{"title":"Tohatsu 4-Stroke 8-9.9HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003cp\u003eThis page is dedicated to Tohatsu 4-Stroke 8–9.9HP outboard engines. Use it to find compatible parts, routine service information, maintenance tips, common replacement items, and troubleshooting guidance. You can also browse our main Tohatsu collection. Scroll to the bottom of this page to start browsing parts for this engine, and on the collection page use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category or section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#004a7f;color:#fff;text-decoration:none;border-radius:4px;\"\u003eBrowse All Tohatsu Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 8–9.9HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the ID\/serial plate on the transom clamp bracket (typically starboard side) or on the swivel bracket. The sticker shows the model code and serial number.\u003c\/li\u003e\n    \u003cli\u003eModel codes for 4-stroke units commonly begin with “MFS” (e.g., MFS8, MFS9.8, MFS9.9). Suffix letters indicate features: S\/L for 15\/20 in shaft, E for electric start, and remote\/tiller variants.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: Carbureted versions have a manual choke\/primer and mechanical carb; EFI versions reference an ECM in wiring and parts lists. All engines here are 4-stroke, twin-cylinder outboards.\u003c\/li\u003e\n    \u003cli\u003eShared components: Many cooling and gearcase parts interchange between 8HP and 9.8HP models; verify by model code and serial for best fit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eMFS8 \/ MFS9.8 Carbureted 4‑Stroke\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInline-2, SOHC 4-stroke, carbureted; manual or electric start; tiller or remote options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eExamples include MFS8 (S\/L) and MFS9.8 (S\/L) with various electric start\/remote suffixes.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eLightweight, simple maintenance, very good fuel economy for displacement hulls and tenders.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWater pump kits, anodes, and many gearcase seals are shared between 8HP and 9.8HP variants. Match props by shaft and gear ratio.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eMFS9.9 EFI 4‑Stroke (select variants)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInline-2, SOHC 4-stroke with electronic fuel injection (ECM-controlled); manual or electric start; tiller or remote options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eMFS9.9 EFI variants; confirm by model sticker and serial for exact parts.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eImproved cold starts and throttle response, efficient fuel delivery, and lower emissions.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCooling and gearcase components often align with carbureted models; fuel and electrical parts differ (injectors, high-pressure filter, ECM).\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=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for typical recreational use. Always follow the service schedule and procedures in your official Tohatsu service manual.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEngine oil \u0026amp; filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInitial 20 hrs, then every 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eUse marine 4-stroke oil to spec; replace the oil filter at each service.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCheck for water\/milkiness; replace crush washers; reseal if contamination is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-lower-unit-seal-kits\"\u003eTohatsu Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect 100 hrs; replace 200 hrs or as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eGap to spec; replace sooner if fouled from rich running or storage issues.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plug\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eFuel filter \/ inline filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace more often with ethanol fuel or dirty tanks; verify flow direction.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eEvery 2–3 seasons or 200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace sooner if weak telltale or overheat; renew housing if scored.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAnodes (internal \u0026amp; external)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect 50 hrs; replace when 50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eChoose zinc (saltwater) or aluminum\/magnesium per environment; ensure tight, clean contact.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller \u0026amp; cotter\/lock hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect each trip; service annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCheck for dings and proper pitch; grease splines; carry a spare cotter pin.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eThermostat\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect annually; replace ~2 years\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eStuck thermostats cause cold running or overheat; replace gasket when servicing.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service – \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System – \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System – \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical – \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals – \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-lower-unit-seal-kits\"\u003eTohatsu Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion – \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\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=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWeak telltale \/ overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect intake screens for debris, verify thermostat operation, and check impeller condition; confirm good hose pressure on muffs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screen, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePrime bulb firm, fresh fuel, clean plugs; carb models: choke\/enrichment and idle mixture; EFI models: battery voltage and injector\/fuel filter condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eSpark plugs, fuel filter, carburetor kit, injector\/filter (EFI)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eProp damage or wrong pitch, compression check, restricted fuel flow, misfire, or partially clogged jets\/injectors.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller, fuel filter, carburetor kit or injector service, ignition coils\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eGearcase noise \/ metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCheck for water intrusion, inspect drain plug seals, evaluate shaft\/bearing play; reseal if needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eLower unit seal kit, bearings, drain plug gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWeak charging (electric-start models)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eTest battery and connections, inspect rectifier\/regulator wiring, verify stator output.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eRectifier\/regulator, stator, battery cables\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=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between 8HP, 9.8HP, and 9.9HP models?\u003c\/summary\u003e\n    \u003cp\u003eMany wear items (water pump components, anodes, several gearcase seals) interchange between 8HP and 9.8HP carbureted platforms. EFI 9.9HP models share numerous mechanical parts but differ in fuel and electrical components. Always verify by model code, serial, and configuration.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eFor typical recreational use, replace the impeller every 2–3 seasons (about 200 hours) or sooner if the telltale weakens, overheating occurs, or you strike sand\/debris. Consider a full pump kit if the wear plate or cup is scored.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the gear oil?\u003c\/summary\u003e\n    \u003cp\u003eChange the gear oil every 100 hours or annually. Inspect for water (milky color) or metal on the magnet. If contamination is present, replace drain plug gaskets and perform a pressure\/vacuum test; reseal with a lower unit seal kit if needed.\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\u003eProvide the full model code (e.g., MFS8\/MFS9.8\/MFS9.9 with suffix), serial number, shaft length (S\/L\/XL), starting\/control type (manual\/electric; tiller\/remote), and a photo of the nameplate and the part you’re replacing.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003cp\u003eReady to find parts for your Tohatsu by horsepower, year, and model? Browse our main collection and use the filters to narrow your search.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block;margin:6px 0 10px 0;padding:10px 14px;background:#004a7f;color:#fff;text-decoration:none;border-radius:4px;\"\u003eShop Tohatsu Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"font-size:0.95em;color:#333;\"\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":"water-pump-impeller-fits-tohatsu-nissan-mercury-40-90hp-2-stroke-replaces-3b7-65021-2","title":"Water Pump Impeller for Nissan\/Tohatsu 2-Stroke 60–140 HP – Replaces 3C7-65021-1 and 3B7-65022-0","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller\u003c\/strong\u003e is designed for selected Nissan and Tohatsu marine outboards. It is a replacement cooling-system component for the applications listed below, including selected 2-stroke 60–140 HP engines and Nissan 70\/90 TLDI and 120A\/140A models.\u003c\/p\u003e\n    \u003cp\u003eThe impeller is sold as a \u003cstrong\u003esingle replacement component\u003c\/strong\u003e. It is listed as an aftermarket replacement for \u003cstrong\u003eSierra Marine 18-8924\u003c\/strong\u003e and is cross-referenced with the manufacturer part numbers shown in the matrix below.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Water pump impeller for an outboard cooling system.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Selected Nissan and Tohatsu marine outboards.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine range:\u003c\/strong\u003e Listed applications include 2-stroke 60\/70\/90 HP and 2-stroke 115\/120\/140 HP models.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFitment requirement:\u003c\/strong\u003e Confirm the complete engine model and original part number before ordering.\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 replacement impeller with your existing part. A part-number match should still be checked against the engine model.\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\u003eTohatsu\/Nissan manufacturer reference\u003c\/td\u003e\n            \u003ctd\u003e3C7-65021-1\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eTohatsu\/Nissan manufacturer reference\u003c\/td\u003e\n            \u003ctd\u003e3C7650211M\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eTohatsu\/Nissan manufacturer reference\u003c\/td\u003e\n            \u003ctd\u003e3B7-65022-0\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eTohatsu\/Nissan manufacturer reference\u003c\/td\u003e\n            \u003ctd\u003e3B7650220M\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003eAftermarket reference\u003c\/td\u003e\n            \u003ctd\u003eSierra Marine 18-8924\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 company fitment information identifies the following Nissan and Tohatsu applications. Engine model, year, and serial-number coverage can vary, so verify all identifying details before installation.\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n        \u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth\u003eBrand\u003c\/th\u003e\n                    \u003cth\u003eModel or Application\u003c\/th\u003e\n                    \u003cth\u003eRated HP\u003c\/th\u003e\n                    \u003cth\u003eStroke\u003c\/th\u003e\n                    \u003cth\u003eReference\u003c\/th\u003e\n                    \u003cth\u003eFitment Notes\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n                    \u003ctd\u003e60 HP applications\u003c\/td\u003e\n                    \u003ctd\u003e60 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e3C7-65021-1 \/ 3B7-65022-0\u003c\/td\u003e\n                    \u003ctd\u003eConfirm the exact engine model and original impeller number.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n                    \u003ctd\u003e70 HP applications\u003c\/td\u003e\n                    \u003ctd\u003e70 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e3C7-65021-1 \/ 3B7-65022-0\u003c\/td\u003e\n                    \u003ctd\u003eConfirm the exact engine model and original impeller number.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n                    \u003ctd\u003e90 HP applications\u003c\/td\u003e\n                    \u003ctd\u003e90 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e3C7-65021-1 \/ 3B7-65022-0\u003c\/td\u003e\n                    \u003ctd\u003eIncludes selected Nissan\/Tohatsu 90 TLDI applications; verify model details.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n                    \u003ctd\u003e115 HP applications\u003c\/td\u003e\n                    \u003ctd\u003e115 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e3C7-65021-1 \/ 3B7-65022-0\u003c\/td\u003e\n                    \u003ctd\u003eConfirm the exact engine model and original impeller number.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n                    \u003ctd\u003e120A applications\u003c\/td\u003e\n                    \u003ctd\u003e120 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e3C7-65021-1 \/ 3B7-65022-0\u003c\/td\u003e\n                    \u003ctd\u003eListed by the company as a Nissan application; verify the complete model designation.\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eNissan\/Tohatsu\u003c\/td\u003e\n                    \u003ctd\u003e140A applications\u003c\/td\u003e\n                    \u003ctd\u003e140 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e3C7-65021-1 \/ 3B7-65022-0\u003c\/td\u003e\n                    \u003ctd\u003eListed by the company as a Nissan application; verify the complete model designation.\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 Nissan and Tohatsu marine outboards\u003c\/dd\u003e\n        \u003cdt\u003eStroke Applications\u003c\/dt\u003e\n        \u003cdd\u003e2-stroke applications listed by the company\u003c\/dd\u003e\n        \u003cdt\u003eHorsepower Range\u003c\/dt\u003e\n        \u003cdd\u003e60–140 HP, subject to the specific model and application\u003c\/dd\u003e\n        \u003cdt\u003eAftermarket Reference\u003c\/dt\u003e\n        \u003cdd\u003eSierra Marine 18-8924\u003c\/dd\u003e\n        \u003cdt\u003eManufacturer References\u003c\/dt\u003e\n        \u003cdd\u003e3C7-65021-1, 3C7650211M, 3B7-65022-0, 3B7650220M\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\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n    \u003col\u003e\n        \u003cli\u003eDisconnect the battery and follow the engine manufacturer’s safety procedures before beginning work.\u003c\/li\u003e\n        \u003cli\u003eRemove the lower unit or gearcase according to the service manual for your specific engine.\u003c\/li\u003e\n        \u003cli\u003eRemove the water pump housing and take out the old impeller.\u003c\/li\u003e\n        \u003cli\u003eInspect the pump housing, wear plate, seals, and related components for wear or damage.\u003c\/li\u003e\n        \u003cli\u003eClean the pump housing and mating surfaces before installing the replacement impeller.\u003c\/li\u003e\n        \u003cli\u003eInstall the impeller in the correct orientation for the engine’s normal rotation.\u003c\/li\u003e\n        \u003cli\u003eReassemble the water pump and lower unit using the service manual’s gasket, seal, and torque procedures.\u003c\/li\u003e\n        \u003cli\u003eRestore the shift linkage and battery connections, then run the engine with an appropriate water supply.\u003c\/li\u003e\n        \u003cli\u003eConfirm that cooling-water circulation and the telltale stream are functioning normally before use.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\n    \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow do I know if this impeller fits my engine?\u003c\/summary\u003e\n        \u003cp\u003eCompare your complete engine model and original impeller number with the Engine \u0026amp; Model Compatibility and Part Number Matrix sections. This listing is intended for selected Nissan and Tohatsu applications, including the 2-stroke 60\/70\/90 HP and 115\/120\/140 HP applications identified above.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat are the signs of a worn water pump impeller?\u003c\/summary\u003e\n        \u003cp\u003eTypical warning signs can include overheating, a weak or missing telltale stream, or reduced cooling-water circulation. Inspect the impeller and the complete water pump assembly if any of these symptoms occur.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eDoes this listing include a complete water pump kit?\u003c\/summary\u003e\n        \u003cp\u003eNo. This listing is for one water pump impeller only. Gaskets, keys, wear plates, housings, and other water-pump components are not included unless specifically stated.\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 manufacturer and aftermarket numbers are provided for compatibility cross-reference only.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eShould I verify the part before installation?\u003c\/summary\u003e\n        \u003cp\u003eYes. Compare the replacement with the original part and verify the engine model, horsepower, stroke, and applicable part number before installation. Do not install the impeller if the dimensions, hub, or other identifying features do not match.\u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003eVerify the complete engine model and original part number before ordering.\u003c\/li\u003e\n        \u003cli\u003eFitment references are application-specific and should not be extended to unlisted engine models.\u003c\/li\u003e\n        \u003cli\u003eThis is an aftermarket replacement component, not an original equipment manufacturer part.\u003c\/li\u003e\n        \u003cli\u003eProfessional installation is recommended when lower-unit removal or water-pump service is outside your experience.\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 supply replacement components for routine marine maintenance and repair.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Fitment\u003c\/strong\u003e — Product references are provided to help customers compare engine models and original part numbers.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePractical Value\u003c\/strong\u003e — Aftermarket replacement parts offer a practical option for maintaining compatible marine engines.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718264394043,"sku":"17IT005","price":17.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_for_Tohatsu_-_Mercury_3B7-65021-2_3B7650210M_3B7650212M_3C7-65021-1_-_JLM_MARINE-8289714.jpg?v=1762958470"},{"product_id":"carburetor-assembly-carburetor-assembly-fits-mercury-mariner-replaces-3303-895110t01-8m0176126","title":"Carburetor Assembly for Mercury\/Mariner 8HP and 9.9HP 4-Stroke Outboards – Replaces 3323-895110T01","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 { 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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis aftermarket \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e is designed as a replacement for selected Mercury and Mariner 8HP and 9.9HP four-stroke outboards. It replaces the recorded primary reference \u003cstrong\u003e3323-895110T01\u003c\/strong\u003e and is intended to restore proper fuel delivery when the original carburetor is worn, contaminated, damaged, or otherwise no longer operating correctly.\u003c\/p\u003e\n  \u003cp\u003eThe carburetor is supplied as a single replacement assembly. Confirm the engine model, horsepower, four-stroke configuration, serial-number range, mounting arrangement, and the original carburetor before ordering. Part-number references are provided for identification and cross-reference purposes; they do not replace model and serial-number verification.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eReplacement carburetor assembly for selected Mercury\/Mariner 8HP and 9.9HP four-stroke outboards.\u003c\/li\u003e\n    \u003cli\u003eDesigned to provide the correct fuel-air mixture when matched to the applicable engine.\u003c\/li\u003e\n    \u003cli\u003eAftermarket replacement component; not manufactured or branded by Mercury, Mariner, or Tohatsu.\u003c\/li\u003e\n    \u003cli\u003eUse the original part and the engine serial number to confirm fitment before installation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number References\u003c\/h2\u003e\n  \u003cp\u003eThe following numbers are recorded as references associated with this carburetor product. They may represent superseded, alternate, or cross-reference listings, so verify the exact application before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Carburetor part number references\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand or reference\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\u003ePrimary reference\u003c\/td\u003e\n\u003ctd\u003e3323-895110T01\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury reference\u003c\/td\u003e\n\u003ctd\u003e3303-895110T01\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury reference\u003c\/td\u003e\n\u003ctd\u003e3303-895110T11\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury reference\u003c\/td\u003e\n\u003ctd\u003e8M0104462\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury reference\u003c\/td\u003e\n\u003ctd\u003e1300-8M0167272\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury reference\u003c\/td\u003e\n\u003ctd\u003e8M0173875\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury reference\u003c\/td\u003e\n\u003ctd\u003e8M0176126\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu reference\u003c\/td\u003e\n\u003ctd\u003e3DP-03100-2\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n  \u003cp\u003eCatalog records associate reference \u003cstrong\u003e3303-895110T11\u003c\/strong\u003e with Mercury 8HP and 9.9HP 209cc four-stroke engines in the serial ranges shown below. These records are useful fitment leads, but the exact engine model and serial number must still be checked against the original part.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury engine compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eRated horsepower\u003c\/th\u003e\n\u003cth\u003eEngine type\u003c\/th\u003e\n\u003cth\u003eSerial 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\u003e8HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke, 209cc\u003c\/td\u003e\n\u003ctd\u003e0P325500 and up\u003c\/td\u003e\n\u003ctd\u003e3303-895110T11\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke, 209cc\u003c\/td\u003e\n\u003ctd\u003e0R042475 and up\u003c\/td\u003e\n\u003ctd\u003e3303-895110T11\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke, 209cc\u003c\/td\u003e\n\u003ctd\u003e0P325500 and up\u003c\/td\u003e\n\u003ctd\u003e3303-895110T11\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e9.9HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke, 209cc\u003c\/td\u003e\n\u003ctd\u003e0R042475 and up\u003c\/td\u003e\n\u003ctd\u003e3303-895110T11\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003eOther Mercury, Mariner, and equivalent Tohatsu applications may use related references, but compatibility should not be assumed from horsepower alone. Check the complete model designation, stroke type, serial number, carburetor shape, linkage arrangement, mounting points, and fuel connections.\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 assembly\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Mercury\/Mariner 8HP and 9.9HP four-stroke outboards\u003c\/dd\u003e\n    \u003cdt\u003eEngine displacement listed in catalog records\u003c\/dt\u003e\n\u003cdd\u003e209cc\u003c\/dd\u003e\n    \u003cdt\u003eFuel type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n    \u003cdt\u003eInstallation type\u003c\/dt\u003e\n\u003cdd\u003eReplacement assembly\u003c\/dd\u003e\n    \u003cdt\u003ePrimary reference\u003c\/dt\u003e\n\u003cdd\u003e3323-895110T01\u003c\/dd\u003e\n    \u003cdt\u003eAftermarket status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement; not an OEM-branded component\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Carburetor assembly\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eGaskets, seals, hoses, linkage hardware, and other installation parts are not listed as included unless specifically shown in the package supplied with your order. Reuse of existing hardware is subject to inspection and the engine manufacturer's service instructions.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eSwitch off the engine, allow it to cool, and follow the manufacturer's safety procedures before beginning work.\u003c\/li\u003e\n    \u003cli\u003eShut off or isolate the fuel supply and place an absorbent cloth beneath the fuel connections.\u003c\/li\u003e\n    \u003cli\u003eRemove the cowling and any components that obstruct access to the carburetor.\u003c\/li\u003e\n    \u003cli\u003eRecord the routing and attachment points of the fuel line, throttle linkage, choke linkage, and any other connected components before removal.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the fuel line and linkages, then remove the original carburetor and mounting hardware.\u003c\/li\u003e\n    \u003cli\u003eClean the mounting surfaces and inspect the existing gasket or seal. Replace damaged sealing components with the correct parts for the engine.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement carburetor in the same orientation and tighten the fasteners according to the engine manufacturer's specifications.\u003c\/li\u003e\n    \u003cli\u003eReconnect the fuel line and all linkages, checking that each linkage moves freely and returns correctly.\u003c\/li\u003e\n    \u003cli\u003eReinstall removed components and inspect the entire installation for loose connections or pinched lines.\u003c\/li\u003e\n    \u003cli\u003ePrime the fuel system as applicable and check carefully for leaks before starting the engine.\u003c\/li\u003e\n    \u003cli\u003eStart and warm the engine in a safe operating environment. Verify idle, throttle response, and fuel leakage before normal use.\u003c\/li\u003e\n  \u003c\/ol\u003e\n  \u003cp\u003eCarburetor installation and adjustment can affect engine safety and performance. If the model, serial range, linkage, or mounting arrangement does not match, do not force the part into place.\u003c\/p\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 the complete engine model and serial number with the compatibility information, then compare the original carburetor's mounting points, fuel connections, and linkage arrangement. Do not rely on horsepower alone.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM carburetor?\u003c\/summary\u003e\n    \u003cp\u003eNo. This listing is for an aftermarket replacement carburetor assembly. The listed Mercury, Mariner, and Tohatsu names and part numbers are used only to identify intended applications or reference numbers.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the carburetor include gaskets?\u003c\/summary\u003e\n    \u003cp\u003eThe package is listed as one carburetor assembly. Gaskets and other installation accessories are not confirmed as included, so inspect the supplied package and obtain the correct sealing parts separately when required.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this carburetor convert an 8HP engine into a 9.9HP engine?\u003c\/summary\u003e\n    \u003cp\u003eHorsepower conversion should not be assumed. Engine calibration, intake and exhaust components, ignition settings, emissions equipment, and local regulations may differ. Use this part only for a confirmed replacement application.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat symptoms may indicate a carburetor problem?\u003c\/summary\u003e\n    \u003cp\u003ePossible symptoms include hard starting, unstable idle, stalling, poor acceleration, fuel leakage, or an incorrect fuel mixture. These symptoms can also be caused by contaminated fuel, restricted fuel lines, ignition faults, or other engine problems.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the carburetor require adjustment after installation?\u003c\/summary\u003e\n    \u003cp\u003eFollow the engine manufacturer's service procedure. Idle or linkage adjustments may be required after installation, but do not alter sealed mixture settings unless the correct service instructions and specifications are available.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the exact engine model, stroke, serial number, and original part before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not install a part that differs in mounting, linkage, fuel connection, or overall configuration.\u003c\/li\u003e\n    \u003cli\u003eWork in a well-ventilated area away from sparks, flames, and other ignition sources.\u003c\/li\u003e\n    \u003cli\u003eCheck carefully for fuel leaks before starting or operating the engine.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when the correct fitment or adjustment procedure is uncertain.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine replacement parts\u003c\/strong\u003e — Parts are listed with application and reference information to support accurate selection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFitment-focused support\u003c\/strong\u003e — Compare your original component and engine identification details before ordering.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAftermarket value\u003c\/strong\u003e — Replacement components provide an alternative to branded OEM parts where the application is confirmed.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723985654075,"sku":"21CA001","price":58.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Carburetor_for_Mercury_8HP_99HP__8M0176126_-_JLM_MARINE-8288082.jpg?v=1763039450"},{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-8-9-9-hp-4-stroke-209cc-replaces-8m0120837-3v1-87500-0","title":"Water Pump Impeller Kit – Fits Mercury\/Mariner 8–9.9 HP 4-Stroke 209cc (Replaces 8M0120837, 803748K01, 3V1-87500-0)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller Kit for Mercury\/Mariner 8–9.9 HP 4-stroke 209cc outboard motors\u003c\/strong\u003e is a multi-component maintenance kit intended to service the water pump and related cooling-system components. It is designed for applicable Mercury, Mariner, and Tohatsu outboards using the specified standard gearcase configuration.\u003c\/p\u003e\n\u003cp\u003eThe kit is listed as a replacement for OEM reference numbers \u003cstrong\u003eMercury 8M0120837\u003c\/strong\u003e, \u003cstrong\u003eMercury 803748K01\u003c\/strong\u003e, and \u003cstrong\u003eTohatsu 3V1-87500-0\u003c\/strong\u003e. Confirm the engine model, year, serial number, gearcase configuration, and the original component numbers before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket replacement kit for water-pump and routine marine-engine maintenance.\u003c\/li\u003e\n\u003cli\u003eIncludes an impeller, keying hardware, thermostat, gaskets, and fuel-filter components as listed below.\u003c\/li\u003e\n\u003cli\u003eDesigned for gasoline-fueled 4-stroke outboard applications covered by the fitment information below.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstyle\u003e\n.ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\ntable.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\ntable.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\ntable.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n@media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these references as cross-reference leads and verify them against the number and configuration of the component being replaced.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0120837\u003c\/td\u003e\n\u003ctd\u003ePrimary product reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e803748K01\u003c\/td\u003e\n\u003ctd\u003eWater-pump reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3V1-87500-0\u003c\/td\u003e\n\u003ctd\u003eProduct 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\u003eFitment must be confirmed using the complete engine conditions, including brand, horsepower, 4-stroke configuration, model, year, serial number, and gearcase type.\u003c\/p\u003e\n\u003cp\u003eFor Mercury and Mariner applications, the supplied fitment information identifies 8 and 9.9 HP 4-stroke models from 2018 and newer with serial number 0R042475 and above and a standard gearcase.\u003c\/p\u003e\n\u003cp\u003eFor Tohatsu applications, the supplied fitment information identifies 209cc 4-stroke models including MFS8, MFS9.8B, and MFS6BZ. Verify the exact model and year before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\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\u003eF8\/F9.9\u003c\/td\u003e\n\u003ctd\u003e8–9.9\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2018+\u003c\/td\u003e\n\u003ctd\u003e8M0120837\u003c\/td\u003e\n\u003ctd\u003eStandard gearcase; S\/N 0R042475 and above\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS8\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3V1-87500-0\u003c\/td\u003e\n\u003ctd\u003e209cc; verify exact model and year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS9.8B\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3V1-87500-0\u003c\/td\u003e\n\u003ctd\u003e209cc; verify exact model and year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS6BZ\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3V1-87500-0\u003c\/td\u003e\n\u003ctd\u003e209cc; verify exact model and year\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\u003eAftermarket outboard maintenance service kit with water-pump impeller components\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eGasoline-fueled 4-stroke outboard motors\u003c\/dd\u003e\n\u003cdt\u003eNominal Engine Range\u003c\/dt\u003e\n\u003cdd\u003e6–9.9 HP applications listed above; confirm exact fitment before purchase\u003c\/dd\u003e\n\u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eRubber\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation; follow the engine manufacturer's service procedures\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 — replaces Mercury 47-8037481 and Tohatsu 3B2-65021-1\u003c\/li\u003e\n\u003cli\u003e1 × Cotter pin — replaces Mercury 951403-0310\u003c\/li\u003e\n\u003cli\u003e1 × Pin key — replaces Mercury 9521811 and Tohatsu 3B2-65022-0\u003c\/li\u003e\n\u003cli\u003e1 × Pin — replaces Mercury 951503-0318\u003c\/li\u003e\n\u003cli\u003e1 × Thermostat — replaces Mercury 8M0119207 and Tohatsu 3NV-01030-0\u003c\/li\u003e\n\u003cli\u003e1 × Thermostat gasket — replaces Mercury 27-8M0214960 and Tohatsu 346-01032-0\u003c\/li\u003e\n\u003cli\u003e1 × Fuel filter — replaces Mercury 35-8M0157133 and Tohatsu 369-02230-0\u003c\/li\u003e\n\u003cli\u003e1 × Drain gasket — replaces Mercury 12-895146 and Tohatsu 3R3-07406-0\u003c\/li\u003e\n\u003cli\u003e2 × Drain gaskets — replaces Mercury 8M0075255 and Tohatsu 332600060\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eTurn the engine off, place it in neutral, and disconnect the battery before beginning service.\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 cover to access the impeller.\u003c\/li\u003e\n\u003cli\u003eRecord the original impeller-vane direction and retain the original key as a reference before removal.\u003c\/li\u003e\n\u003cli\u003eClean debris and corrosion from the housing interior, wear plate, and related sealing surfaces.\u003c\/li\u003e\n\u003cli\u003eInstall the new key and impeller, rotating the impeller in the correct direction so the vanes seat without damage.\u003c\/li\u003e\n\u003cli\u003eReplace the applicable gaskets and reassemble the pump housing. Tighten fasteners to the manufacturer's specifications.\u003c\/li\u003e\n\u003cli\u003eReplace the thermostat and thermostat gasket if required for the applicable engine service.\u003c\/li\u003e\n\u003cli\u003eReinstall the lower unit, reconnect the battery, and test the engine in water. Confirm a steady tell-tale stream and normal operating temperature.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this kit fits my motor?\u003c\/summary\u003e\u003cp\u003eVerify the engine brand, model, horsepower, 4-stroke configuration, year, serial number, gearcase type, and the original component numbers. Mercury and Mariner applications listed here require particular attention to the 2018-and-newer range and serial number 0R042475 or above. Do not rely on horsepower alone.\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, elevated operating temperature, or reduced engine performance. Cracked, brittle, deformed, or missing impeller vanes also indicate that service is required.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the water-pump impeller be replaced?\u003c\/summary\u003e\u003cp\u003eInspect the impeller during scheduled maintenance and replace it when the manufacturer's service interval or its condition requires. Frequent operation in sandy, silty, or saltwater conditions may require more frequent inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eMy engine still overheats after installing the kit. What should I check?\u003c\/summary\u003e\u003cp\u003eCheck the impeller installation, key, pump housing, wear plate, gaskets, water-intake passages, cooling-water passages, tell-tale outlet, thermostat, and temperature-sensor system. If the cause is not apparent, have the engine inspected by a qualified marine technician.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy does the kit include a fuel filter and thermostat?\u003c\/summary\u003e\u003cp\u003eThe listed product contents combine water-pump service components with other routine maintenance components. Confirm that each included component matches the service requirements of your specific engine before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part or aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement kit, not an original-equipment-manufacturer component. The OEM and manufacturer numbers shown are reference numbers for identification and cross-reference purposes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the shipping speed and cost?\u003c\/summary\u003e\u003cp\u003eShipping availability, delivery estimates, and cost are shown at checkout and may vary by destination and service level.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eWarranty coverage and return eligibility are governed by the current store policies. Review the applicable policy before purchase and contact support if assistance is needed.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the engine model, year, serial number, stroke, gearcase, and original part references before purchase.\u003c\/li\u003e\n\u003cli\u003eCompare the supplied parts with the original components before installation. Do not install a component that differs in size, design, or application.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement kit and is not an original equipment manufacturer product.\u003c\/li\u003e\n\u003cli\u003eFollow the engine manufacturer's service instructions and torque specifications. Professional installation is recommended when lower-unit or cooling-system service is unfamiliar.\u003c\/li\u003e\n\u003cli\u003eNever operate the engine without adequate cooling-water supply, and stop immediately if overheating or an abnormal tell-tale stream occurs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts selected for dependable service in real-world operating conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are provided at checkout for the destination and service selected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We work with manufacturing partners to provide practical replacement solutions for marine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723985719611,"sku":"23KM772","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_8-99_HP_Carb_209cc_8M0120837_3V1-87500-0_-_JLM_MARINE-8290128.jpg?v=1763039453"}],"url":"https:\/\/seasierra.com\/collections\/tohatsu-4-stroke-8-9-9hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}