. Horsepower alone is not sufficient to confirm fitment because water pump designs and part references can vary by model suffix and year.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this kit fit Yamaha F4 four-stroke engines?\u003c\/summary\u003e\n\u003cp\u003eFour-stroke F4 fitment is not confirmed for this listing. Use the exact four-stroke engine model and serial information to identify the correct water pump kit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this kit fit Mariner 4 HP or 5 HP outboards?\u003c\/summary\u003e\n\u003cp\u003eMariner fitment is not confirmed for this listing. Do not order based only on horsepower or a similar-looking engine; verify the exact Mariner model, year, serial range, and water pump reference first.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this an OEM Yamaha part?\u003c\/summary\u003e\n\u003cp\u003eNo. This is an aftermarket replacement water pump repair kit. Yamaha and the listed Yamaha part references are used only to identify the documented application and replacement reference.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\n\u003cp\u003eInspect the impeller and water pump during scheduled service and replace them when wear, cracking, hardening, deformation, or reduced cooling-water flow is found. Operating conditions such as saltwater, sand, or silt may require more frequent inspection.\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 engine model, year, stroke, and part number before ordering.\u003c\/li\u003e\n\u003cli\u003eDo not rely on horsepower alone to determine compatibility.\u003c\/li\u003e\n\u003cli\u003eUse the service manual for the exact engine when removing or installing the lower unit and water pump.\u003c\/li\u003e\n\u003cli\u003eDo not operate the engine if the cooling-water discharge is weak or absent.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when lower-unit or water-pump service procedures are unfamiliar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement marine parts for routine maintenance and repair.\u003c\/li\u003e\n\u003cli\u003eApplication-focused listings with model and part-number information where available.\u003c\/li\u003e\n\u003cli\u003eSupport for selecting replacement components based on the engine's exact specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969073467,"sku":"SIE-17KY001","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/SIE-17KY001_1_274adcd4-c65d-448d-94be-b008ef3a723e.jpg?v=1763038745"},{"product_id":"carburetor-fits-mercury-mariner-quicksilver-4-5hp-2-stroke-replaces-812648t-3303-812648t-369-03200-2","title":"Carburetor for Mercury Mariner 4–5 HP 2-Stroke Outboards – Replaces 3303-812647T1, 812648T","description":"\u003cstyle\u003e\n\/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n.ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\/* Base table styles *\/\ntable.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\ntable.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n\/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\ntable.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\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 is a replacement \u003cstrong\u003ecarburetor for Mercury Mariner 4–5 HP 2-stroke outboard engines\u003c\/strong\u003e. It is supplied as a single carburetor and is intended for applications using the matching original carburetor and mounting arrangement.\u003c\/p\u003e\n\u003cp\u003eThe company catalog identifies this product with Mercury reference numbers \u003cstrong\u003e3303-812647T1\u003c\/strong\u003e and \u003cstrong\u003e812648T\u003c\/strong\u003e. Marine parts catalog records also list the related reference \u003cstrong\u003e3303-812648T\u003c\/strong\u003e as a carburetor for selected Mercury 4 HP and 5 HP 2-stroke applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement carburetor for selected Mercury and Mariner 4–5 HP 2-stroke outboards.\u003c\/li\u003e\n\u003cli\u003eSingle carburetor assembly; this is not a multi-part kit.\u003c\/li\u003e\n\u003cli\u003eUse the original carburetor, engine model, horsepower, stroke, and serial number to confirm compatibility 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\u003eUse the following manufacturer and catalog references when comparing your original component. Number listings are reference identifiers and should be confirmed against the complete engine application.\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\u003eReference Number\u003c\/th\u003e\n\u003cth\u003eApplication Note\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\u003e3303-812647T1\u003c\/td\u003e\n\u003ctd\u003eCompany-listed carburetor reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e812648T\u003c\/td\u003e\n\u003ctd\u003eCompany-listed carburetor reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e3303-812648T\u003c\/td\u003e\n\u003ctd\u003eCatalog-listed carburetor reference for selected 4 HP and 5 HP 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 Compatibility\u003c\/h2\u003e\n\u003cp\u003eCatalog records associate reference \u003cstrong\u003e3303-812648T\u003c\/strong\u003e with selected Mercury 4 HP and 5 HP 2-stroke outboards in the serial-number ranges below. Keep the horsepower, stroke, model, and serial range together when checking fitment.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Compatible Engine Applications\"\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 Range\u003c\/th\u003e\n\u003cth\u003eCatalog Reference\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\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0G710613 through 0T894438\u003c\/td\u003e\n\u003ctd\u003e3303-812648T\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\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0G710613 through 0T894438\u003c\/td\u003e\n\u003ctd\u003e3303-812648T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0T894439 and up\u003c\/td\u003e\n\u003ctd\u003e3303-812648T\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\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0T894439 and up\u003c\/td\u003e\n\u003ctd\u003e3303-812648T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0P017000 through 0P400999\u003c\/td\u003e\n\u003ctd\u003e3303-812648T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0P401000 and up\u003c\/td\u003e\n\u003ctd\u003e3303-812648T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eFor Mariner applications, compare the engine nameplate and serial number with the original carburetor and the seller’s fitment information. Do not rely on horsepower alone, because serial-number breaks can change the correct carburetor.\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\u003eCarburetor\u003c\/dd\u003e\n\u003cdt\u003eProduct Configuration\u003c\/dt\u003e\n\u003cdd\u003eSingle replacement component, not a kit\u003c\/dd\u003e\n\u003cdt\u003eBrand Application\u003c\/dt\u003e\n\u003cdd\u003eMercury Mariner\u003c\/dd\u003e\n\u003cdt\u003eEngine Application\u003c\/dt\u003e\n\u003cdd\u003eSelected 4–5 HP 2-stroke outboards\u003c\/dd\u003e\n\u003cdt\u003eFuel System\u003c\/dt\u003e\n\u003cdd\u003eCarbureted 2-stroke outboard fuel system\u003c\/dd\u003e\n\u003cdt\u003eCompany-Listed References\u003c\/dt\u003e\n\u003cdd\u003e3303-812647T1 and 812648T\u003c\/dd\u003e\n\u003cdt\u003eAdditional Catalog Reference\u003c\/dt\u003e\n\u003cdd\u003e3303-812648T\u003c\/dd\u003e\n\u003cdt\u003eFitment Requirement\u003c\/dt\u003e\n\u003cdd\u003eMatch the original carburetor, engine model, horsepower, stroke, and serial number\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 Carburetor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGaskets, hoses, linkages, mounting hardware, and other accessories are not listed as included unless specifically shown or stated with the product.\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, disconnect the battery where applicable, and close or disconnect the fuel supply.\u003c\/li\u003e\n\u003cli\u003eRemove the engine cowling and photograph the existing throttle, choke, fuel-line, and linkage connections before disassembly.\u003c\/li\u003e\n\u003cli\u003eDisconnect the fuel line and any throttle or choke linkages from the original carburetor.\u003c\/li\u003e\n\u003cli\u003eRemove the retaining hardware and old carburetor. Protect the intake opening from dirt and debris.\u003c\/li\u003e\n\u003cli\u003eInspect the mating surface and install the replacement carburetor with the correct gasket or sealing components for your engine.\u003c\/li\u003e\n\u003cli\u003eReconnect the fuel line and all linkages in their original positions, then tighten the mounting hardware evenly.\u003c\/li\u003e\n\u003cli\u003eCheck for fuel leaks before starting the engine. Prime the fuel system as required by the engine manufacturer.\u003c\/li\u003e\n\u003cli\u003eStart and test the engine in a safe, well-ventilated area. Adjust idle or mixture settings only according to the applicable service procedure.\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 carburetor fits my engine?\u003c\/summary\u003e\n\u003cp\u003eCompare your original carburetor and its reference number with the numbers listed above, then verify the engine brand, model, horsepower, 2-stroke configuration, and serial-number range. Do not confirm fitment from horsepower alone.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this listing include a complete carburetor kit?\u003c\/summary\u003e\n\u003cp\u003eNo. The company record identifies this product as a single carburetor rather than a kit. Additional gaskets, hoses, linkages, and mounting hardware are not included unless separately stated.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill the carburetor require adjustment after installation?\u003c\/summary\u003e\n\u003cp\u003eAdjustment requirements depend on the engine and its service specifications. After installation, check for leaks and follow the applicable manufacturer procedure for starting, idle speed, and mixture adjustment.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat symptoms can indicate a carburetor problem?\u003c\/summary\u003e\n\u003cp\u003eHard starting, rough idle, stalling, hesitation, surging, poor acceleration, or fuel leakage can be associated with carburetor issues. These symptoms can also result from fuel restrictions, ignition faults, air leaks, or incorrect adjustment, so inspect the complete fuel and ignition systems before replacing parts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I clean the original carburetor instead of replacing it?\u003c\/summary\u003e\n\u003cp\u003eCleaning may help when the problem is caused by varnish or blocked passages. It may not correct worn, damaged, corroded, or distorted components. Compare the condition of the original carburetor with the replacement before deciding which repair is appropriate.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do before storing the outboard?\u003c\/summary\u003e\n\u003cp\u003eFollow the engine manufacturer's storage procedure. Use fresh fuel, stabilize the fuel when appropriate, and protect the fuel system from contamination and moisture during storage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this an OEM Mercury component?\u003c\/summary\u003e\n\u003cp\u003eThis listing is for a replacement carburetor. The listed Mercury reference numbers are provided for identification and fitment comparison; the product should not be treated as a genuine OEM component unless the listing specifically states otherwise.\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 carburetor appearance, connections, reference number, engine model, horsepower, stroke, and serial range before ordering.\u003c\/li\u003e\n\u003cli\u003eFuel is flammable. Work in a well-ventilated area away from flames, sparks, and other ignition sources.\u003c\/li\u003e\n\u003cli\u003eDisconnect the fuel supply before removing the carburetor and check carefully for leaks after installation.\u003c\/li\u003e\n\u003cli\u003eUse the correct gasket and follow the engine manufacturer's service instructions and torque specifications.\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\u003e\n\u003cb\u003eMarine Replacement Parts\u003c\/b\u003e — We provide replacement components for common outboard repair applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFitment-Focused Listings\u003c\/b\u003e — Reference numbers and application details are provided to help you compare the replacement with your original part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePractical Support\u003c\/b\u003e — When checking fitment, have your engine brand, model, horsepower, stroke, and serial number available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723976380731,"sku":"19CA48T","price":57.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Carburetor_for_Mercury_4HP_5HP__812648T_-_JLM_MARINE-8288076.jpg?v=1763039025"}],"url":"https:\/\/seasierra.com\/collections\/mercury-2-stroke-4-5hp-outboard-engine-parts.oembed?page=2","provider":"SeaSierra","version":"1.0","type":"link"}