{"title":"Tohatsu 2.5HP 2-Stroke Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page focuses on Tohatsu 2‑Stroke 2.5HP outboard engines and helps you find compatible parts and service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse our main Tohatsu collection. Scroll to the bottom of the page to start browsing parts for this engine, and on the collection pages use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block; margin-top:8px; padding:10px 14px; background:#0d6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Tohatsu Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 2.5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the serial\/nameplate on the transom clamp bracket and the identification labels under the top cowl. Record the model and serial number.\u003c\/li\u003e\n    \u003cli\u003eModel code examples for this platform include M 2.5A2 with shaft suffixes (S = short, L = long). The suffix helps match driveshaft length–specific parts.\u003c\/li\u003e\n    \u003cli\u003eThis 2‑Stroke series uses premix fuel (no separate engine oil reservoir). Look for an integral fuel tank and manual starter to distinguish it from larger or 4‑Stroke models.\u003c\/li\u003e\n    \u003cli\u003eConfirm features such as manual start, tiller control, and integrated 1.4 L tank to ensure you’re viewing the correct parts group.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003eTohatsu 2.5HP 2‑Stroke Platform\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSingle‑cylinder, carbureted 2‑Stroke, manual start; displacement approx. 74.6 cc; integral fuel tank.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eM 2.5A2 (S\/L shaft). Verify model\/serial on the clamp bracket plate.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eVery light and portable; simple fuel system; easy to service; ideal for dinghies and small inflatables.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePremix 50:1 with NMMA TC‑W3 2‑stroke oil (25:1 during break‑in). Typical spark plugs NGK BP6HS‑10\/BPR6HS‑10. Lower unit oil capacity ~90 mL. Always confirm parts by model\/serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines. Always follow the official Tohatsu service manual for your exact model and operating conditions.\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 #e5e7eb; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePremix fuel\/oil (TC‑W3)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEach refuel (25:1 for break‑in, then 50:1)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eUse fresh unleaded fuel; add 2‑stroke marine oil to the correct ratio.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect 50 hrs\/3 mo; replace annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eTypical type NGK BP6HS‑10\/BPR6HS‑10; set gap per spec.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eFuel filter(s)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCheck each season; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eClean\/replace tank screen and inline filters; keep water out of fuel.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 2–3 seasons or 200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eReplace sooner if weak tell‑tale, overheating, or sandy\/silty use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eFirst 10 hrs; then every season\/100 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eRefill until air purged; inspect for water (milky) or metal debris.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eLower unit seal service\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eAs needed (water found in gear oil)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eIf gear oil is milky, plan a seal kit and pressure test.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-lower-unit-seal-kits\"\u003eTohatsu Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eAnodes (sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect 50 hrs\/season; replace when 1\/3 gone\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eNever paint or grease anodes; check more often in salt\/brackish water.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePropeller \u0026amp; shear pin\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect often; replace if bent\/damaged\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCarry a spare shear pin and split pin; verify prop pitch for load.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px; color:#6b7280; margin-top:6px;\"\u003e*Intervals vary by usage and environment; inspect more frequently for commercial, high‑silt, or heavy saltwater operation.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark plug\u003c\/a\u003e and \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\u003ePropellers \u0026amp; Hardware: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/propeller-guards\"\u003ePropeller Guards\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;\"\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 #e5e7eb; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWeak tell‑tale or overheating\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect intake screen for blockage; verify impeller condition; confirm vented fuel cap for proper flow; flush after salt use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWater pump kit, intake screen, gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eUse fresh fuel at correct mix; check choke use when cold; inspect\/replace spark plug; check fuel filter and air leaks.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plug, fuel filter, fuel line, carb gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eConfirm tank vent open; check for fouled prop or bent blades; verify shear pin; inspect fuel quality and filter.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePropeller, shear pin, fuel filter, spark plug\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eConfirm correct 50:1 ratio after break‑in; drain old fuel; ensure proper plug heat range.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plug, fuel\/oil mix supplies\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck oil level\/condition; look for water intrusion (milky); inspect prop strikes.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGear oil, lower unit seal kit, bearings\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;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable across years or similar 2.5HP platforms?\u003c\/summary\u003e\n    \u003cp\u003eMany fast‑wear items (impellers, plugs, anodes) carry over within the same model generation (e.g., M 2.5A2). Always confirm by model\/serial and shaft length to avoid mismatches.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the water pump impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs a rule, every 2–3 seasons or ~200 hours. Replace sooner if the tell‑tale weakens, the engine overheats, or after heavy sand\/silt use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eChange at 10 hours for the initial service, then every 100 hours or at least once per season. Inspect for water contamination (milky color) or metal debris.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full model code (e.g., M 2.5A2), serial number, shaft length (S\/L), and the exact part name. For propellers, include current prop size and your boat\/load details.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e7eb;\"\u003e\n  \u003cp\u003eReady to find parts? Browse our main Tohatsu collection by horsepower, year, and model to match components to your engine.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block; margin-top:8px; padding:10px 14px; background:#0d6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Tohatsu Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px; color:#6b7280; font-size:12px;\"\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":"thermostat-kit-122-f-50-c-fits-tohatsu-nissan-2-50-hp-replaces-345-01030-0-346-01030-0","title":"Thermostat Kit, 122°F (50°C) – Fits Selected Tohatsu and Nissan 2–50 HP Outboards","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ethermostat kit\u003c\/strong\u003e is designed for selected Tohatsu and Nissan outboard engines using a 122°F (50°C) thermostat. The listed applications cover selected 2–50 HP models, including M, MD, MF, MFS, NS, and NSD series engines. Because application can vary by model, year, serial range, and cooling-system configuration, confirm the engine model and the original thermostat part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThe kit is listed as a replacement for Tohatsu references \u003cstrong\u003e345-01030-0\u003c\/strong\u003e, \u003cstrong\u003e345010300M\u003c\/strong\u003e, \u003cstrong\u003e345010301M\u003c\/strong\u003e, \u003cstrong\u003e346-01030-0\u003c\/strong\u003e, \u003cstrong\u003e346-01030-1\u003c\/strong\u003e, \u003cstrong\u003e350-01030-1\u003c\/strong\u003e, and \u003cstrong\u003e3H6-01030-0\u003c\/strong\u003e. These numbers are manufacturer or interchange references, not the seller's internal product identifier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement thermostat service kit for selected Tohatsu and Nissan outboards.\u003c\/li\u003e\n\u003cli\u003e122°F (50°C) thermostat opening-temperature rating.\u003c\/li\u003e\n\u003cli\u003eIncludes the thermostat, housing gasket, and two thermostat seals as listed.\u003c\/li\u003e\n\u003cli\u003eVerify the original part number and complete engine identification before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references to compare the thermostat with the part removed from your engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e345010301M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e346-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e346-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe applications below are the listed model references for this thermostat kit. Model names alone may not identify every production variant; check the model code, year or serial range where applicable, stroke type, and OEM part number together.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke \/ Configuration\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS3.5C\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMF6\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM8B\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.8B\u003c\/td\u003e\n\u003ctd\u003e9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM15D2\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM18E2\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eConfirm the original part number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM25C3\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM30A4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM40C\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMD40A, MD40B, MD40B2\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMD50A, MD50B, MD50B2\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS25C3\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS30A4\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS40C\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003ctd\u003eYear-specific application as listed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSD40B, NSD40B2\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNSD50B, NSD50B2\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003eTLDI direct-injection 2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010–2014\u003c\/td\u003e\n\u003ctd\u003e345010300M\u003c\/td\u003e\n\u003ctd\u003eVerify model and serial range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eThermostat kit with housing gasket and seals\u003c\/dd\u003e\n\u003cdt\u003eTemperature Rating\u003c\/dt\u003e\n\u003cdd\u003e122°F (50°C) opening temperature\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation in the existing thermostat housing\u003c\/dd\u003e\n\u003cdt\u003eHousing Finish\u003c\/dt\u003e\n\u003cdd\u003eSilver\/metallic as listed\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Thermostat\u003c\/li\u003e\n\u003cli\u003e1 × Thermostat housing gasket\u003c\/li\u003e\n\u003cli\u003e2 × Thermostat seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eAllow the engine to cool completely and follow the service manual's safety procedures.\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery if required by the engine manufacturer's service procedure.\u003c\/li\u003e\n\u003cli\u003eLocate the thermostat housing and remove the cover fasteners.\u003c\/li\u003e\n\u003cli\u003eRemove the old thermostat, gasket, and seals, noting their orientation.\u003c\/li\u003e\n\u003cli\u003eClean the mating surfaces carefully without damaging the housing or cover.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement thermostat, seals, and gasket in the correct orientation.\u003c\/li\u003e\n\u003cli\u003eReinstall the housing cover and tighten the fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eRestore the cooling system as required for the engine, start it, and check for leaks and proper temperature control.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my thermostat is failing?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include overheating, running below the expected operating temperature, inconsistent temperature behavior, or restricted cooling-system flow. Diagnose the cause before replacing the thermostat.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does the 122°F (50°C) rating mean?\u003c\/summary\u003e\u003cp\u003eIt identifies the thermostat's listed opening temperature. The thermostat begins opening near this temperature to regulate cooling-water flow through the engine according to the engine's design.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a complete kit?\u003c\/summary\u003e\u003cp\u003eThe listed package contains one thermostat, one thermostat housing gasket, and two thermostat seals. Confirm that these components match the arrangement on your engine before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit a model year not shown?\u003c\/summary\u003e\u003cp\u003eDo not rely on horsepower alone. Compare the exact model, year or serial range, stroke\/configuration, and original OEM part number with the information above and the engine service documentation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should a thermostat be replaced?\u003c\/summary\u003e\u003cp\u003eReplace it when testing identifies a fault, when it is damaged or contaminated, or during cooling-system service if the manufacturer's maintenance procedure calls for replacement. Follow the engine service manual for testing and maintenance intervals.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for an aftermarket replacement kit. The OEM numbers shown are reference numbers used for application comparison.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the shipping speed and cost?\u003c\/summary\u003e\u003cp\u003eAvailable shipping methods, delivery estimates, and shipping charges are shown at checkout and vary by destination and service level.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eWarranty and return terms are governed by the seller's current policies. Review the applicable policy before purchase and contact support if the delivered item does not match the listing or arrives damaged.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the complete engine model, year or serial range, stroke\/configuration, and original part number before ordering.\u003c\/li\u003e\n\u003cli\u003eCompare the supplied parts with the removed components before installation.\u003c\/li\u003e\n\u003cli\u003eUse the manufacturer's service manual for torque values, cooling-system procedures, testing, and safety requirements.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when the correct procedure or engine application is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — Marine replacement parts selected for fit, function, and service use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are provided at checkout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Competitive replacement-part pricing with application information to support part selection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718270488891,"sku":"GH-TH23616-T","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/GH-TH23616-T.png?v=1762958706"},{"product_id":"thermostat-kit-fits-tohatsu-nissan-2-50-hp-outboards-replaces-346-01030-345-01030","title":"Thermostat Kit, 50°C (122°F) – Fits Tohatsu\/Nissan 2–50 HP Outboards","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e50°C (122°F) thermostat kit\u003c\/strong\u003e is an aftermarket replacement for selected Tohatsu and Nissan outboard motors. It is intended to help the cooling system maintain the engine's specified operating temperature and includes the service components needed for a thermostat replacement.\u003c\/p\u003e\n\u003cp\u003eThe kit is associated with Tohatsu\/Nissan thermostat references including \u003cstrong\u003e345-01030-0\u003c\/strong\u003e, \u003cstrong\u003e345-01030-1\u003c\/strong\u003e, \u003cstrong\u003e346-01030-0\u003c\/strong\u003e, \u003cstrong\u003e346-01030-1\u003c\/strong\u003e, \u003cstrong\u003e350-01030-1\u003c\/strong\u003e, and \u003cstrong\u003e3H6-01030-0\u003c\/strong\u003e. Reference numbers are provided for identification; always confirm the exact model, year, stroke, and serial-number range before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e50°C (122°F) thermostat rating.\u003c\/li\u003e\n\u003cli\u003eKit format for thermostat service.\u003c\/li\u003e\n\u003cli\u003eIncludes a thermostat, housing gasket, and thermostat seals.\u003c\/li\u003e\n\u003cli\u003eFor selected Tohatsu and Nissan 2-stroke and 4-stroke outboards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following manufacturer reference numbers when comparing your original part and engine parts diagram.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eManufacturer Reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e345-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e345-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e346-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e346-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eVerified Engine Compatibility Examples\u003c\/h2\u003e\n\u003cp\u003eThe catalog relationships below keep the model, horsepower, stroke, and year conditions together. They are examples of documented applications, not a substitute for checking the complete engine identification and serial-number information.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Verified Engine Compatibility Examples\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or Model Group\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear Evidence\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM6 \/ M8 \/ M9.8B\u003c\/td\u003e\n\u003ctd\u003e6–9.8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2016 catalog examples\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9 \/ 15D2 \/ 18E2 \/ MX18E2\u003c\/td\u003e\n\u003ctd\u003e9.9–18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2015 catalog examples\u003c\/td\u003e\n\u003ctd\u003e350-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM25\/30H\/JET\u003c\/td\u003e\n\u003ctd\u003e25–30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2025–2026 catalog examples\u003c\/td\u003e\n\u003ctd\u003e345-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMX25\/30H\u003c\/td\u003e\n\u003ctd\u003e25–30\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2025–2026 catalog examples\u003c\/td\u003e\n\u003ctd\u003e345-01030-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS2 \/ MFS2.5 \/ MFS3.5B\u003c\/td\u003e\n\u003ctd\u003e2–3.5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2017 catalog examples\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eMFS4 \/ MFS5 \/ MFS6C\u003c\/td\u003e\n\u003ctd\u003e4–6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2013–2017 catalog examples\u003c\/td\u003e\n\u003ctd\u003e3H6-01030-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eAdditional applications may exist under the reference numbers above. Model names, production years, and serial-number ranges can vary by market and engine revision, so verify against the engine's identification plate and the applicable parts diagram.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eThermostat kit\u003c\/dd\u003e\n\u003cdt\u003eThermostat Rating\u003c\/dt\u003e\n\u003cdd\u003e50°C (122°F)\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Tohatsu and Nissan 2-stroke and 4-stroke outboard motors\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation using the original thermostat housing\u003c\/dd\u003e\n\u003cdt\u003eIncluded Components\u003c\/dt\u003e\n\u003cdd\u003eThermostat, housing gasket, and thermostat seals\u003c\/dd\u003e\n\u003cdt\u003eProduct Status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement; not an OEM-branded component\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1x\u003c\/span\u003e 50°C (122°F) thermostat\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1x\u003c\/span\u003e thermostat housing gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2x\u003c\/span\u003e thermostat seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eAllow the engine to cool completely before beginning work. Follow the engine manufacturer's safety procedures.\u003c\/li\u003e\n\u003cli\u003eLocate the thermostat housing and place a suitable drain pan below the work area to collect water or coolant released during disassembly.\u003c\/li\u003e\n\u003cli\u003eRemove the housing cover carefully and note the orientation of the old thermostat, gasket, and seals.\u003c\/li\u003e\n\u003cli\u003eClean the mating surfaces and remove old gasket material without damaging the housing or cover.\u003c\/li\u003e\n\u003cli\u003eInstall the new thermostat in the same orientation as the original, then fit the supplied gasket and seals.\u003c\/li\u003e\n\u003cli\u003eReinstall the housing cover and tighten the fasteners evenly to the manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eRestore the cooling system as required for the engine, run the outboard according to the service instructions, and check for leaks and normal water flow.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eDo not substitute automotive coolant procedures for the outboard manufacturer's service procedure. Use the correct fluid and bleeding or flushing method for your specific engine.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are common signs of a failed thermostat?\u003c\/summary\u003e\n\u003cp\u003ePossible symptoms include overheating, unusually low operating temperature, inconsistent temperature behavior, or poor cooling-system performance. Blocked water passages, a damaged water pump, or other cooling-system faults can cause similar symptoms.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat temperature is this thermostat rated for?\u003c\/summary\u003e\n\u003cp\u003eThis kit is listed with a 50°C (122°F) thermostat rating.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n\u003cp\u003eCompare your original manufacturer reference with the Part Number Matrix, then verify the engine brand, exact model, horsepower, stroke, production year, and serial-number range in the applicable parts diagram. Do not rely on horsepower alone.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the kit include the service gaskets and seals?\u003c\/summary\u003e\n\u003cp\u003eYes. The listed kit contents are one thermostat, one thermostat housing gasket, and two thermostat seals.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n\u003cp\u003eNo. This is an aftermarket replacement kit intended for the documented manufacturer reference numbers and applications listed on this page.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs there a fixed replacement interval?\u003c\/summary\u003e\n\u003cp\u003eFollow the maintenance schedule for your specific outboard. Inspect the thermostat when diagnosing cooling-system problems or when the thermostat housing is opened for related service.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWork only on a cool engine and follow the manufacturer's service and safety instructions.\u003c\/li\u003e\n\u003cli\u003eConfirm the exact model, year, stroke, and serial-number range before purchase.\u003c\/li\u003e\n\u003cli\u003eCompare the supplied part and sealing components with the original before installation.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when the correct procedure or torque specifications are unavailable.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM-branded component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMarine replacement parts selected for documented applications and practical service needs.\u003c\/li\u003e\n\u003cli\u003eClear reference-number and fitment information to help support accurate part selection.\u003c\/li\u003e\n\u003cli\u003eCustomer support is available for installation and fitment questions when complete engine details are provided.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718270521659,"sku":"QM-345-01030","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/QM-345-01030.png?v=1762958708"},{"product_id":"water-pump-impeller-service-kit-fits-mercury-tohatsu-nissan-2-2-3-3-hp-replaces-47-952892-309-65021-1","title":"Water Pump Impeller Service Kit Without Wear Plate – Fits Mercury\/Mariner 2–3.3 HP 2-Stroke Outboards (Replaces 47-95289, 47-95289-1, 47-952891, 47-95289-2, 47-952892)","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 service kit without wear plate\u003c\/strong\u003e is designed for selected Mercury and Mariner 2-stroke outboards from 2 to 3.3 HP. It replaces the original impeller identified by the Mercury references listed below and helps restore proper water-pump circulation when the original impeller is worn, cracked, deformed, or missing blades.\u003c\/p\u003e\n\u003cp\u003eThe company catalog identifies this product as a water pump impeller kit supplied without the wear plate. It is an aftermarket replacement, not an OEM component. Always compare the original impeller, engine model, and serial number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApplication-specific replacement for selected Mercury\/Mariner small outboards.\u003c\/li\u003e\n  \u003cli\u003eFits the listed horsepower, model, and serial-number ranges only.\u003c\/li\u003e\n  \u003cli\u003eService-kit configuration supplied without the wear plate.\u003c\/li\u003e\n  \u003cli\u003eDesigned for routine water-pump maintenance and cooling-system service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number References\u003c\/h2\u003e\n\u003cp\u003eThe following Mercury references are identified for this impeller application. Reference numbers are provided for identification and cross-reference purposes only.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eManufacturer Part 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\u003e47-95289\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-95289-1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-952891\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-95289-2\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-952892\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\u003eFitment depends on the complete model and serial-number range. Confirm all conditions below before purchase; horsepower alone is not sufficient to establish compatibility.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Mercury and Mariner Engine 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\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\u003e2 HP\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 8075603 and up\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eAlso listed for model 7002201YK, 1991.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2 HP\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0T894577 and up\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2 HP\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0T884302 through 0T894576\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2.2M\u003c\/td\u003e\n\u003ctd\u003e2.2\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 8075603 and up\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eApplication-specific fitment.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2.5 HP\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0A855097 through 0G710612\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2.5 HP\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0T894577 and up\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2.5 HP\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0P401000 and up\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2.5 HP\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0P017000 through 0P400999\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2.5 HP\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0G710613 through 0T894576\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3 HP\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0A855097 through 0G710612\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3.3 HP Non-Shift\u003c\/td\u003e\n\u003ctd\u003e3.3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0D901217 through 0G710612\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eNon-shift gear-housing application.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3.3 HP\u003c\/td\u003e\n\u003ctd\u003e3.3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0T894577 and up\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3.3 HP\u003c\/td\u003e\n\u003ctd\u003e3.3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0P401000 and up\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3.3 HP\u003c\/td\u003e\n\u003ctd\u003e3.3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0P017000 through 0P400999\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3.3 HP\u003c\/td\u003e\n\u003ctd\u003e3.3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eSerial 0G710613 through 0T894576\u003c\/td\u003e\n\u003ctd\u003e47-952892\u003c\/td\u003e\n\u003ctd\u003eVerify the serial range on the engine.\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 service kit\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Mercury\/Mariner 2-stroke outboards from 2 to 3.3 HP\u003c\/dd\u003e\n  \u003cdt\u003eConfiguration\u003c\/dt\u003e\n  \u003cdd\u003eSupplied without wear plate\u003c\/dd\u003e\n  \u003cdt\u003eReplacement Type\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eDirect replacement when the engine and serial-number conditions match\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 service kit without wear plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWear plates, housings, gaskets, keys, pins, and other water-pump components are not included unless specifically shown or stated in the package contents for the purchased item.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the engine brand, model, horsepower, stroke, and serial number before beginning service.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery where applicable and follow the engine manufacturer’s safety procedures.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the service manual for your specific outboard.\u003c\/li\u003e\n  \u003cli\u003eRemove the water-pump housing and take out the old impeller.\u003c\/li\u003e\n  \u003cli\u003eInspect the housing, wear plate, key, seals, and water-tube connection for damage or excessive wear. Replace separately as required.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement impeller in the correct direction and reassemble the pump according to the manufacturer’s service instructions.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, confirming correct alignment of the driveshaft and water tube.\u003c\/li\u003e\n  \u003cli\u003eRun the engine in a suitable water supply and confirm a steady 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\u003eWhat symptoms indicate a worn water-pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eA weak or missing tell-tale stream, overheating, an overheating warning, or visible cracks, deformation, or missing blades on the old impeller can indicate that service is needed. Inspect the complete water-pump assembly before replacing only the impeller.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit an engine that is not listed?\u003c\/summary\u003e\n  \u003cp\u003eDo not assume compatibility from horsepower alone. Use this part only when your Mercury or Mariner model and serial-number range match the compatibility information above and the replacement impeller matches the original part.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this kit include the wear plate?\u003c\/summary\u003e\n  \u003cp\u003eNo. The company product description identifies this configuration as a water pump impeller kit without the wear plate. Inspect your existing wear plate and replace it separately if it is worn or damaged.\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. The listed Mercury numbers are manufacturer reference numbers used to help identify the correct application.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this product fit Tohatsu, Nissan, or Johnson\/Evinrude engines?\u003c\/summary\u003e\n  \u003cp\u003eThis product page is for the Mercury\/Mariner application and serial ranges listed above. Do not use the Tohatsu, Nissan, or Johnson\/Evinrude references from other impeller products to establish fitment for this item.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm the exact engine model and serial number before ordering.\u003c\/li\u003e\n  \u003cli\u003eCompare the replacement impeller with the original part before installation.\u003c\/li\u003e\n  \u003cli\u003eDo not operate an outboard with inadequate cooling-water flow.\u003c\/li\u003e\n  \u003cli\u003eFollow the manufacturer’s service-manual procedures and torque specifications.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are not familiar 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 — Parts for routine outboard maintenance and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Compatibility information is organized by engine model and serial-number range where available.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAftermarket Value\u003c\/strong\u003e — Replacement solutions for maintaining marine cooling systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723790324027,"sku":"24KM025-QM","price":19.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM025-QM.png?v=1763031856"},{"product_id":"carburetor-assembly-fits-tohatsu-nissan-2-5hp-3-5hp-2-stroke-and-mercury-2hp-2-2hp-2-5hp-3hp-3-3hp-replaces-3f0-03100-4-823040a1","title":"Carburetor Assembly for Tohatsu \u0026 Nissan 2.5HP and 3.5HP 2-Stroke Outboards; Mercury \u0026 Mariner 2HP–3.3HP 2-Stroke Replacement","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e is designed for selected Tohatsu and Nissan 2-stroke outboard motors rated at 2.5HP and 3.5HP, including listed M2.5, M3.5, NS2.5, and NS3.5 applications from the applicable model years. It also fits selected Mercury and Mariner 1-cylinder 2-stroke engines in the 2HP, 2.2HP, 2.5HP, 3HP, and 3.3HP ranges when the engine's original part number and serial-number range match the information below.\u003c\/p\u003e\n\u003cp\u003eThe assembly is listed as a replacement for several Tohatsu, Nissan, and Mercury references, including \u003cstrong\u003e3F0-03100-4\u003c\/strong\u003e, \u003cstrong\u003e3D5-03100-5\u003c\/strong\u003e, and \u003cstrong\u003e823040A1\u003c\/strong\u003e. Always compare the original carburetor, part number, model, year, and serial number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete replacement carburetor assembly for listed applications.\u003c\/li\u003e\n  \u003cli\u003eDirect-replacement design for compatible engines.\u003c\/li\u003e\n  \u003cli\u003eSilver zinc-alloy housing with marine-use corrosion-resistant construction.\u003c\/li\u003e\n  \u003cli\u003eOne carburetor assembly is included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references to compare the replacement with the carburetor currently installed on your engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0031003M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0031002M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0031001M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu \/ Nissan\u003c\/td\u003e\n\u003ctd\u003e3F0031000M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e823040A1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e823040A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e823040A4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e823040A5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e823040T06\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0171810\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e3303-8231752\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e3303-815070\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 depends on the complete model, year, stroke, original part number, and—where specified—the engine serial number. The tables below summarize the listed applications; they are not a substitute for checking the identification plate and original carburetor.\u003c\/p\u003e\n\n\u003ch3\u003eTohatsu 2-Stroke Models\u003c\/h3\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Tohatsu 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\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002 and earlier\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002 and earlier\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM2.5A2\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eNissan 2-Stroke Models\u003c\/h3\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Nissan 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\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002 and earlier\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003–2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS2.5A2\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002–2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eMercury \/ Mariner 2-Stroke Models\u003c\/h3\u003e\n\u003cp\u003eFor Mercury and Mariner applications, verify both the horsepower rating and the complete serial-number range before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Mercury and Mariner Engine Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\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\u003eSerial-Number Condition\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\u003e2.0–2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e823040A1\u003c\/td\u003e\n\u003ctd\u003eVerify the original part number and engine serial number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e823040A1\u003c\/td\u003e\n\u003ctd\u003e0A855097 to 0G710612\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e3.3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e823040A1\u003c\/td\u003e\n\u003ctd\u003e0D901217 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 Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eCarburetor assembly\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement for compatible applications\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\u003eZinc alloy\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\u003c\/dd\u003e\n  \u003cdt\u003eConstruction\u003c\/dt\u003e\n\u003cdd\u003eMarine-use corrosion-resistant construction\u003c\/dd\u003e\n  \u003cdt\u003eProduct Status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement; not an OEM component\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Carburetor assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety first:\u003c\/strong\u003e Turn the engine off, allow it to cool, shut off the fuel supply, and disconnect the battery where applicable.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecord connections:\u003c\/strong\u003e Before removal, note the routing and positions of the fuel lines, throttle linkage, and any other connected components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove the old carburetor:\u003c\/strong\u003e Disconnect the fuel lines and linkages, then remove the mounting hardware and old carburetor.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrepare the mounting surface:\u003c\/strong\u003e Clean the intake-manifold surface and install a suitable new gasket if required by the engine service manual.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall the replacement:\u003c\/strong\u003e Position the carburetor and tighten the mounting hardware evenly to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReconnect components:\u003c\/strong\u003e Reattach the fuel lines and throttle linkages to their original positions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCheck for leaks:\u003c\/strong\u003e Restore the fuel supply and inspect all connections before starting the engine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTest the engine:\u003c\/strong\u003e Start the engine in a safe, well-ventilated area and adjust idle settings only as directed by the applicable service manual.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n  \u003cp\u003eCompare the original carburetor and its part number with the Part Number Matrix. Confirm the exact engine brand, model, horsepower, 2-stroke configuration, year, and—when listed—the serial-number range. Physical comparison is also recommended before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a failing carburetor?\u003c\/summary\u003e\n  \u003cp\u003ePossible symptoms include difficult starting, rough idle, stalling at low speed, black exhaust smoke, poor acceleration, or increased fuel consumption. These symptoms can also result from fuel-system or ignition problems, so diagnose the engine before replacing parts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill adjustment be needed after installation?\u003c\/summary\u003e\n  \u003cp\u003eThis is intended as a direct replacement for compatible applications, but idle speed or mixture adjustment may be required depending on the engine and installation. Follow the engine manufacturer's service instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow should the carburetor be maintained?\u003c\/summary\u003e\n  \u003cp\u003eUse clean, fresh fuel and service the fuel filter regularly. Before extended storage, follow the engine manufacturer's storage procedure, which may include stabilizing the fuel and draining the carburetor bowl to help prevent gum and varnish deposits.\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 intended for the applications and reference numbers shown above.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if my original part looks different?\u003c\/summary\u003e\n  \u003cp\u003eDo not install the replacement if the mounting points, linkage arrangement, fuel connections, or reference number do not match. Recheck the complete engine identification and consult the applicable service manual.\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, horsepower, stroke, serial number, and original part number before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not rely on horsepower alone to confirm compatibility.\u003c\/li\u003e\n  \u003cli\u003eFuel-system work should be performed with the engine cool and away from ignition sources.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when you are not familiar with marine engine fuel systems.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — Marine replacement parts selected for dependable real-world service.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Standard delivery options are available to most regions; availability and transit time are shown at checkout.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Practical replacement parts at competitive prices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723790356795,"sku":"84-6K7M-NLIS","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/84-6K7M-NLIS.png?v=1763031857"},{"product_id":"carburetor-repair-kit-fits-tohatsu-nissan-2-5-3-5hp-2-stroke-replaces-3f0-87122-1-18-7765-11502m","title":"Carburetor Repair Seal Kit for Tohatsu\/Nissan\/Mercury Mariner 2.5–3.5 HP 2-Stroke Outboards","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003ecarburetor repair seal kit\u003c\/strong\u003e is designed for select Tohatsu and Nissan 2-stroke outboard engines rated at 2.5 HP and 3.5 HP, as well as select Mercury Mariner 2-stroke 2.5 HP and 3.5 HP outboards. It is intended to renew the carburetor sealing components and help restore reliable sealing during carburetor service.\u003c\/p\u003e\n  \u003cp\u003eFor Tohatsu and Nissan applications, the listed reference numbers are 3F0-87122-0, 3F0-87122-1, 3F0-87122-2, 3F0871220M, 3F0871221M, and 3F0871222M. For Mercury Mariner applications, the listed reference numbers are 41859M and 92520M. Confirm the exact engine model and reference number before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eRepair seal kit for small two-stroke outboard carburetors.\u003c\/li\u003e\n    \u003cli\u003eDesigned for the listed Tohatsu, Nissan, Mercury, and Mariner applications.\u003c\/li\u003e\n    \u003cli\u003eUseful when servicing a carburetor with worn, damaged, or deteriorated sealing components.\u003c\/li\u003e\n    \u003cli\u003eSuitable for installation by an experienced DIY mechanic or marine service professional.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eReference Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse the following manufacturer reference numbers to help confirm application compatibility. These numbers identify the listed application references and should be matched to your engine before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Reference Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eReference Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-87122-0\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-87122-1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-87122-2\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0871220M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0871221M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0871222M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Mariner\u003c\/td\u003e\n\u003ctd\u003e41859M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Mariner\u003c\/td\u003e\n\u003ctd\u003e92520M\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 confirmed application information identifies the following model families and engine conditions. Year, serial-number, shaft-length, and other production-range information was not provided, so verify the model designation and reference number against your engine 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\u003eReference Numbers\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eM 2.5A2\u003c\/td\u003e\n          \u003ctd\u003e2.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eM 3.5A2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eM 3.5B\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eM 3.5B2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 2.5A2\u003c\/td\u003e\n          \u003ctd\u003e2.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 3.5A2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 3.5B\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 3.5B2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n          \u003ctd\u003eApplication-specific 2.5 HP and 3.5 HP models\u003c\/td\u003e\n          \u003ctd\u003e2.5–3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e41859M, 92520M\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\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSmall 2-stroke marine outboard carburetor service\u003c\/dd\u003e\n    \u003cdt\u003eRated Engine Range\u003c\/dt\u003e\n    \u003cdd\u003e2.5 HP and 3.5 HP applications\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDIY or professional installation\u003c\/dd\u003e\n    \u003cdt\u003eFuel System\u003c\/dt\u003e\n    \u003cdd\u003eGasoline outboard fuel systems\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cp\u003eThis product is a carburetor repair seal kit. The supplied package contents are the sealing components specified for the applicable carburetor service. Individual component types and quantities were not specified in the product record; compare the package and application with your original parts before installation.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eShut off the fuel supply and work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the fuel line and carefully remove the carburetor, noting the position of all hoses, linkages, and fasteners.\u003c\/li\u003e\n    \u003cli\u003eDisassemble the carburetor on a clean work surface and retain reusable hardware in an organized manner.\u003c\/li\u003e\n    \u003cli\u003eClean the reusable metal surfaces with an appropriate carburetor cleaner and allow them to dry fully.\u003c\/li\u003e\n    \u003cli\u003eRemove the old sealing components without scratching the mating surfaces.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement seals in the correct locations and make sure each seal is seated properly.\u003c\/li\u003e\n    \u003cli\u003eReassemble the carburetor according to the service instructions for the specific engine.\u003c\/li\u003e\n    \u003cli\u003eReinstall the carburetor, reconnect all hoses and linkages, and check carefully for fuel leaks 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\u003eHow do I confirm that this seal kit fits my engine?\u003c\/summary\u003e\n    \u003cp\u003eMatch your engine brand, model, horsepower, and 2-stroke configuration to the compatibility information above. Also compare one of the listed reference numbers—3F0-87122-0, 3F0-87122-1, 3F0-87122-2, 3F0871220M, 3F0871221M, 3F0871222M, 41859M, or 92520M—with the number for your original carburetor service part.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat symptoms can indicate worn carburetor seals?\u003c\/summary\u003e\n    \u003cp\u003ePossible symptoms include fuel leakage, air or fuel leaks around the carburetor joints, difficult starting, unstable operation, or poor running after other basic fuel-system checks have been completed. These symptoms can have multiple causes, so inspect the complete carburetor and fuel system.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this product include a replacement float or needle valve?\u003c\/summary\u003e\n    \u003cp\u003eThe product is identified as a carburetor repair seal kit. A float, needle valve, or other non-sealing carburetor components are not specified as included. Do not assume those parts are supplied.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this on a Mercury Mariner 2.5 HP or 3.5 HP outboard?\u003c\/summary\u003e\n    \u003cp\u003eThe company application record lists Mercury Mariner 2-stroke 2.5 HP and 3.5 HP outboards with reference numbers 41859M and 92520M. Verify the exact model and reference number before ordering because year and serial-number coverage was not specified.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs professional installation required?\u003c\/summary\u003e\n    \u003cp\u003eInstallation may be performed by an experienced DIY mechanic or a qualified marine technician. Follow the service information for your engine and check for fuel leaks before operation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is for a replacement carburetor repair seal kit. It is not represented as a complete OEM carburetor assembly. Brand names and reference numbers are used only to identify the intended applications.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eConfirm the engine model, horsepower, stroke, and reference number before purchase.\u003c\/li\u003e\n    \u003cli\u003eDo not install seals that are damaged, contaminated, or visibly different from the parts being replaced.\u003c\/li\u003e\n    \u003cli\u003eUse appropriate ventilation and fire-safety precautions when working with gasoline-powered equipment.\u003c\/li\u003e\n    \u003cli\u003eAfter installation, inspect for fuel leaks before starting and operating the outboard.\u003c\/li\u003e\n    \u003cli\u003eYear, serial-number, shaft-length, package-quantity, weight, and warranty information was not specified for this product and is therefore not claimed here.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine Parts Focus\u003c\/strong\u003e — Practical replacement parts for outboard maintenance and repair.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product descriptions emphasize engine model, horsepower, stroke, and reference-number matching.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eService-Ready Information\u003c\/strong\u003e — Clear installation and verification guidance helps you select the correct replacement part.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723791765819,"sku":"17CR008","price":24.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17CR008-1.jpg?v=1763031891"},{"product_id":"water-pump-impeller-repair-kit-fits-mercury-tohatsu-2-3-5-hp-replaces-16159a2-8m0080264-3ab-87322-0","title":"Water Pump Repair Kit for Mercury 3.3 HP 2-Stroke and Tohatsu MFS2–MFS3.5 4-Stroke Outboards – Replaces 16159A2, 8M0080264 and 3AB-87322-0","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { 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 \u003cstrong\u003eWater Pump Repair Kit\u003c\/strong\u003e is an aftermarket replacement for selected small Mercury and Tohatsu outboard water-pump assemblies. Catalog references identify the Mercury application around 3.3 HP 2-stroke outboards, including shiftable engines, and the Tohatsu application for MFS2, MFS2.5 and MFS3.5B\/C 4-stroke models. Always match the complete OEM part number and engine serial or model information before ordering.\u003c\/p\u003e\n  \u003cp\u003eThe kit is intended to replace water-pump service components associated with Mercury references \u003cstrong\u003e16159A2\u003c\/strong\u003e, \u003cstrong\u003e8M0080264\u003c\/strong\u003e and \u003cstrong\u003e889246A16\u003c\/strong\u003e, together with Tohatsu reference \u003cstrong\u003e3AB-87322-0\u003c\/strong\u003e. The listed numbers are manufacturer or OEM reference numbers only; this product is not an OEM-branded part.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eReplacement water-pump service kit for selected small outboards.\u003c\/li\u003e\n    \u003cli\u003eDesigned for servicing the impeller, wear surfaces and associated gaskets in the applicable pump assembly.\u003c\/li\u003e\n    \u003cli\u003eIncludes a six-blade impeller with a nylon hub.\u003c\/li\u003e\n    \u003cli\u003eConfirm the reference number, engine model, stroke, year and serial range before installation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse the following references to compare the required water-pump repair kit with your original part or service-manual listing.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eManufacturer or OEM Reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mercury Mariner\u003c\/td\u003e\n\u003ctd\u003e16159A2\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mercury Mariner\u003c\/td\u003e\n\u003ctd\u003e47-16159A2\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mercury Mariner\u003c\/td\u003e\n\u003ctd\u003e8M0080264\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mercury Mariner\u003c\/td\u003e\n\u003ctd\u003e47-8M0080264\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mercury Mariner\u003c\/td\u003e\n\u003ctd\u003e889246A16\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury \/ Mercury Mariner\u003c\/td\u003e\n\u003ctd\u003e47-889246A16\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3AB-87322-0\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3AB873220M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-87322-1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0873221M\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. Model, horsepower, stroke and serial conditions must be checked together; a matching horsepower alone does not confirm compatibility.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or Application\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear 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\u003c\/td\u003e\n          \u003ctd\u003e3.3 HP outboard\u003c\/td\u003e\n          \u003ctd\u003e3.3 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e0D901217 through 0G710612\u003c\/td\u003e\n          \u003ctd\u003e8M0080264\u003c\/td\u003e\n          \u003ctd\u003eCatalog occurrence identifies shiftable engines.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e3.3 HP outboard\u003c\/td\u003e\n          \u003ctd\u003e3.3 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e0G710613 through 0T894576\u003c\/td\u003e\n          \u003ctd\u003e8M0080264\u003c\/td\u003e\n          \u003ctd\u003eVerify the exact serial number and pump configuration.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e3.3 HP outboard\u003c\/td\u003e\n          \u003ctd\u003e3.3 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e0T894577 and up\u003c\/td\u003e\n          \u003ctd\u003e8M0080264\u003c\/td\u003e\n          \u003ctd\u003eVerify the exact serial number and pump configuration.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eMFS2 \/ MFS2.5 \/ MFS3.5B\u003c\/td\u003e\n          \u003ctd\u003e2–3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2016–2019 catalog applications\u003c\/td\u003e\n          \u003ctd\u003e3AB-87322-0\u003c\/td\u003e\n          \u003ctd\u003eCheck the model suffix and service-manual listing.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eMFS2 \/ MFS2.5 \/ MFS3.5C\u003c\/td\u003e\n          \u003ctd\u003e2–3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2019–2026 catalog applications\u003c\/td\u003e\n          \u003ctd\u003e3AB-87322-0\u003c\/td\u003e\n          \u003ctd\u003eCheck the model suffix and service-manual listing.\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The catalog references above are application leads, not a substitute for checking the original part. Mercury and Tohatsu\/Nissan model naming, serial breaks and pump designs can vary by production year and market.\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 Mercury and Tohatsu small outboard water-pump assemblies\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDirect replacement service components; professional installation is recommended\u003c\/dd\u003e\n    \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n    \u003cdd\u003eMarine-grade CR neoprene\u003c\/dd\u003e\n    \u003cdt\u003eWear Plate and Liner Material\u003c\/dt\u003e\n    \u003cdd\u003eSS316 stainless steel\u003c\/dd\u003e\n    \u003cdt\u003eImpeller Dimensions\u003c\/dt\u003e\n    \u003cdd\u003eHeight: 14.35 mm (0.56 in); overall diameter: 33.6 mm (1.32 in); hub shaft diameter: 10.4 mm (0.41 in)\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n    \u003cdd\u003e57 g (2.01 oz)\u003c\/dd\u003e\n    \u003cdt\u003eImpeller Design\u003c\/dt\u003e\n    \u003cdd\u003eSix-blade impeller with nylon hub\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 (47-161543)\u003c\/li\u003e\n    \u003cli\u003e1 x Impeller pin (28-16155)\u003c\/li\u003e\n    \u003cli\u003e1 x Housing gasket (27-898101331)\u003c\/li\u003e\n    \u003cli\u003e1 x Wear plate gasket (27-898101332)\u003c\/li\u003e\n    \u003cli\u003e1 x Wear plate (898101371)\u003c\/li\u003e\n    \u003cli\u003e1 x Insert cup (161571)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003ePart numbers in the package list are component or reference numbers and may differ from the package's primary application number. Compare the components with the parts removed from your engine before installation.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eMake sure the engine is stopped, cool and secured. Disconnect the battery where applicable and follow the engine manufacturer's safety instructions.\u003c\/li\u003e\n    \u003cli\u003eRemove the gearcase or lower unit according to the applicable service manual.\u003c\/li\u003e\n    \u003cli\u003eRemove the water-pump housing and note the original impeller-vane direction and component order.\u003c\/li\u003e\n    \u003cli\u003eRemove the old impeller, pin or key, wear plate and gaskets. Clean the mating surfaces without damaging the housing or driveshaft.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement wear plate and gaskets in the same orientation as the original components.\u003c\/li\u003e\n    \u003cli\u003eFit the new impeller onto the driveshaft, align the key or pin, and rotate the driveshaft in its normal operating direction while lowering the housing so the vanes seat correctly.\u003c\/li\u003e\n    \u003cli\u003eFasten the pump housing using the manufacturer's specified hardware and torque procedure.\u003c\/li\u003e\n    \u003cli\u003eReinstall the lower unit, ensuring correct alignment of the driveshaft, shift shaft and water tube where applicable.\u003c\/li\u003e\n    \u003cli\u003eRun the engine only in water or with an appropriate flushing attachment. Confirm cooling-water flow 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 that this kit fits my outboard?\u003c\/summary\u003e\n    \u003cp\u003eCompare the complete OEM reference, engine brand, model, horsepower, stroke and serial or year condition. For Mercury applications, the catalog references center on selected 3.3 HP 2-stroke engines. For Tohatsu applications, reference 3AB-87322-0 is associated with selected MFS2, MFS2.5 and MFS3.5B\/C 4-stroke models. If any detail differs, confirm the required kit with the engine service manual or a qualified marine dealer.\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 weak or intermittent tell-tale flow, overheating at idle or low speed, reduced cooling-water output, or an impeller that is cracked, brittle, deformed or missing vane material during inspection.\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 water-pump impeller according to the engine manufacturer's maintenance schedule. Service intervals depend on operating hours, storage conditions and whether the engine is used in saltwater, sand or silty water. Replace it sooner if damage or overheating symptoms are present.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this kit if my serial number is outside the listed range?\u003c\/summary\u003e\n    \u003cp\u003eDo not assume fitment from horsepower alone. Serial-number changes can correspond to different gearcase or water-pump components. Check the complete original part number and the applicable service-manual diagram before ordering.\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 interchange with the manufacturer references listed on this page. Mercury, Mariner and Tohatsu reference numbers are used only for identification and compatibility comparison.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the shipping options?\u003c\/summary\u003e\n    \u003cp\u003eAvailable shipping methods and delivery estimates are shown at checkout and may vary by destination, carrier and inventory location.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n    \u003cp\u003eWarranty coverage and returns are governed by the seller's current policy. Contact customer support before returning a product and keep the order information and original packaging available.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the original part, engine model, stroke, year and serial range before purchase.\u003c\/li\u003e\n    \u003cli\u003eDo not operate an outboard without an adequate cooling-water supply.\u003c\/li\u003e\n    \u003cli\u003eStop operation immediately if the engine overheats or cooling-water flow is weak or absent.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended if you are not familiar with lower-unit or water-pump service.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical replacement components for selected outboard service applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFitment-Focused Information\u003c\/strong\u003e — Reference numbers and application details are provided to support careful part comparison.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Shipping availability and delivery estimates are presented at checkout for the destination entered.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723791831355,"sku":"24KM315-QM","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24KM315-QM.png?v=1763031895"}],"url":"https:\/\/seasierra.com\/collections\/tohatsu-2-5hp-2-stroke-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}