{"title":"Yamaha 2-Stroke 20-25HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eDedicated to Yamaha 2‑Stroke 20–25HP outboard engines, this page helps you quickly find compatible parts and practical service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse our main Yamaha collection, and at the bottom of this page you’ll find a quick way to start browsing parts for this engine. On the collection page, use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\" style=\"display:inline-block;background:#1a4d8f;color:#fff;text-decoration:none;padding:10px 14px;border-radius:6px;\"\u003eBrowse All Yamaha Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:10px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 20–25HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the nameplate\/serial plate on the port side clamp bracket or swivel bracket. Record the full model code and serial number.\u003c\/li\u003e\n    \u003cli\u003eModel codes typically include horsepower and features (e.g., S = 15\" shaft, L = 20\" shaft; M = manual start; E = electric start; R = remote). The suffix often denotes year or minor revisions.\u003c\/li\u003e\n    \u003cli\u003eFor 2‑Stroke models, confirm whether your engine uses premix fuel (common ratio 50:1) or has an oil‑injection pump (Autolube); this affects service tasks and some parts choices.\u003c\/li\u003e\n    \u003cli\u003eIf your boat has a remote control setup, note the control type and cable routing; tiller vs. remote models can differ in brackets, controls, and harness pieces.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:10px 0;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eYamaha 20–25HP 2‑Stroke Small Twin\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInline 2‑cylinder carbureted 2‑Stroke, mechanical shift (F‑N‑R)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e20HP and 25HP 2‑Stroke tiller or remote models (examples often noted as 20MS\/ML, 25MS\/ML\/ES types; exact code varies by market and year)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eLight weight, simple maintenance, strong low‑to‑mid range torque, proven reliability\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify shaft length and starting\/controls (tiller vs. remote). Check whether your engine is premix or oil‑injected before ordering fuel\/oil system parts. Gearcase and prop compatibility can vary with year and shaft length.\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:10px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines; always follow the factory service manual for your exact model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect for metal or milky oil; replace seals if water intrusion is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-service-maintenance-kits\"\u003eYamaha Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect at 50 hours; replace ~100 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eUse correct heat range\/gap; replace if fouled or worn.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eFuel filter \/ inline filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eReplace more often in dirty fuel environments; check primer bulb and lines.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 2 seasons or 200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eReplace sooner if weak tell‑tale, overheat alarms, or sand\/silt usage.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-water-pump-repair-kits\"\u003eYamaha Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAnodes (internal \u0026amp; external)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eChoose alloy for your water (salt: zinc\/aluminum; brackish\/fresh: aluminum\/magnesium).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-anodes\"\u003eYamaha Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePropeller \u0026amp; hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect every service\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCheck hub condition, cotter\/lock hardware, and remove fishing line from shaft.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e2‑Stroke oiling (premix or injection)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery service\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePremix engines commonly use 50:1 (verify). For oil‑injection, inspect tank, lines, and pump calibration.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\"\u003eYamaha Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:10px 0;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-service-maintenance-kits\"\u003eYamaha Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-water-pump-repair-kits\"\u003eYamaha Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase Sealing: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-lower-unit-seal-kits\"\u003eYamaha Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-anodes\"\u003eYamaha Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:10px 0;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect intake screens, thermostat, and water pump impeller; look for sand\/silt wear.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCheck fuel quality, filter restriction, carb settings, and prop hub condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eFuel filter, carb kit, spark plugs, propeller hub\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify choke\/enrichment operation, plug condition\/gap, and carb cleanliness.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs, carb rebuild kit, primer\/choke components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfirm correct premix ratio or oil‑pump setting; look for stuck choke or flooded carb.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eOil lines\/pump parts, carb kit, fuel needle\/seat\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase noise or metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eChange gear oil; inspect for water intrusion and prop‑shaft seal damage.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eLower unit seal kit, gear oil, prop‑shaft hardware\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:10px 0;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome service parts interchange across multiple years, but gearcases, clamps, ignition modules, and controls can differ by year and model variant. Always match parts to your exact model code and shaft length. When in doubt, browse by Yamaha and filter by horsepower\/year, or contact us with your model code.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs a rule of thumb, every 2 seasons or ~200 hours, and sooner if you operate in sand, silt, or see a weak tell‑tale. Regular replacement protects the powerhead from overheating.\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 every 100 hours or annually. If the oil looks milky or metallic, service seals before further operation to prevent gear damage.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do I need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full model code, serial number, shaft length (S\/L), starting\/controls (manual\/electric; tiller\/remote), and whether the engine is premix or oil‑injected. Clear photos of the nameplate and the part in question are also helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eReady to find parts for your Yamaha 2‑Stroke 20–25HP? Browse the main Yamaha collection and narrow by horsepower, year, and model using Filter \u0026amp; Sort.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\" style=\"display:inline-block;background:#1a4d8f;color:#fff;text-decoration:none;padding:10px 14px;border-radius:6px;\"\u003eShop Yamaha Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;color:#444;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"water-pump-impeller-fits-yamaha-20hp-25hp-2-stroke-replaces-6g0-44352-00-00","title":"Water Pump Impeller with Key for Yamaha 20A, 20B \u0026 25A 2-Stroke Outboards – Replaces 6G0-44352-00","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis is a new aftermarket \u003cstrong\u003ewater pump impeller with key\u003c\/strong\u003e for Yamaha 20A, 20B and 25A 2-stroke outboards. The impeller is a service component for the engine cooling system and is supplied with one matching key for installation.\u003c\/p\u003e\n\u003cp\u003eThis impeller replaces Yamaha OEM part number \u003cstrong\u003e6G0-44352-00\u003c\/strong\u003e. Confirm the model designation and compare the original component before ordering, because year, serial-number and lower-unit configurations may vary.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for Yamaha 20A, 20B and 25A 2-stroke outboards.\u003c\/li\u003e\n  \u003cli\u003eIncludes one water pump impeller and one installation key.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement for routine water-pump service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following reference to compare the listed replacement number with your original part.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis impeller is listed for the following Yamaha 2-stroke model designations. Verify the complete model label, year and serial number against your existing impeller or parts diagram before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha Outboard\u003c\/td\u003e\n        \u003ctd\u003e20A\u003c\/td\u003e\n        \u003ctd\u003e20 HP class\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n        \u003ctd\u003eVerify complete model and serial number.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha Outboard\u003c\/td\u003e\n        \u003ctd\u003e20B\u003c\/td\u003e\n        \u003ctd\u003e20 HP class\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n        \u003ctd\u003eVerify complete model and serial number.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha Outboard\u003c\/td\u003e\n        \u003ctd\u003e25A\u003c\/td\u003e\n        \u003ctd\u003e25 HP class\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n        \u003ctd\u003eVerify complete model and serial number.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater Pump Impeller with Key\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eYamaha 20A, 20B and 25A 2-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eDirect replacement with included key\u003c\/dd\u003e\n  \u003cdt\u003eOEM Reference\u003c\/dt\u003e\n  \u003cdd\u003e6G0-44352-00\u003c\/dd\u003e\n  \u003cdt\u003eOuter Diameter\u003c\/dt\u003e\n  \u003cdd\u003e69.08 mm (2.72\")\u003c\/dd\u003e\n  \u003cdt\u003eHeight\u003c\/dt\u003e\n  \u003cdd\u003e13.08 mm (0.515\")\u003c\/dd\u003e\n  \u003cdt\u003eInternal Shaft Insert Diameter\u003c\/dt\u003e\n  \u003cdd\u003e13.72 mm (0.54\")\u003c\/dd\u003e\n  \u003cdt\u003eBlade Count\u003c\/dt\u003e\n  \u003cdd\u003e6\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n  \u003cdd\u003e15 g (0.033 lbs)\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eNeoprene\/rubber with plastic hub\u003c\/dd\u003e\n  \u003cdt\u003eCondition\u003c\/dt\u003e\n  \u003cdd\u003eNew\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Water pump impeller\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Installation key\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the spark plug leads and battery for safety.\u003c\/li\u003e\n  \u003cli\u003ePlace a drain pan and remove the gearcase drain screw to empty the lower-unit oil.\u003c\/li\u003e\n  \u003cli\u003eRemove the bolts securing the lower unit to the engine and carefully lower it.\u003c\/li\u003e\n  \u003cli\u003eUnbolt and remove the water pump housing cover. Note the rotational direction of the old impeller blades.\u003c\/li\u003e\n  \u003cli\u003eSlide the old impeller off the driveshaft and remove the old key.\u003c\/li\u003e\n  \u003cli\u003eClean the housing and base plate, inspecting them for wear or damage.\u003c\/li\u003e\n  \u003cli\u003eInstall the included key and slide the new impeller onto the driveshaft, turning the shaft in the correct direction to seat the blades.\u003c\/li\u003e\n  \u003cli\u003eReassemble the pump housing with appropriate gaskets and tighten fasteners to the manufacturer’s specified torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, ensuring that the water tube and shift shaft align correctly.\u003c\/li\u003e\n  \u003cli\u003eRefill the gearcase with the correct lubricant before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and test the engine with an adequate water supply, confirming a strong tell-tale stream.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I ensure this impeller fits my exact Yamaha model?\u003c\/summary\u003e\n  \u003cp\u003eConfirm that your outboard is a Yamaha 20A, 20B or 25A 2-stroke model and compare the complete model and serial-number information with your parts diagram. You can also compare the listed dimensions, including the 69.08 mm outer diameter, 13.08 mm height and 13.72 mm internal shaft insert diameter, with the original component.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing water pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon indicators include a weak or absent tell-tale stream, an overheating alarm, steam from the exhaust and reduced cooling performance. Stop the engine if overheating occurs and inspect the cooling system before further operation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace my outboard’s impeller?\u003c\/summary\u003e\n  \u003cp\u003eInspect the impeller during regular maintenance and replace it when the blades show cracking, hardening, deformation or wear. Replacement intervals depend on operating hours and water conditions; sandy, silty and saltwater use can increase wear.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this impeller come with the required key?\u003c\/summary\u003e\n  \u003cp\u003eYes. This product includes one water pump impeller and one installation key.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is an aftermarket replacement impeller listed as a replacement for Yamaha OEM part number 6G0-44352-00.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I check before ordering?\u003c\/summary\u003e\n  \u003cp\u003eVerify the complete engine model, year and serial number, compare the original impeller dimensions and confirm that your original part uses the same key arrangement. Do not rely on horsepower alone to determine fitment.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the model, serial number, dimensions and original part before ordering.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not a Yamaha OEM component.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery and follow the outboard manufacturer’s service procedures during installation.\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 common outboard maintenance applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear Fitment Information\u003c\/strong\u003e — Check model designations, original parts and dimensions before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService-Focused Support\u003c\/strong\u003e — Product information is organized to help you prepare for routine marine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723797631291,"sku":"17IY020K","price":17.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17IY020K_1_dad278a5-99d4-4adf-a85d-bf7f50b0361b.jpg?v=1763032026"},{"product_id":"water-pump-impeller-kit-fits-yamaha-20d-25d-25n-2-stroke-outboards-replaces-yamaha-6l2-w0078-00-00-sierra-18-3431-mercury-879137","title":"Water Pump Repair Kit – Fits Yamaha 20–25 HP 2-Stroke, 2-Cylinder Outboards (Without Housing; Replaces Yamaha 6L2-W0078-00-00, Sierra 18-3431)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Repair Kit\u003c\/strong\u003e is intended for selected Yamaha 20–25 HP, 2-stroke, 2-cylinder outboard applications. It is supplied for water-pump service and is designed for use \u003cstrong\u003ewithout the pump housing\u003c\/strong\u003e. Replace worn or damaged water-pump service parts to help restore dependable cooling-water circulation.\u003c\/p\u003e\n\u003cp\u003eThe kit corresponds to Yamaha OEM reference \u003cstrong\u003e6L2-W0078-00-00\u003c\/strong\u003e and aftermarket reference \u003cstrong\u003eSierra 18-3431\u003c\/strong\u003e. These numbers are provided for identification and cross-reference only; confirm the complete engine model and existing water-pump components before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWater pump repair kit for Yamaha outboards.\u003c\/li\u003e\n  \u003cli\u003eFor 20–25 HP, 2-stroke, 2-cylinder applications identified in the available catalog data.\u003c\/li\u003e\n  \u003cli\u003eWithout pump housing.\u003c\/li\u003e\n  \u003cli\u003eDesigned for water-pump service and replacement of worn cooling-system components.\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 part being removed from your engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand or Reference Type\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha OEM reference\u003c\/td\u003e\n\u003ctd\u003e6L2-W0078-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra aftermarket reference\u003c\/td\u003e\n\u003ctd\u003e18-3431\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eCompatibility is based on the available application information. Yamaha model codes, production year, shaft length, and serial-number ranges are not fully specified in the supplied company record, so verify those details against your engine identification plate and the original water-pump parts before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eCylinder Configuration\u003c\/th\u003e\n        \u003cth\u003eHousing\u003c\/th\u003e\n        \u003cth\u003ePrimary Reference\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e20–25 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2-Cylinder\u003c\/td\u003e\n        \u003ctd\u003eNot included\u003c\/td\u003e\n        \u003ctd\u003e6L2-W0078-00-00\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 repair kit\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eYamaha 20–25 HP, 2-stroke, 2-cylinder outboards\u003c\/dd\u003e\n  \u003cdt\u003eInstallation Scope\u003c\/dt\u003e\n  \u003cdd\u003eWater-pump service and replacement\u003c\/dd\u003e\n  \u003cdt\u003ePump Housing\u003c\/dt\u003e\n  \u003cdd\u003eNot included\u003c\/dd\u003e\n  \u003cdt\u003eOEM Reference\u003c\/dt\u003e\n  \u003cdd\u003e6L2-W0078-00-00\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket Reference\u003c\/dt\u003e\n  \u003cdd\u003eSierra 18-3431\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cp\u003eThis listing is for the water pump repair kit described above and does not include the pump housing. The available product record does not provide a definitive component-by-component packing list or quantities. Compare the supplied parts with your original water-pump assembly before installation and contact the seller if the contents differ from the product images or order details.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the engine model, horsepower, stroke, cylinder configuration, and existing water-pump reference before beginning work.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery where applicable, remove the engine cover, and disconnect the shift linkage as required for lower-unit removal.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the engine service manual and place it securely on a suitable work surface.\u003c\/li\u003e\n  \u003cli\u003eRemove the water-pump cover and inspect the housing, wear surfaces, drive key, seals, and mating surfaces for damage or excessive wear.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller and clean debris from the pump cavity. Do not reuse damaged gaskets, O-rings, keys, or fasteners.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement service parts in the correct order and align the impeller with the driveshaft key.\u003c\/li\u003e\n  \u003cli\u003eLubricate the impeller and pump-cover interior with a suitable water-compatible lubricant or soap-and-water solution. Avoid petroleum products that may damage rubber components.\u003c\/li\u003e\n  \u003cli\u003eReinstall the pump cover and tighten fasteners to the torque specified in the engine service manual.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, reconnect the shift linkage, and test for a strong, continuous cooling-water flow before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this repair kit fits my engine?\u003c\/summary\u003e\u003cp\u003eConfirm that your engine is a Yamaha 20–25 HP, 2-stroke, 2-cylinder outboard and compare the existing water-pump reference with Yamaha 6L2-W0078-00-00 or Sierra 18-3431. Also check the model code, year, shaft configuration, and serial number in the service documentation because those details are not fully defined in the available product record.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this kit include the water-pump housing?\u003c\/summary\u003e\u003cp\u003eNo. The product is specified as a water-pump service kit without the pump housing. Inspect your existing housing and replace it separately if it is scored, warped, cracked, or excessively worn.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are common signs of a worn impeller or water-pump service parts?\u003c\/summary\u003e\u003cp\u003ePossible signs include a weak or intermittent telltale stream, overheating, reduced cooling-water flow, or visible damage to the impeller and pump wear surfaces. Stop operation if the engine overheats and investigate the cooling system before further use.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install the kit myself?\u003c\/summary\u003e\u003cp\u003eInstallation requires lower-unit removal and correct reassembly of the water pump and shift linkage. It should be performed by a qualified technician or by someone with the correct service manual and appropriate mechanical experience.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM Yamaha part?\u003c\/summary\u003e\u003cp\u003eThis is an aftermarket replacement repair kit. Yamaha 6L2-W0078-00-00 and Sierra 18-3431 are reference numbers used to help identify the intended application; the replacement is not represented as a genuine Yamaha component.\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 identification and water-pump reference before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not assume compatibility from horsepower alone; model, year, shaft, and serial-number conditions may affect fitment.\u003c\/li\u003e\n  \u003cli\u003eThe pump housing is not included.\u003c\/li\u003e\n  \u003cli\u003eUse the engine manufacturer's service manual for removal procedures, torque specifications, shift-linkage adjustment, and final testing.\u003c\/li\u003e\n  \u003cli\u003eDo not operate an outboard that shows signs of overheating or inadequate cooling-water flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical replacement components for routine outboard service and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and fitment information are provided to help customers compare parts before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Installation Planning\u003c\/strong\u003e — Always compare the replacement with the original component and consult the engine service documentation before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723797664059,"sku":"17KY001","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_20D_25D_25N_6L2-W0078-00-00_-_JLM_MARINE-8288800.jpg?v=1763032027"},{"product_id":"water-pump-impeller-fits-yamaha-20hp-25hp-2-stroke-outboard-engines-replaces-6g0-44352-00-00","title":"Water Pump Impeller for Yamaha 20A, 20B \u0026 25A 2-Stroke Outboards – OEM Reference 6G0-44352-00","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis is an aftermarket \u003cstrong\u003ewater pump impeller for Yamaha 20A, 20B and 25A 2-stroke outboard engines\u003c\/strong\u003e. It is intended for the water pump assembly and corresponds to Yamaha OEM reference \u003cstrong\u003e6G0-44352-00\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe company catalog identifies this product as a single 2-stroke water pump impeller, not a kit. Confirm the complete engine model and serial-number requirements before ordering, especially when model-year configurations differ.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement impeller for the outboard water pump assembly.\u003c\/li\u003e\n  \u003cli\u003eDesigned for the Yamaha 20A, 20B and 25A model groups listed below.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement part; Yamaha is referenced for compatibility and part-number identification only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Reference\u003c\/h2\u003e\n\u003cp\u003eUse the following OEM reference when comparing your existing impeller and service-manual requirements.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Reference\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eOEM Reference\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe company fitment record lists the following Yamaha 2-stroke outboard model groups. Verify the exact model designation, year and serial number against your service manual before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Reference\u003c\/th\u003e\n        \u003cth\u003eFitment Notes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e20A\u003c\/td\u003e\n        \u003ctd\u003e20 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n        \u003ctd\u003eConfirm exact model and serial number\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e20B\u003c\/td\u003e\n        \u003ctd\u003e20 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n        \u003ctd\u003eConfirm exact model and serial number\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e25A\u003c\/td\u003e\n        \u003ctd\u003e25 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6G0-44352-00\u003c\/td\u003e\n        \u003ctd\u003eConfirm exact model and serial number\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Information\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump impeller\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eYamaha 2-stroke outboard water pump assembly\u003c\/dd\u003e\n  \u003cdt\u003eListed Model Groups\u003c\/dt\u003e\n  \u003cdd\u003e20A, 20B and 25A\u003c\/dd\u003e\n  \u003cdt\u003eOEM Reference\u003c\/dt\u003e\n  \u003cdd\u003e6G0-44352-00\u003c\/dd\u003e\n  \u003cdt\u003eProduct Configuration\u003c\/dt\u003e\n  \u003cdd\u003eSingle impeller\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Water Pump Impeller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The company catalog identifies this listing as a single impeller. A drive key, gasket, wear plate or other water-pump components are not specified as included. Reuse or purchase any additional installation components required by your engine service procedure.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the engine battery or ignition system as appropriate and follow the manufacturer’s service-manual safety procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the instructions for your specific Yamaha outboard.\u003c\/li\u003e\n  \u003cli\u003eOpen the water pump housing and remove the old impeller.\u003c\/li\u003e\n  \u003cli\u003eInspect the pump housing, wear plate, drive key and related components for wear or damage.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement impeller using the correct key and any required gaskets or seals for your engine.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water pump and lower unit in accordance with the service manual.\u003c\/li\u003e\n  \u003cli\u003eRun the engine in a suitable test environment and confirm normal cooling-water flow before returning it to service.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eInstallation should be performed by a qualified marine technician when the correct service procedure or component configuration is uncertain.\u003c\/p\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich Yamaha engines is this impeller listed for?\u003c\/summary\u003e\u003cp\u003eThe company fitment record lists Yamaha 20A, 20B and 25A 2-stroke outboard model groups. Check the complete model designation and serial number against your service manual before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat OEM reference should I compare?\u003c\/summary\u003e\u003cp\u003eCompare your existing part and service-manual requirements with Yamaha OEM reference 6G0-44352-00.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a complete water pump kit?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for one water pump impeller. Additional components such as a drive key, gasket, housing or wear plate are not specified as included.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs a drive key included?\u003c\/summary\u003e\u003cp\u003eA drive key is not specified as included in the company package information. Check your existing key and obtain a replacement if it is worn, damaged or missing.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan this impeller be used on a 4-stroke engine?\u003c\/summary\u003e\u003cp\u003eThe listed application is for Yamaha 2-stroke model groups 20A, 20B and 25A. Do not use it on another engine unless the manufacturer’s parts information confirms the same impeller requirement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are common signs of an impeller problem?\u003c\/summary\u003e\u003cp\u003eReduced cooling-water flow, overheating, or visible cracking and wear can indicate an impeller or related water-pump problem. Inspect the complete cooling system and follow the applicable service manual.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\u003cp\u003eReplacement intervals depend on the engine manufacturer’s maintenance schedule and operating conditions. Inspect the impeller during scheduled water-pump service and replace it when worn, damaged or otherwise required by the service manual.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM Yamaha part?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement impeller. Yamaha and the OEM reference are used to identify the intended application and comparison part number.\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 and serial number before purchase.\u003c\/li\u003e\n  \u003cli\u003eCompare the original impeller and the OEM reference with the information in your service manual.\u003c\/li\u003e\n  \u003cli\u003eThis listing is for one impeller only; additional water-pump components are not specified as included.\u003c\/li\u003e\n  \u003cli\u003eDo not operate the engine without an adequate water supply and proper cooling-system test procedure.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when lower-unit removal or water-pump service is unfamiliar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — We provide aftermarket components for common marine maintenance and repair applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product pages identify the listed engine groups and reference numbers to support fitment checks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact support with your complete engine model and serial information when you need help confirming an application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723797696827,"sku":"17IY020","price":16.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_for_Yamaha_20_25HP_-_JLM_MARINE-8288732.jpg?v=1763032029"},{"product_id":"water-pump-impeller-fits-yamaha-20-25hp-outboards-replaces-6l2-44352-00","title":"Water Pump Impeller with Key for Yamaha 20D, 25N, F20 \u0026 F25 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 aftermarket \u003cstrong\u003ewater pump impeller with key\u003c\/strong\u003e is designed for selected Yamaha 20D, 25N, F20 and F25 outboards. The impeller is a service component in the lower-unit water pump and helps maintain the cooling-water flow required for normal engine operation.\u003c\/p\u003e\n  \u003cp\u003eThe supplied impeller is referenced to Yamaha OEM numbers \u003cstrong\u003e6L2-44352-00\u003c\/strong\u003e and \u003cstrong\u003e6L2-44352-00-00\u003c\/strong\u003e. Catalog cross-references also identify Sierra \u003cstrong\u003e18-3065\u003c\/strong\u003e, Mallory \u003cstrong\u003e9-45613\u003c\/strong\u003e, and GLM \u003cstrong\u003e89622\u003c\/strong\u003e for the corresponding impeller application. Always verify the exact engine model and existing part number before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eIncludes one replacement impeller and one matching water-pump key.\u003c\/li\u003e\n    \u003cli\u003eFor selected Yamaha 2-stroke 20D and 25N applications.\u003c\/li\u003e\n    \u003cli\u003eFor selected Yamaha 4-stroke F20 and F25 applications.\u003c\/li\u003e\n    \u003cli\u003eDesigned as an aftermarket replacement for the water-pump impeller service component.\u003c\/li\u003e\n    \u003cli\u003eInstallation requires access to the water-pump housing in the lower unit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThese are customer-facing OEM and aftermarket reference numbers associated with this impeller application. They are provided for identification and cross-reference purposes only.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n          \u003cth\u003eReference Type\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n          \u003ctd\u003eOEM reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003eOEM reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-3065\u003c\/td\u003e\n          \u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMallory\u003c\/td\u003e\n          \u003ctd\u003e9-45613\u003c\/td\u003e\n          \u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eGLM\u003c\/td\u003e\n          \u003ctd\u003e89622\u003c\/td\u003e\n          \u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eFitment depends on the complete engine model and configuration. Confirm the model marking on your outboard and compare the existing impeller or OEM reference before installation.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel or Model Family\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eOEM Reference\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e20D\u003c\/td\u003e\n          \u003ctd\u003e20 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e25N\u003c\/td\u003e\n          \u003ctd\u003e25 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eF20\u003c\/td\u003e\n          \u003ctd\u003e20 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eF25\u003c\/td\u003e\n          \u003ctd\u003e25 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003e\u003csmall\u003eDo not assume that every Yamaha 20 HP or 25 HP outboard uses this impeller. Model designation, stroke type, year, serial range, and water-pump configuration can affect fitment.\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eWater pump impeller with key\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected Yamaha 20D, 25N, F20 and F25 outboards\u003c\/dd\u003e\n    \u003cdt\u003eStroke Applications\u003c\/dt\u003e\n    \u003cdd\u003e2-stroke and selected 4-stroke applications as listed above\u003c\/dd\u003e\n    \u003cdt\u003eInstallation Location\u003c\/dt\u003e\n    \u003cdd\u003eWater-pump housing in the lower unit\u003c\/dd\u003e\n    \u003cdt\u003ePackage Quantity\u003c\/dt\u003e\n    \u003cdd\u003e1 impeller and 1 key\u003c\/dd\u003e\n    \u003cdt\u003eProduct Status\u003c\/dt\u003e\n    \u003cdd\u003eAftermarket replacement; not a Yamaha-branded OEM 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\u003e1 x Water pump impeller\u003c\/li\u003e\n    \u003cli\u003e1 x Water-pump key\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003csmall\u003e\u003cem\u003eGaskets, wear plates, pump housings, bolts, and complete water-pump service kits are not included unless separately stated in the product option or order confirmation.\u003c\/em\u003e\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eReview the appropriate service information for your exact Yamaha outboard before beginning work.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the battery and make sure the engine cannot start accidentally.\u003c\/li\u003e\n    \u003cli\u003eRemove the lower unit according to the manufacturer's procedure.\u003c\/li\u003e\n    \u003cli\u003eRemove the water-pump housing and retain the original components for inspection.\u003c\/li\u003e\n    \u003cli\u003eRemove the old impeller and key from the driveshaft, noting the key position and impeller orientation.\u003c\/li\u003e\n    \u003cli\u003eClean the pump housing and inspect the housing, wear plate, seals, and driveshaft for scoring, corrosion, or other damage.\u003c\/li\u003e\n    \u003cli\u003eInstall the supplied key in the driveshaft keyway and fit the new impeller over the key.\u003c\/li\u003e\n    \u003cli\u003eLubricate and position the impeller as recommended by the service information, then reinstall the water-pump housing.\u003c\/li\u003e\n    \u003cli\u003eReinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube are correctly aligned.\u003c\/li\u003e\n    \u003cli\u003eRun the engine only after confirming that the cooling-water supply and all fasteners are correctly installed. Check for a normal telltale stream and signs of overheating.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this impeller fits my Yamaha outboard?\u003c\/summary\u003e\n    \u003cp\u003eCheck the complete engine model marking, horsepower, stroke type, and serial information. Then compare the existing impeller or parts-list reference with Yamaha 6L2-44352-00 or 6L2-44352-00-00. Do not rely on horsepower alone.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this product include the key?\u003c\/summary\u003e\n    \u003cp\u003eYes. The package includes one water-pump impeller and one key. It does not include a complete water-pump service kit or other pump hardware.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the signs of a worn water-pump impeller?\u003c\/summary\u003e\n    \u003cp\u003ePossible symptoms include a weak or intermittent telltale stream, overheating, an overheating warning, or steam. During service, replace an impeller that is cracked, brittle, deformed, or missing vane material, and inspect the surrounding pump components for damage.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should an outboard impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eReplacement timing depends on the engine manufacturer's maintenance schedule, operating hours, storage conditions, and water quality. Inspect the impeller at the recommended service interval and replace it sooner if the engine has been operated in sandy, silty, or contaminated water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a Yamaha OEM part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement impeller supplied with a key. Yamaha part numbers are shown only as OEM references to help identify the intended application.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use the listed aftermarket numbers to confirm fitment?\u003c\/summary\u003e\n    \u003cp\u003eThe listed aftermarket numbers are cross-reference leads for the corresponding impeller application. Always confirm the full engine model and compare the dimensions, keyway, and original part before installation.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the engine model, stroke type, serial information, and existing part number before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not operate an outboard without a properly functioning cooling-water supply.\u003c\/li\u003e\n    \u003cli\u003eUse the correct service procedure and manufacturer torque specifications for your engine.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended if you are not familiar with lower-unit or water-pump service.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement and is not manufactured or branded by Yamaha.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical replacement components for routine outboard maintenance and repair.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product information is organized around model, stroke, and OEM reference details.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact support with your complete engine model and existing part information when fitment assistance is needed.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723797762363,"sku":"17IY008K","price":17.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_20_25HP_6L2-44352-00_-_JLM_MARINE-8288771.jpg?v=1763032032"},{"product_id":"water-pump-impeller-fits-yamaha-20-30hp-replaces-6l2-44352-00","title":"Water Pump Impeller for Yamaha 20D \u0026 25N 2-Stroke and F20 \u0026 F25 4-Stroke Outboards – Replaces 6L2-44352-00","description":"\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis aftermarket water pump impeller is designed for the cooling systems of selected Yamaha outboard motors, including Yamaha 20D and 25N 2-stroke models and Yamaha F20 and F25 4-stroke models. It replaces the Yamaha OEM impeller reference \u003cstrong\u003e6L2-44352-00\u003c\/strong\u003e; the full OEM format \u003cstrong\u003e6L2-44352-00-00\u003c\/strong\u003e is also used in application references.\u003c\/p\u003e\n  \u003cp\u003eThe impeller helps maintain the water flow required for proper outboard cooling. Confirm your exact engine model and compare the original impeller and water-pump assembly before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eDirect replacement-style water pump impeller for selected Yamaha outboards.\u003c\/li\u003e\n    \u003cli\u003eApplicable to the Yamaha 20D and 25N 2-stroke models listed below.\u003c\/li\u003e\n    \u003cli\u003eApplicable to the Yamaha F20 and F25 4-stroke models listed below.\u003c\/li\u003e\n    \u003cli\u003eInstallation requires access to the water pump and normally involves lower-unit removal.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThese are manufacturer and aftermarket reference numbers associated with this impeller. Part-number references do not replace checking the complete engine application.\u003c\/p\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:400px; }\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  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand or Reference Type\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha OEM\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha OEM full format\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra Marine\u003c\/td\u003e\n          \u003ctd\u003e18-3065\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMallory Marine\u003c\/td\u003e\n          \u003ctd\u003e9-45613\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eAdditional company-listed reference\u003c\/td\u003e\n          \u003ctd\u003e8M6014000\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eAdditional company-listed reference\u003c\/td\u003e\n          \u003ctd\u003e8M6010333\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThe company application records for this impeller identify the following Yamaha model groups. Model, horsepower, stroke, and serial-number conditions should be checked together before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eOEM Reference\u003c\/th\u003e\n          \u003cth\u003eApplication Note\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e20D\u003c\/td\u003e\n          \u003ctd\u003e20\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n          \u003ctd\u003eVerify the complete model designation and serial number.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e25N\u003c\/td\u003e\n          \u003ctd\u003e25\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00\u003c\/td\u003e\n          \u003ctd\u003eVerify the complete model designation and serial number.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eF20\u003c\/td\u003e\n          \u003ctd\u003e20\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003eVerify the complete model designation and serial number.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eF25\u003c\/td\u003e\n          \u003ctd\u003e25\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e6L2-44352-00-00\u003c\/td\u003e\n          \u003ctd\u003eVerify the complete model designation and serial number.\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003eDo not rely on horsepower alone. Yamaha model suffixes, production details, and serial-number ranges can affect fitment.\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\u003eWater pump impeller\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected Yamaha outboard water-pump cooling systems\u003c\/dd\u003e\n    \u003cdt\u003eCompatible Stroke Types\u003c\/dt\u003e\n    \u003cdd\u003e2-stroke and 4-stroke applications as listed in the compatibility table\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eReplacement installation normally requires removal of the lower unit and water-pump housing\u003c\/dd\u003e\n    \u003cdt\u003ePrimary OEM Reference\u003c\/dt\u003e\n    \u003cdd\u003e6L2-44352-00\u003c\/dd\u003e\n    \u003cdt\u003eAlternate Full OEM Format\u003c\/dt\u003e\n    \u003cdd\u003e6L2-44352-00-00\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Water pump impeller\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eThis listing is for the impeller only. A water-pump housing, wear plate, O-ring, key, gasket, or complete repair kit is not included unless specifically stated in the order options.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003cp\u003eInstallation requires mechanical proficiency and normally involves removing the outboard lower unit. Remove the water-pump housing, take out the old impeller, and clean the housing and mating surfaces before installation. Install the replacement impeller in the correct orientation for the engine's water-pump design, then reassemble the housing and lower unit using the manufacturer's service procedures and torque specifications.\u003c\/p\u003e\n  \u003cp\u003eAfter installation, run the engine in an appropriate test environment and confirm that cooling-water flow is present. Stop the engine immediately if the tell-tale stream is weak or absent, or if an overheating warning occurs.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm that this impeller fits my Yamaha outboard?\u003c\/summary\u003e\n    \u003cp\u003eCheck the complete engine model, horsepower, stroke type, and serial number against the compatibility information. This listing is identified for Yamaha 20D and 25N 2-stroke models and Yamaha F20 and F25 4-stroke models. Also compare the old impeller and water-pump components before installation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the signs of a worn water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eCommon signs include a weak or missing tell-tale stream, an overheating warning, reduced cooling-water flow, or visibly cracked, hardened, or damaged impeller vanes. Inspect the water-pump components whenever the lower unit is serviced.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this listing include a key, O-ring, or gasket?\u003c\/summary\u003e\n    \u003cp\u003eNo. This listing is for one impeller only. Keys, O-rings, gaskets, housings, wear plates, and other water-pump components are not included unless explicitly shown in the selected product option.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM Yamaha part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement impeller intended for the listed applications. Yamaha OEM and aftermarket reference numbers are provided for identification and fitment comparison only.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eReplacement intervals depend on operating conditions, service history, and the engine manufacturer's maintenance schedule. Inspect the impeller regularly and replace it if the vanes are worn, brittle, cracked, or deformed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat should I do if the reference number matches but the part looks different?\u003c\/summary\u003e\n    \u003cp\u003eDo not install the part based on the number alone. Compare the impeller dimensions, vane design, keyway, and water-pump assembly with your original component, and confirm the complete engine application before purchase.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the complete engine model, stroke type, horsepower, and serial number before ordering.\u003c\/li\u003e\n    \u003cli\u003ePart-number references are provided for identification and should be checked against the complete application.\u003c\/li\u003e\n    \u003cli\u003eUse proper service procedures and manufacturer torque specifications during installation.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended if you are not experienced with outboard lower-unit service.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM Yamaha 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\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — We supply replacement components for common marine service applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and compatibility information are provided to help with part identification.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact support with your engine model and reference details if you need help confirming an application.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723797827899,"sku":"17IY008","price":14.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17IY0081_ca575eae-f526-47df-8153-ef4e5da27301.jpg?v=1763032035"}],"url":"https:\/\/seasierra.com\/collections\/yamaha-2-stroke-20-25hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}