{"title":"Parsun 3HP 4-Stroke Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;max-width:1000px\"\u003e\n  \u003cp\u003eThis page is for Parsun 4‑Stroke 3HP outboard engines. It helps you find compatible parts and service information, with maintenance tips, common replacement items, and troubleshooting guidance. You can also browse the main Parsun collection. Scroll to the bottom of this page to start browsing parts for this engine. On the collection pages, use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block;padding:10px 16px;border:1px solid #0ea5e9;border-radius:6px;text-decoration:none\"\u003eBrowse All Parsun Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px;max-width:1000px\"\u003e\n  \u003ch2\u003eHow to Identify Your 3HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial sticker on the transom clamp bracket (usually on the left side) or on the swivel bracket. It lists model, serial number, and sometimes shaft length.\u003c\/li\u003e\n    \u003cli\u003eRead the model code and suffix: the base code typically shows horsepower and 4‑stroke designation; suffix letters denote shaft length (S\/L), tiller or remote control, and manual vs. electric start.\u003c\/li\u003e\n    \u003cli\u003eVisual cues: a 3HP 4‑stroke is a compact, single‑cylinder, carbureted tiller model with an oil fill\/dipstick; fuel is straight gasoline (no premix).\u003c\/li\u003e\n    \u003cli\u003ePropeller and gearcase: small gearcase with a 2‑ or 3‑blade prop. Note the prop size stamped on the hub to select replacements.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px;max-width:1000px\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003eParsun 3HP 4‑Stroke Platform\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #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 #f3f4f6\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eSingle‑cylinder, 4‑stroke, carbureted, manual start, tiller steer; water‑cooled with impeller‑driven pump.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eTypical 3HP 4‑stroke variants with short (S) or long (L) shaft; manual tilt; basic electrical charging optional on some models.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eLight weight, very low fuel consumption, quiet operation, simple routine service.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eConfirm shaft length and propeller size before ordering. Some small 4‑strokes use an internal oil screen instead of a spin‑on filter—verify before purchase.\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;max-width:1000px\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for small 4‑stroke outboards. Always follow the procedures and schedules in your official service manual for your exact model.\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 #f3f4f6\"\u003eEngine oil \u0026amp; filter\/screen\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eFirst 10 hours, then every 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eWarm engine before draining; some models use an internal screen rather than a spin‑on filter.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInspect for metal or milky oil indicating water intrusion; replace drain screw gaskets.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/lower-unit-seal-kits\"\u003eLower 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 #f3f4f6\"\u003eSpark plug(s)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInspect every 100 hours; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eCheck gap and insulator color; fouling often points to rich mixture or old fuel.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\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 #f3f4f6\"\u003eFuel filter \/ inline filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eReplace more frequently if using portable tanks or if fuel quality is uncertain.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\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 #f3f4f6\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInspect annually; replace every 2–3 seasons or sooner if weak tell‑tale\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eEssential for cooling; running dry or sandy water shortens life.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\"\u003eWater Pump Impeller Rebuild Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eAnodes (zincs)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInspect every 50 hours; replace when 50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eChoose alloy for your water type (salt, brackish, fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003ePropeller inspection\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eEach outing; replace if bent\/chipped\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eA damaged prop reduces thrust and can strain the gearcase.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\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\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:16px;max-width:1000px\"\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\/water-pump-impeller-rebuild-kits\"\u003eWater Pump Impeller Rebuild Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System — \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\"\u003eFuel Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical — \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/starters\"\u003eStarters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion — \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection — \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eControls \u0026amp; Cables — \u003ca href=\"https:\/\/seasierra.com\/collections\/outboard-control-cables\"\u003eOutboard Control Cables\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:16px;max-width:1000px\"\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 #f3f4f6\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInspect intake screen for blockage; verify impeller condition and housing; confirm thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eWater pump kit, intake screen, thermostat, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eCheck prop for damage or hub slip; examine spark plug; replace fuel filter; drain stale fuel and clean carb.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003ePropeller, spark plug, fuel filter, carburetor kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eUse choke\/enricher correctly; verify fresh fuel; check for air leaks in fuel line\/bulb; inspect plug gap.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eSpark plug, fuel filter, fuel pump, carburetor kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eGearcase noise or milky gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eLook for fishing line on prop shaft; pressure test lower unit; replace leaking seals and refill with fresh gear lube.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eLower unit seal kit, prop shaft seals, drain plug gaskets\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;max-width:1000px\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or small 4‑stroke platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome service items (spark plugs, anodes, impellers) may match across nearby model years, but ignition, carburetor, cowlings, and gearcase parts can differ. Always confirm by model code, serial number, and shaft length.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eInspect it annually and replace every 2–3 seasons, or immediately if the tell‑tale is weak, the engine overheats, or the impeller has run dry or ingested sand.\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 least once a year or every 100 hours. If the oil appears milky or metallic, service seals and investigate before further use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full model code, serial number, shaft length (S\/L), control type (tiller\/remote), and a photo of the nameplate and the part you are replacing.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px;border-top:1px solid #e5e7eb;max-width:1000px\"\u003e\n  \u003cp\u003eReady to find parts by horsepower and model? Browse our main Parsun categories and filter by what you need.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block;padding:10px 16px;border:1px solid #0ea5e9;border-radius:6px;text-decoration:none\"\u003eBrowse All Parsun Parts\u003c\/a\u003e\u003c\/p\u003e\n  \u003cp style=\"color:#6b7280\"\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-2-2-5hp-3hp-replaces-6l5-44352-00-18-8911-h-500322","title":"Water Pump Impeller with Key for Yamaha 3HP 3A\/Malta and F2.5 Outboards – Replaces 6L5-44352-00, 18-8911","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\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller with key\u003c\/strong\u003e is intended for selected Yamaha outboard applications, including Yamaha 3HP 3A\/Malta models and F2.5 outboards. It replaces the Yamaha reference \u003cstrong\u003e6L5-44352-00\u003c\/strong\u003e and the Sierra aftermarket reference \u003cstrong\u003e18-8911\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe impeller is a service part for the outboard cooling system. It is installed in the water pump and helps circulate cooling water through the engine. Always compare the original impeller, keyway and water-pump assembly before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket water pump impeller supplied with one matching key.\u003c\/li\u003e\n  \u003cli\u003eDesigned for selected Yamaha 3HP 3A\/Malta and F2.5 applications.\u003c\/li\u003e\n  \u003cli\u003eSuitable for routine water-pump maintenance when the original part number and application match.\u003c\/li\u003e\n  \u003cli\u003eNot an original Yamaha-branded part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003ePart Number References\u003c\/h2\u003e\n\u003cp\u003eUse the following references to compare your existing component. A reference number alone does not replace confirmation of the complete engine model and year.\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 or source\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003cth\u003eReference type\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6L5-44352-00\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\u003e6L5-44352-00-00\u003c\/td\u003e\n\u003ctd\u003eOEM reference format used in catalog applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-8911\u003c\/td\u003e\n\u003ctd\u003eAftermarket reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe company application records identify this impeller with key for the following Yamaha applications. Model, horsepower, stroke type and year must be checked together against the engine identification label or service documentation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or application\u003c\/th\u003e\n\u003cth\u003eRated horsepower\u003c\/th\u003e\n\u003cth\u003eStroke or application note\u003c\/th\u003e\n\u003cth\u003eRecorded year range\u003c\/th\u003e\n\u003cth\u003eOEM reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha Outboard\u003c\/td\u003e\n\u003ctd\u003e3A \/ Malta\u003c\/td\u003e\n\u003ctd\u003e3 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-stroke application record\u003c\/td\u003e\n\u003ctd\u003e1988–2002\u003c\/td\u003e\n\u003ctd\u003e6L5-44352-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha Outboard\u003c\/td\u003e\n\u003ctd\u003eF2.5\u003c\/td\u003e\n\u003ctd\u003e2.5 HP\u003c\/td\u003e\n\u003ctd\u003eApplication recorded for F2.5\u003c\/td\u003e\n\u003ctd\u003e2003–2012\u003c\/td\u003e\n\u003ctd\u003e6L5-44352-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha Outboard\u003c\/td\u003e\n\u003ctd\u003eF2.5A \/ F2.5B\u003c\/td\u003e\n\u003ctd\u003e2.5 HP\u003c\/td\u003e\n\u003ctd\u003eFour-stroke application record\u003c\/td\u003e\n\u003ctd\u003eConfirm the exact model year\u003c\/td\u003e\n\u003ctd\u003e6L5-44352-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eFitment is limited to the applications represented by these records. Do not assume compatibility with other Yamaha, Parsun or similarly rated engines solely because the horsepower is the same.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eTechnical Information\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct type\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket water pump impeller with key\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Yamaha 3HP 3A\/Malta and F2.5 outboard water-pump systems\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement service part; verify the original component and keyway before installation\u003c\/dd\u003e\n  \u003cdt\u003eBrand status\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement, not an original Yamaha part\u003c\/dd\u003e\n  \u003cdt\u003eReference numbers\u003c\/dt\u003e\n  \u003cdd\u003eYamaha 6L5-44352-00 and 6L5-44352-00-00; Sierra 18-8911\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × aftermarket water pump impeller\u003c\/li\u003e\n  \u003cli\u003e1 × matching key\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe water-pump housing, cover, gaskets, wear plates, seals, bolts and other service components are not included unless separately stated.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the engine model, year, stroke type and original part reference before disassembly.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the spark-plug lead and follow the engine manufacturer’s safety procedures.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the service manual for your exact model.\u003c\/li\u003e\n  \u003cli\u003eOpen the water-pump housing and remove the old impeller and key.\u003c\/li\u003e\n  \u003cli\u003eClean the shaft, keyway and pump area. Inspect the housing, cover, wear plate, seals and gaskets for damage or excessive wear.\u003c\/li\u003e\n  \u003cli\u003eInstall the supplied key and impeller in the correct orientation. Do not force the impeller onto the shaft.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water pump and lower unit using the correct torque specifications and any required new seals or gaskets.\u003c\/li\u003e\n  \u003cli\u003eTest the engine in water and confirm a steady cooling-water discharge before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eProfessional installation is recommended if you are not experienced with outboard lower-unit and water-pump service.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n  \u003cp\u003eCheck the complete engine model, horsepower, stroke type and year, then compare the original impeller and OEM reference with the compatibility table. The Yamaha reference 6L5-44352-00 or the Sierra reference 18-8911 should match your application. Contact support with the model and serial information if the application is unclear.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a worn impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include weak or absent tell-tale water flow, overheating, cooling-water alarms and visible cracking, brittleness or deformation of the old impeller.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes the product include the key?\u003c\/summary\u003e\n  \u003cp\u003eYes. This product is supplied as one impeller with one matching key. It is not a complete water-pump repair kit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes it include a water-pump housing or gasket set?\u003c\/summary\u003e\n  \u003cp\u003eNo. The package contains the impeller and key only. Inspect and replace other water-pump components separately as required by the service manual.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan it be used in saltwater?\u003c\/summary\u003e\n  \u003cp\u003eThe impeller is used in outboard cooling systems, but operating conditions affect service life. Flush the cooling system with fresh water after saltwater use and inspect the impeller regularly.\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 that references Yamaha 6L5-44352-00 and Sierra 18-8911 for identification and application comparison.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the exact engine model, year, stroke type and part reference before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not operate the engine without an adequate cooling-water supply.\u003c\/li\u003e\n  \u003cli\u003eReplace damaged gaskets, seals, wear plates or pump-housing components as required.\u003c\/li\u003e\n  \u003cli\u003eFollow the manufacturer’s service manual for lower-unit removal, torque values and reassembly.\u003c\/li\u003e\n  \u003cli\u003eThis listing is for an aftermarket impeller with key, not a complete water-pump kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine replacement parts\u003c\/strong\u003e — We supply aftermarket components for routine boat and outboard maintenance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-focused listings\u003c\/strong\u003e — Product references and fitment details are provided to support accurate part comparison.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomer support\u003c\/strong\u003e — When fitment is uncertain, provide the engine model, year and serial information before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723799433531,"sku":"17IY016K","price":17.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_with_Pin_for_Yamaha_2_25_3HP_6L5-44352-00_-_JLM_MARINE-8288854.jpg?v=1763032113"}],"url":"https:\/\/seasierra.com\/collections\/parsun-3hp-4-stroke-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}