{"title":"Johnson 2-Stroke 4.5HP Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eFor Johnson 2-Stroke 4.5HP outboard engines, this page helps you quickly find compatible parts and essential service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Johnson\/Evinrude\/OMC collection at any time. Scroll to the bottom of the page to start browsing parts for this engine, and remember you can use the “Filter \u0026amp; Sort” controls on the collection page to narrow by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\" style=\"display:inline-block; padding:10px 14px; background:#0ea5e9; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Johnson Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 4.5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the nameplate\/serial plate on the transom bracket or swivel bracket. It lists the model number and serial number.\u003c\/li\u003e\n    \u003cli\u003eRead the full model code and suffix: letters often indicate shaft length (short\/long) and other features; the serial can help pinpoint the production year.\u003c\/li\u003e\n    \u003cli\u003eConfirm the stroke type: these are carbureted 2-stroke models requiring proper fuel\/oil mix; check the cowl decals and the owner’s manual.\u003c\/li\u003e\n    \u003cli\u003eMeasure shaft length (approx. 15 in short, 20 in long) because propeller and gearcase parts may vary by shaft length.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eJohnson 4.5HP 2‑Stroke (Early 1980s Era)\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;\"\u003eSmall-displacement, carbureted 2-stroke outboard; portable, typically tiller-steer and manual start.\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;\"\u003eJohnson 4.5HP 2-stroke models (early 1980s). Verify by full model and serial number for exact parts.\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;\"\u003eLightweight, simple maintenance, easy to transport, reliable low-speed maneuvering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSome wear parts interchange with 4–6HP families, but impeller, propeller, and gearcase items can vary by year and shaft length—confirm by model\/serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for typical recreational use. Always follow the official service manual for your exact model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eGear Oil (Lower Unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eEvery season or 100 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eCheck for water intrusion and metal debris; replace drain plug gaskets as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\"\u003eJohnson\/Evinrude\/OMC Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eSpark Plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eInspect, clean, and gap; replace if fouled or worn.\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;\"\u003eInspect every 50 hours; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eReplace sooner if fuel contamination or storage issues are suspected.\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;\"\u003eEvery 2–3 seasons (or sooner with weak telltale)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eCritical for cooling; replace more often in sandy\/silty water.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-water-pump-repair-kits\"\u003eJohnson\/Evinrude\/OMC Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eAnodes (Corrosion Protection)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eInspect every 50 hours; replace when 50% worn\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eMatch anode material to your water type (fresh, brackish, salt).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-anodes\"\u003eJohnson\/Evinrude\/OMC Anodes\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;\"\u003eEvery 50 hours; before\/after season\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eCheck for dings and bent blades that can cause vibration and reduced thrust.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-propellers\"\u003eJohnson\/Evinrude\/OMC Propellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003e2‑Stroke Fuel\/Oil Mix\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEach refuel\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse the mix ratio specified in your owner’s manual; use fresh gasoline and TC‑W3 marine oil.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\"\u003eJohnson\/Evinrude\/OMC Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px; color:#6b7280;\"\u003e*Intervals are general guidelines and may vary by model year and usage.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service Kits — \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-service-maintenance-kits\"\u003eJohnson\/Evinrude\/OMC Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System — \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-water-pump-repair-kits\"\u003eWater Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals — \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-lower-unit-seal-kits\"\u003eLower Unit Seal Kits\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\u003eFuel System — \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion — \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-propellers\"\u003eJohnson\/Evinrude\/OMC Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection — \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-anodes\"\u003eJohnson\/Evinrude\/OMC Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eWeak telltale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eInspect intake screen for blockage; verify impeller condition; confirm thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eWater pump kit, impeller, thermostat, intake screen\/grommets\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 for damaged propeller, fouled plugs, stale fuel, and restricted fuel filter.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003ePropeller, spark plugs, fuel filter, carb gaskets\/cleaning kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eVerify choke\/primer function, plug gap, and for air leaks at fuel lines\/bulb.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eSpark plugs, fuel hoses, primer bulb, gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eExcessive smoke (2-stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eConfirm correct fuel\/oil mix ratio; check for misfire and thermostat stuck open.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eSpark plugs, thermostat, fuel\/oil mix supplies\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eDrain and inspect gear oil; look for water intrusion and damaged seals\/bearings.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seals, bearings, drain plug gaskets, gear oil\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or related 4–6HP platforms?\u003c\/summary\u003e\n    \u003cp\u003eMany wear items are shared across small Johnson\/Evinrude models, but cooling, propeller, and gearcase parts can vary by year, shaft length, and specific sub-model. Always confirm by full model and serial number.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eFor light recreational use, replace the impeller every 2–3 seasons. In sandy\/silty water, or if the telltale is weak or intermittent, service it sooner using a complete water pump kit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the lower unit gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eAt least once per season or every 100 hours. Inspect for milky appearance (water) or metal particles, which indicate seal or gear wear requiring further service.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm parts fitment?\u003c\/summary\u003e\n    \u003cp\u003ePlease provide the full model number, serial number, shaft length (short\/long), and any notable features (manual\/electric start). Photos of the nameplate and the part needed are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e7eb;\"\u003e\n  \u003cp\u003eReady to shop? Browse the main Johnson\/Evinrude\/OMC collection and use “Filter \u0026amp; Sort” to refine by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\" style=\"display:inline-block; padding:10px 14px; background:#10b981; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Johnson\/Evinrude\/OMC Parts\u003c\/a\u003e\n  \u003cp style=\"font-size:12px; color:#6b7280; margin-top:8px;\"\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":"carburetor-rebuild-kit-fits-johnson-evinrude-4-15-hp-replaces-439072-398453","title":"Carburetor Rebuild Kit for Johnson\/Evinrude 4–15 HP 2-Stroke Outboards – Replaces 439072 and 398453","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003ecarburetor rebuild kit\u003c\/strong\u003e is designed for selected Johnson\/Evinrude 4–15 HP 2-stroke outboard motors manufactured between 1974 and 1993. It provides replacement gaskets, packings, needle-and-seat assemblies, and related hardware to help restore carburetor sealing, fuel control, and reliable operation.\u003c\/p\u003e\n  \u003cp\u003eThe kit is listed as a replacement for Johnson\/Evinrude part numbers \u003cstrong\u003e439072, 398453, 398452, 391937, 391305, and 386698\u003c\/strong\u003e. Listed aftermarket cross-references include Sierra 18-7223, GLM 40550, Mallory 9-37101, and EMP 1300-01427. Confirm the part number and carburetor model before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eIncludes multiple needle-and-seat assemblies and gaskets for different carburetor configurations.\u003c\/li\u003e\n    \u003cli\u003eDesigned for manual installation with common hand tools.\u003c\/li\u003e\n    \u003cli\u003eReplacement components are intended for use with standard marine gasoline systems.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse the following references to compare the original and aftermarket numbers associated with this replacement kit.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e439072\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e398452\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e391937\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e391305\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e386698\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-7223\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e40550\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-37101\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eEMP\u003c\/td\u003e\n\u003ctd\u003e1300-01427\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm the engine brand, horsepower, stroke, model, and year before installation. The applications below are the listed compatibility references for this kit.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e4 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1983–1993\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e4.5 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1984, 1987\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e5 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1985\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e6 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1985\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e7.5 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1982–1983\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e8 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1985\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e9.9 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1974–1988\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e14 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1968\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e15 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1974–1988\u003c\/td\u003e\n\u003ctd\u003e398453\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003eApplication information can vary by exact model and carburetor configuration. Match the original carburetor part number and inspect the existing needle-and-seat arrangement before ordering.\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\u003eCarburetor rebuild kit\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Johnson\/Evinrude 4–15 HP 2-stroke outboard carburetors\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eManual installation with basic hand tools\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e22.7 g (0.8 oz)\u003c\/dd\u003e\n    \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003eStandard manufacturer warranty\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 × Sierra 18-7106 needle packing for high- and low-speed needles\u003c\/li\u003e\n    \u003cli\u003e1 × Sierra 18-7093 needle-and-seat assembly for 3R models only\u003c\/li\u003e\n    \u003cli\u003e1 × Sierra 18-7094 needle-and-seat assembly for 4RE and 4RL models only\u003c\/li\u003e\n    \u003cli\u003e1 × Sierra 18-2908 float bowl gasket\u003c\/li\u003e\n    \u003cli\u003e1 × float arm hinge pin\u003c\/li\u003e\n    \u003cli\u003e4 × gaskets\u003c\/li\u003e\n    \u003cli\u003e1 × spring clip\u003c\/li\u003e\n    \u003cli\u003e1 × packing washer\u003c\/li\u003e\n    \u003cli\u003e1 × valve O-ring\u003c\/li\u003e\n    \u003cli\u003e1 × shut-off valve roll pin\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The carburetor float is not included. If the original float is damaged or fuel-saturated, it must be purchased separately; the listed replacement reference is Sierra 18-7210.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery and remove the engine cowling.\u003c\/li\u003e\n    \u003cli\u003eTurn off the fuel supply and carefully disconnect the fuel line from the carburetor.\u003c\/li\u003e\n    \u003cli\u003eRemove the air silencer assembly to access the carburetor.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the throttle and choke linkages, noting their positions for reassembly.\u003c\/li\u003e\n    \u003cli\u003eUnbolt and gently remove the carburetor from the intake manifold.\u003c\/li\u003e\n    \u003cli\u003eDisassemble the carburetor on a clean workbench and organize the removed parts.\u003c\/li\u003e\n    \u003cli\u003eRemove and discard the old gaskets, seals, needle, and seat being replaced.\u003c\/li\u003e\n    \u003cli\u003eClean the metal carburetor components with a suitable carburetor cleaner, ensuring that jets and passages are clear.\u003c\/li\u003e\n    \u003cli\u003eInstall the kit components, matching the needle-and-seat assembly to the carburetor configuration.\u003c\/li\u003e\n    \u003cli\u003eReassemble the carburetor with the new float bowl gasket and seals.\u003c\/li\u003e\n    \u003cli\u003eReinstall the carburetor and reconnect the fuel lines and linkages.\u003c\/li\u003e\n    \u003cli\u003eReattach the air silencer, reconnect the battery, and test the engine. Adjust idle speed according to the engine service procedure if necessary.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm that this kit fits my engine?\u003c\/summary\u003e\n    \u003cp\u003eVerify the engine brand, horsepower, 2-stroke configuration, year, and carburetor part number against the compatibility table and part-number matrix. Because applications can vary by exact model, compare the original carburetor and needle-and-seat configuration before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this kit include the carburetor float?\u003c\/summary\u003e\n    \u003cp\u003eNo. The float is not included. A damaged or fuel-saturated float must be purchased separately; the listed replacement reference is Sierra 18-7210.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common signs that a carburetor needs rebuilding?\u003c\/summary\u003e\n    \u003cp\u003eSymptoms may include hard starting, rough or unstable idling, low-speed stalling, poor acceleration, black exhaust smoke, or visible fuel leakage around the carburetor.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich needle-and-seat assembly should I use?\u003c\/summary\u003e\n    \u003cp\u003eThe kit includes two configurations. Use the Sierra 18-7093 assembly for 3R models and the Sierra 18-7094 assembly for 4RE and 4RL models. Inspect the original carburetor and use only the matching component.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This listing is for an aftermarket replacement kit intended to replace the listed original and aftermarket reference numbers.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the shipping and return terms?\u003c\/summary\u003e\n    \u003cp\u003eTypical transit is 5–15 days, with standard shipping generally available at no additional charge. Expedited options, where available, are shown at checkout. Returns are accepted within the applicable standard return window when the item is unused and in its original condition.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat warranty is included?\u003c\/summary\u003e\n    \u003cp\u003eThe kit is covered by the applicable standard manufacturer warranty against manufacturing defects under normal use. Contact support with your order details if an issue occurs.\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\u003eCompare the original carburetor, part number, and component configuration before purchase.\u003c\/li\u003e\n    \u003cli\u003eDo not use this kit if the original parts differ from the listed application or configuration.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eWork in a well-ventilated area away from ignition sources and follow the engine manufacturer’s service procedures.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when you are not familiar with fuel-system service.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — Marine replacement parts selected for dependable fit and service in real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Standard delivery is available to most regions, with typical transit of 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Competitive pricing with attention to materials and quality control.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718269407547,"sku":"JCR-24-444","price":22.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/JCR-24-444.png?v=1762958669"},{"product_id":"fuel-pump-fits-johnson-evinrude-4-5-25hp-mercury-replaces-397839-391638-395091-397274-878965","title":"Fuel Pump Replacement for Select Johnson\/Evinrude 4.5–25 HP Applications – Cross-References 397839, 391638, 395091, 397274 and Mercury 878965","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eoutboard engine fuel pump\u003c\/strong\u003e is intended as a replacement for select Johnson\/Evinrude applications, including listed 4.5 HP, 6 HP, 8 HP, 9.9 HP, 15 HP, 20 HP and 25 HP models. Fitment depends on the exact engine model, year, stroke configuration and original pump, so compare the applicable part number and pump design before ordering.\u003c\/p\u003e\n\u003cp\u003eThe pump is listed as a replacement or cross-reference for Johnson\/Evinrude numbers \u003cstrong\u003e397839\u003c\/strong\u003e, \u003cstrong\u003e391638\u003c\/strong\u003e, \u003cstrong\u003e395091\u003c\/strong\u003e and \u003cstrong\u003e397274\u003c\/strong\u003e, as well as Mercury \u003cstrong\u003e878965\u003c\/strong\u003e. Additional aftermarket references include Sierra 18-7350, Mallory 9-35350, EMP 1399-07350, Redline RL7350 and Quicksilver 8M6010285. These references should be used together with a visual and application check; a number match alone does not confirm every engine configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement fuel pump for selected outboard applications.\u003c\/li\u003e\n  \u003cli\u003eDiaphragm-type pump design with barbed fuel-hose connections.\u003c\/li\u003e\n  \u003cli\u003eDesigned for replacement installation where the original pump, mounting pattern and hose connections match.\u003c\/li\u003e\n  \u003cli\u003eAftermarket component; not sold as a genuine OEM part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references to compare your existing fuel pump and engine documentation before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e391638\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e395091\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e397274\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e878965\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-7350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-35350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEMP\u003c\/td\u003e\n\u003ctd\u003e1399-07350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRedline\u003c\/td\u003e\n\u003ctd\u003eRL7350\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eQuicksilver\u003c\/td\u003e\n\u003ctd\u003e8M6010285\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eApplication information for this replacement pump is broad and may vary by exact model and production year. Keep the horsepower, year, stroke and model conditions together when checking fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJohnson\/Evinrude:\u003c\/strong\u003e The listed application range includes selected 4.5 HP, 6 HP, 8 HP, 9.9 HP, 15 HP, 20 HP and 25 HP outboards, with commonly cited model years from 1968 through 1992. The 20 HP and 25 HP applications should be treated as model-specific and verified against the original pump and engine parts information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMercury:\u003c\/strong\u003e The pump is cross-referenced to Mercury part number 878965, but a complete Mercury model list is not established here. Verify the exact Mercury model, year, mounting arrangement, hose connections and original part number before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eReference Part No.\u003c\/th\u003e\n\u003cth\u003eFitment Note\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eCommonly listed as 1968–1992\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original pump.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eApplication-specific\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eReported in some application listings; verify carefully.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003eVerify exact configuration\u003c\/td\u003e\n\u003ctd\u003eApplication-specific\u003c\/td\u003e\n\u003ctd\u003e397839\u003c\/td\u003e\n\u003ctd\u003eReported in some application listings; verify carefully.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e878965\u003c\/td\u003e\n\u003ctd\u003eCross-reference only; confirm the exact Mercury application.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eOutboard engine fuel pump\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement installation for matching applications\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n  \u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003ePump Design\u003c\/dt\u003e\n  \u003cdd\u003eDiaphragm-type fuel pump\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n  \u003cdd\u003eTwo barbed fuel-hose fittings\u003c\/dd\u003e\n  \u003cdt\u003eHousing Construction\u003c\/dt\u003e\n  \u003cdd\u003eMetal base with plastic or composite upper section\u003c\/dd\u003e\n  \u003cdt\u003eHousing Appearance\u003c\/dt\u003e\n  \u003cdd\u003eBlack with metal-colored accents\u003c\/dd\u003e\n  \u003cdt\u003eApproximate Weight\u003c\/dt\u003e\n  \u003cdd\u003e0.25 kg (0.55 lb), where applicable\u003c\/dd\u003e\n  \u003cdt\u003eFitment Requirement\u003c\/dt\u003e\n  \u003cdd\u003eOriginal pump number, mounting holes, hose routing and pump configuration must match.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Fuel pump assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Mounting gasket, where included with the applicable package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2\u003c\/span\u003e x Cable ties, only where included in the applicable aftermarket package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackage contents can vary by supplier or package configuration. Confirm the supplied contents before installation, and do not assume that optional accessories are included unless shown or stated with the order.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and observe all fuel-system safety precautions before beginning work.\u003c\/li\u003e\n  \u003cli\u003eLabel the inlet and outlet fuel lines, then disconnect them from the old pump.\u003c\/li\u003e\n  \u003cli\u003eRemove the fasteners and take the old fuel pump off the engine block.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surface and remove old gasket material without damaging the sealing surface.\u003c\/li\u003e\n  \u003cli\u003eInstall the correct new gasket if one is supplied or specified for the application.\u003c\/li\u003e\n  \u003cli\u003ePosition the replacement pump with the correct orientation and align the mounting holes.\u003c\/li\u003e\n  \u003cli\u003eTighten the mounting fasteners to the engine manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReconnect the fuel lines to the correct inlet and outlet fittings and secure them properly.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery, prime the fuel system according to the service manual and inspect for leaks before starting the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAlways follow the engine manufacturer's service information. If the mounting pattern, hose routing or pump orientation differs from the original, stop and verify compatibility before installation.\u003c\/p\u003e\n\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm that this fuel pump fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eCompare the original pump's manufacturer number with the reference list, then verify the exact engine brand, model, year, horsepower, stroke configuration, mounting pattern, hose connections and pump orientation. For Mercury applications, the 878965 cross-reference should not be treated as a complete model list.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a failing fuel pump?\u003c\/summary\u003e\n  \u003cp\u003ePossible symptoms include hard starting, sputtering, stalling, loss of power, inconsistent operation at higher speed and poor fuel delivery. These symptoms can also be caused by blocked filters, damaged fuel lines, carburetor problems or other fuel-system faults, so diagnose the complete system before replacing the pump.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the pump be replaced?\u003c\/summary\u003e\n  \u003cp\u003eThere is no universal replacement interval for this type of pump. Inspect it when fuel delivery problems occur, during fuel-system service or when the pump, gasket or connected hoses show signs of damage, leakage or deterioration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs a gasket included?\u003c\/summary\u003e\n  \u003cp\u003eA gasket may be included with the applicable package, but package contents can vary. Confirm the product package before installation and use the correct gasket for the engine application.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing describes an aftermarket replacement fuel pump. The manufacturer and aftermarket reference numbers are provided for comparison and application research; they do not change the component's aftermarket status.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if the pump does not match my old part?\u003c\/summary\u003e\n  \u003cp\u003eDo not force the installation or modify the pump, gasket or fuel lines. Recheck the engine model and original part number, and contact support before installation if the mounting pattern, connections or orientation differ.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWork in a well-ventilated area away from open flames, sparks and ignition sources.\u003c\/li\u003e\n  \u003cli\u003eRelieve fuel-system pressure where applicable and prevent spilled fuel from contacting hot engine surfaces.\u003c\/li\u003e\n  \u003cli\u003eVerify the images, dimensions, connections and reference numbers against the original pump before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not rely on horsepower alone to establish fitment; exact model, year, stroke and serial or production conditions may apply.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not a genuine OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when the correct application or fuel-system procedure is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — We offer replacement components for a range of marine repair applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Support\u003c\/strong\u003e — Compare original part numbers and engine details before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValue-Oriented Selection\u003c\/strong\u003e — Aftermarket alternatives are presented with applicable reference information to support informed purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718272258363,"sku":"OE-BF1O-T0MP","price":31.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/OE-BF1O-T0MP.png?v=1762958772"},{"product_id":"water-pump-impeller-kit-fits-johnson-evinrude-4-8-hp-replaces-396644-389844","title":"Water Pump Impeller Kit Without Housing – Fits Johnson\/Evinrude 4–8 HP 2-Stroke Outboards – Replaces 396644","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller Kit\u003c\/strong\u003e is an aftermarket cooling-system service kit for selected Johnson\/Evinrude 2-stroke outboard engines from 4 to 8 HP. It is supplied \u003cstrong\u003ewithout the water-pump housing\u003c\/strong\u003e and is intended to replace the service components inside the existing compatible pump housing.\u003c\/p\u003e\n  \u003cp\u003eThe kit replaces Johnson\/Evinrude\/OMC OEM part number \u003cstrong\u003e396644\u003c\/strong\u003e and corresponds to Sierra part number \u003cstrong\u003e18-4529\u003c\/strong\u003e. The documented fitment covers specific 4 HP, 5 HP, 6 HP, and 8 HP applications; verify the engine model, year, and existing pump components before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eIncludes the impeller assembly, impeller housing plate, impeller housing cup, gaskets, O-ring, grommets, drive key, and screws.\u003c\/li\u003e\n    \u003cli\u003eDesigned for service of the existing compatible water-pump housing; the housing itself is not included.\u003c\/li\u003e\n    \u003cli\u003eSuitable for the listed gasoline-powered Johnson\/Evinrude marine outboard applications.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse the following verified reference numbers when comparing the replacement kit with your existing parts.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand or Catalog\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n          \u003cth\u003eReference\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude\/OMC\u003c\/td\u003e\n          \u003ctd\u003e396644\u003c\/td\u003e\n          \u003ctd\u003eOEM replacement reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-4529\u003c\/td\u003e\n          \u003ctd\u003eWater pump kit without housing\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eFitment is based on the documented Johnson\/Evinrude 2-stroke applications below. Model names and production details can vary, so compare your engine identification label and existing water-pump components 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\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eOEM Reference\u003c\/th\u003e\n          \u003cth\u003eHousing\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n          \u003ctd\u003e4\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1986–1992\u003c\/td\u003e\n          \u003ctd\u003e396644\u003c\/td\u003e\n          \u003ctd\u003eNot included\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n          \u003ctd\u003e5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1980–1983; 1996–2001\u003c\/td\u003e\n          \u003ctd\u003e396644\u003c\/td\u003e\n          \u003ctd\u003eNot included\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n          \u003ctd\u003e6\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1984–2001; 2003–2005\u003c\/td\u003e\n          \u003ctd\u003e396644\u003c\/td\u003e\n          \u003ctd\u003eNot included\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n          \u003ctd\u003e8\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1980–2001; 2003–2005\u003c\/td\u003e\n          \u003ctd\u003e396644\u003c\/td\u003e\n          \u003ctd\u003eNot included\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\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eWater pump impeller kit without housing\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected Johnson\/Evinrude 2-stroke outboards, 4–8 HP\u003c\/dd\u003e\n    \u003cdt\u003eOEM Replacement Reference\u003c\/dt\u003e\n    \u003cdd\u003e396644\u003c\/dd\u003e\n    \u003cdt\u003eAftermarket Catalog Reference\u003c\/dt\u003e\n    \u003cdd\u003eSierra 18-4529\u003c\/dd\u003e\n    \u003cdt\u003eHousing\u003c\/dt\u003e\n    \u003cdd\u003eNot included; reuse the existing compatible housing\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eReplacement of compatible water-pump service components\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n    \u003cdd\u003eGasoline marine outboard engines\u003c\/dd\u003e\n    \u003cdt\u003ePackage Contents\u003c\/dt\u003e\n    \u003cdd\u003eImpeller assembly, plate, cup, gasket, O-ring, grommets, drive key, and screws\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 × Drive Key — aftermarket reference 18-3026; OEM reference 331130\u003c\/li\u003e\n    \u003cli\u003e1 × Grommet — aftermarket reference 18-1827; OEM reference 321129\u003c\/li\u003e\n    \u003cli\u003e1 × Grommet — aftermarket reference 18-3329; OEM reference 302497\u003c\/li\u003e\n    \u003cli\u003e4 × Screws — aftermarket reference 18-4277; OEM reference 324430\u003c\/li\u003e\n    \u003cli\u003e1 × Impeller Housing Plate — aftermarket reference 18-4578; OEM reference 324640\u003c\/li\u003e\n    \u003cli\u003e1 × Impeller Housing Cup — aftermarket reference 18-4551; OEM reference 324641\u003c\/li\u003e\n    \u003cli\u003e2 × Impeller Housing Gaskets — aftermarket reference 18-99156; OEM reference 325040\u003c\/li\u003e\n    \u003cli\u003e1 × Impeller Assembly — aftermarket reference 18-3091; OEM reference 389576\u003c\/li\u003e\n    \u003cli\u003e1 × O-Ring — aftermarket reference 18-7413; OEM reference 303191\u003c\/li\u003e\n    \u003cli\u003e\u003cstrong\u003eWater-pump housing not included.\u003c\/strong\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eFor safety, stop the engine, disconnect the battery where applicable, and remove the spark plug wires before servicing.\u003c\/li\u003e\n    \u003cli\u003ePlace the outboard transmission in neutral and remove the fasteners securing the lower unit.\u003c\/li\u003e\n    \u003cli\u003eCarefully lower and separate the gearcase from the upper section, taking care not to damage the shift shaft or water tube.\u003c\/li\u003e\n    \u003cli\u003eLocate the water-pump assembly on top of the gearcase and remove the housing fasteners.\u003c\/li\u003e\n    \u003cli\u003eRemove the old impeller, drive key, gaskets, O-ring, plate, cup, and related service components as applicable.\u003c\/li\u003e\n    \u003cli\u003eInspect the existing housing for cracks, scoring, distortion, or excessive wear. Replace the housing if it is not serviceable.\u003c\/li\u003e\n    \u003cli\u003eClean all mating surfaces and remove old gasket material and debris.\u003c\/li\u003e\n    \u003cli\u003eInstall the new plate, gaskets, O-ring, drive key, and impeller. Apply only the lubricant recommended by the engine or service-manual instructions.\u003c\/li\u003e\n    \u003cli\u003eFit the impeller into the existing compatible housing, rotating the driveshaft in the specified direction so the vanes seat correctly.\u003c\/li\u003e\n    \u003cli\u003eReinstall the housing and tighten the fasteners to the engine manufacturer's specified torque.\u003c\/li\u003e\n    \u003cli\u003eReattach the lower unit, ensuring the driveshaft, shift shaft, and water tube are properly aligned.\u003c\/li\u003e\n    \u003cli\u003eRun the engine in an appropriate water supply and confirm a steady cooling-water tell-tale stream before normal operation.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this kit fits my specific engine?\u003c\/summary\u003e\n    \u003cp\u003eConfirm that your Johnson\/Evinrude outboard is one of the listed 2-stroke 4–8 HP applications and that your existing water-pump components correspond to OEM reference 396644 or Sierra reference 18-4529. Check the exact model and year on the engine identification label before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this kit include the water-pump housing?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is a water-pump service kit without housing. It includes the listed internal service components and is intended for use with the existing compatible housing.\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 intermittent tell-tale stream, overheating, steam from the exhaust, or visible cracking, brittleness, or permanently curved impeller vanes. Inspect the housing and related components at the same time.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eInspect the water-pump components during routine seasonal maintenance and replace the impeller when the vanes show wear, cracking, hardening, or permanent deformation. Service intervals should follow the engine manufacturer's recommendations and operating conditions.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is for an aftermarket replacement kit. The listed OEM and catalog numbers are provided as compatibility references only and do not indicate that the replacement is manufactured by Johnson, Evinrude, or OMC.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I reuse my old water-pump housing?\u003c\/summary\u003e\n    \u003cp\u003eThe housing may be reused only if it is the correct compatible housing and passes inspection. Do not reuse a housing that is cracked, warped, heavily scored, or excessively worn.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the return policy?\u003c\/summary\u003e\n    \u003cp\u003eReturn eligibility and timing depend on the current store policy. Review the applicable policy before installation; installed, used, or damaged parts may have different return conditions.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the engine model, year, horsepower, stroke, and existing part numbers before purchase.\u003c\/li\u003e\n    \u003cli\u003eVerify that your original housing and related components match the kit configuration.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement kit, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eFollow the engine service manual for torque values, lubricants, alignment procedures, and testing.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when lower-unit or water-pump service procedures are unfamiliar.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\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 — Practical aftermarket components for routine outboard maintenance and repair.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFitment-Focused Listings\u003c\/strong\u003e — Reference numbers and application details are provided to help customers compare their existing parts.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupport Before Installation\u003c\/strong\u003e — Confirm compatibility before installing or modifying the part.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968581947,"sku":"23KO456GH","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/23KO456GH.png?v=1763038721"},{"product_id":"water-pump-impeller-kit-fits-johnson-evinrude-4-8-hp-replaces-396644-0396644-18-4529","title":"Water Pump Impeller Kit – Fits Johnson\/Evinrude 4–8 HP (Replaces 396644, 0396644, 18-4529)","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller Kit\u003c\/strong\u003e is a replacement service kit for selected Johnson\/Evinrude 4–8 HP 2-Stroke outboards from 1980–2005 and selected 5–6 HP 4-Stroke 128cc models from 1998–2004. It is designed to replace the water-pump wear components needed to restore reliable cooling performance when the original housing remains serviceable.\u003c\/p\u003e\n\u003cp\u003eThis kit provides an aftermarket interchange for Johnson\/Evinrude 396644 and 0396644, Sierra 18-4529, and GLM 12255. Always compare the engine model, year, original part number, and existing pump components before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned to fit the original water-pump housing listed for the applicable engine applications.\u003c\/li\u003e\n  \u003cli\u003eDurable marine-service materials help resist normal wear and corrosion.\u003c\/li\u003e\n  \u003cli\u003eIncludes an impeller, pump cup, wear plate, gaskets, O-ring, grommets, drive key, and screws for a comprehensive pump service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following references to compare equivalent part numbers across suppliers.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e0396644\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-4529\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e12255\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm the exact engine model, horsepower, stroke type, and year before installation. The following applications are the listed compatibility range for this replacement kit.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1992\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1984\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e4 Deluxe\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1985–1988\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1983, 1996–2001\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–2001, 2003–2005\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke (128cc)\u003c\/td\u003e\n\u003ctd\u003e1998–2004\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke (128cc)\u003c\/td\u003e\n\u003ctd\u003e1998–2004\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–2001, 2003–2005\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003ctd\u003e\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 kit without the main pump housing\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement service kit for the original compatible housing\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n  \u003cdd\u003eVehicle-specific fit\u003c\/dd\u003e\n  \u003cdt\u003eMaterials\u003c\/dt\u003e\n  \u003cdd\u003eMarine-service materials\u003c\/dd\u003e\n  \u003cdt\u003ePackage Dimensions\u003c\/dt\u003e\n  \u003cdd\u003e4.29 × 3.82 × 2.24 inches (109 × 97 × 57 mm)\u003c\/dd\u003e\n  \u003cdt\u003ePackage Weight\u003c\/dt\u003e\n  \u003cdd\u003e6.2 ounces (176 g)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Impeller (389576)\u003c\/li\u003e\n  \u003cli\u003e1 × Pin\/drive key (300611)\u003c\/li\u003e\n  \u003cli\u003e1 × Pump cup\/impeller housing cup (324641)\u003c\/li\u003e\n  \u003cli\u003e1 × Wear plate (324640)\u003c\/li\u003e\n  \u003cli\u003e2 × Gaskets (325040)\u003c\/li\u003e\n  \u003cli\u003e1 × O-ring (303191)\u003c\/li\u003e\n  \u003cli\u003e2 × Grommets (302497 and 321129)\u003c\/li\u003e\n  \u003cli\u003e4 × Screws (324430)\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 shift the outboard into neutral.\u003c\/li\u003e\n  \u003cli\u003eRemove the bolts securing the lower unit to the engine leg, then carefully lower the gearcase.\u003c\/li\u003e\n  \u003cli\u003eLocate the water-pump housing on top of the gearcase and remove its mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eSlide the housing up and off the driveshaft to expose the impeller. Note the direction in which the old impeller fins are bent.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller, gaskets, wear plate, and drive key. Clean the mating surfaces thoroughly.\u003c\/li\u003e\n  \u003cli\u003eInstall the new wear plate, gaskets, and drive key.\u003c\/li\u003e\n  \u003cli\u003eApply a light coat of water-resistant marine grease to the inside of the new pump cup.\u003c\/li\u003e\n  \u003cli\u003eInstall the new impeller on the driveshaft while turning the shaft in the correct direction to seat the fins.\u003c\/li\u003e\n  \u003cli\u003eReinstall the pump cup and housing, tightening the bolts to the engine manufacturer’s recommended torque.\u003c\/li\u003e\n  \u003cli\u003eReattach the lower unit, making sure the driveshaft and water tube are correctly aligned.\u003c\/li\u003e\n  \u003cli\u003eStart the engine in water after assembly and confirm a steady stream from the tell-tale outlet.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this kit fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eCompare your engine brand, exact model, horsepower, stroke type, and year with the compatibility table. Confirming the original water-pump part number, including 396644 or 0396644, is also recommended. Do not rely on horsepower alone when confirming fitment.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace the water-pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eAs a general maintenance guideline, inspect the impeller annually and replace it every 1–2 years or 100–200 operating hours, whichever comes first. More frequent service may be appropriate when operating in sandy, silty, or saltwater conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include a weak or inconsistent tell-tale stream, an overheating alarm, higher-than-normal operating temperature, or visible cracking, distortion, or missing pieces on the impeller fins.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this kit include the entire water-pump housing?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is an impeller service kit and does not include the main upper and lower pump housing. It is intended for use with a functional, undamaged original housing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat tools are required for installation?\u003c\/summary\u003e\n  \u003cp\u003eA standard set of marine mechanic’s tools may be required, including socket and ratchet sets, screwdrivers, pliers, and a torque wrench. Water-resistant marine grease is also recommended for installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is for an aftermarket replacement kit. The listed OEM and aftermarket part numbers are provided as reference numbers for fitment comparison.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow quickly is the order shipped?\u003c\/summary\u003e\n  \u003cp\u003eStandard shipping is free, and typical transit time is 5–15 days. Expedited shipping options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the warranty and return terms?\u003c\/summary\u003e\n  \u003cp\u003eThe product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window when the item is unused and in its original condition. Contact support with your order details for assistance.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm the engine model, year, stroke type, horsepower, and original part number before ordering.\u003c\/li\u003e\n  \u003cli\u003eCompare the replacement components with the original parts before installation. If the components differ, do not install them until fitment is confirmed.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement kit, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when servicing the lower unit or water-pump assembly.\u003c\/li\u003e\n  \u003cli\u003eNever operate the outboard without adequate water supply. After installation, verify cooling-water flow before normal use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts designed for dependable service in real-world operating conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing with attention to materials and quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968647483,"sku":"23KO457OC","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/23KO457OC.png?v=1763038722"},{"product_id":"water-pump-impeller-fits-johnson-evinrude-4-8-hp-replaces-389576-433914-436137-777822","title":"Water Pump Impeller Kit for Johnson\/Evinrude 4–8 HP Outboards – Replaces 389576, 433914, 436137 and 777822","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis replacement \u003cstrong\u003eWater Pump Impeller Kit for Johnson\/Evinrude 4–8 HP Outboards\u003c\/strong\u003e is designed for use with a range of Johnson\/Evinrude 4–8 HP 2-stroke outboards from 1980–2005, along with select 5–8 HP 4-stroke applications from 1980 onward. It helps restore water-pump performance and maintain proper engine cooling.\u003c\/p\u003e\n\u003cp\u003eThe impeller provides a replacement option for OEM references 389576, 433914, 436137, 777822 and 778225, as well as selected aftermarket references from Sierra, Mallory, GLM Marine and CEF. Confirm your exact engine model, year and original part number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement water-pump impeller kit for selected Johnson\/Evinrude outboards.\u003c\/li\u003e\n  \u003cli\u003eNeoprene rubber impeller with a brass center hub for marine service.\u003c\/li\u003e\n  \u003cli\u003eKit includes the impeller, impeller key and gasket\/seal for a complete water-pump service.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended.\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 your original component. Cross-reference numbers are provided for identification; verify fitment against your specific engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e389576\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e436137\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e777822\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e778225\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3091\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-45214\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM Marine\u003c\/td\u003e\n\u003ctd\u003e89500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCEF\u003c\/td\u003e\n\u003ctd\u003e500354\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCEF\u003c\/td\u003e\n\u003ctd\u003e500358\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 depends on the exact model, year and engine configuration. Match your original impeller and part number before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1992\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard Deluxe\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1997\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1997\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–2001\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998 and up\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–2005\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998 and up\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1997\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eOutboard\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–2005\u003c\/td\u003e\n\u003ctd\u003e389576 \/ 433914\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 kit\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eNeoprene rubber\u003c\/dd\u003e\n  \u003cdt\u003eCenter Hub\u003c\/dt\u003e\n\u003cdd\u003eBrass\u003c\/dd\u003e\n  \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n  \u003cdt\u003eOverall Diameter\u003c\/dt\u003e\n\u003cdd\u003e38.4 mm (1.51 in)\u003c\/dd\u003e\n  \u003cdt\u003eHeight\u003c\/dt\u003e\n\u003cdd\u003e17.9 mm (0.70 in)\u003c\/dd\u003e\n  \u003cdt\u003eShaft Size\u003c\/dt\u003e\n\u003cdd\u003e11.2 mm (0.44 in)\u003c\/dd\u003e\n  \u003cdt\u003eListed Weight\u003c\/dt\u003e\n\u003cdd\u003e34 g (1.05 oz)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Water pump impeller\u003c\/li\u003e\n  \u003cli\u003e1 × Impeller key\u003c\/li\u003e\n  \u003cli\u003e1 × Gasket\/seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and make sure the engine is switched off and cool.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit or gearcase according to the engine manufacturer’s service procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the water-pump housing cover to access the impeller.\u003c\/li\u003e\n  \u003cli\u003eNote the existing blade orientation, then remove the old impeller from the driveshaft.\u003c\/li\u003e\n  \u003cli\u003eRemove the old key and gasket. Clean the housing and mating surfaces, removing debris and corrosion.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement gasket and key in their correct positions.\u003c\/li\u003e\n  \u003cli\u003eSlide the new impeller onto the driveshaft and rotate it in the normal direction of engine operation so the blades are correctly oriented.\u003c\/li\u003e\n  \u003cli\u003eReinstall the water-pump housing and tighten the fasteners to the manufacturer’s specifications.\u003c\/li\u003e\n  \u003cli\u003eReattach the lower unit and secure all connections. Test the engine with an appropriate water supply to confirm proper cooling-water flow.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this impeller fits my exact engine?\u003c\/summary\u003e\u003cp\u003eMatch your original impeller and OEM part number with the references in the Part Number Matrix, then compare the engine model, horsepower, stroke and year with the compatibility table. If the information does not match exactly, consult the engine service manual or confirm the model and serial number with a qualified marine-parts specialist.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include weak or missing water flow from the tell-tale outlet, an overheating alarm, elevated operating temperature or reduced performance. A worn impeller may also have cracked, hardened, deformed or missing blades.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\u003cp\u003eInspect the impeller during regular maintenance and replace it according to the engine manufacturer’s service schedule. Replacement intervals depend on operating hours, storage conditions and whether the engine is used in saltwater, freshwater or sandy water.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eAre the key and gasket included?\u003c\/summary\u003e\u003cp\u003eYes. This listing is for a kit containing one water-pump impeller, one impeller key and one gasket\/seal.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement kit intended to replace the listed OEM and aftermarket references. It is not manufactured by Johnson or Evinrude.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I do if my original part looks different?\u003c\/summary\u003e\u003cp\u003eDo not install the part if the dimensions, hub, keyway or blade configuration differ from your original component. Confirm the complete engine model and original part number before purchase or installation.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, year, horsepower, stroke and original part number before ordering.\u003c\/li\u003e\n  \u003cli\u003eCompare the replacement’s dimensions and configuration with the original part before installation.\u003c\/li\u003e\n  \u003cli\u003eAlways follow the engine manufacturer’s service procedures and torque specifications.\u003c\/li\u003e\n  \u003cli\u003eNever operate the outboard without an adequate water supply.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — Marine replacement parts selected for dependable real-world service.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Standard delivery options are available to most regions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Competitive pricing with attention to materials and quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968713019,"sku":"436137QM","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/436137QM.png?v=1763038726"},{"product_id":"water-pump-impeller-kit-fits-johnson-evinrude-4-4-5-5-6-8-hp-replaces-396644-389844","title":"Water Pump Impeller Kit for Johnson\/Evinrude 4, 4.5, 5, 6 and 8 HP Outboards – Replaces 396644, 389844 and 765603","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller repair kit\u003c\/strong\u003e is designed for selected Johnson and Evinrude outboard motors. Listed applications include specific 2-stroke models rated at 4 HP (1986–1992), 4.5 HP (1980–1997), 5 HP (1980–1983 and 1996–1998), 6 HP (1984–2005), and 8 HP (1980–2005). It also covers selected 4-stroke models rated at 5 HP (1999–2001) and 6 HP (1999–2004).\u003c\/p\u003e\n\u003cp\u003eThe kit is listed as a replacement for Johnson\/Evinrude part numbers \u003cstrong\u003e396644\u003c\/strong\u003e, \u003cstrong\u003e389844\u003c\/strong\u003e, and \u003cstrong\u003e765603\u003c\/strong\u003e, as well as Sierra reference \u003cstrong\u003e18-4529\u003c\/strong\u003e. Always compare the engine model, year, original part number, and existing water-pump components before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket replacement for the listed water-pump applications.\u003c\/li\u003e\n  \u003cli\u003eIncludes the impeller, housing components, gaskets, grommets, key, screws, and related service parts listed below.\u003c\/li\u003e\n  \u003cli\u003eHelps restore water circulation and cooling-system performance when the original pump components are worn.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these references to compare the replacement with the part number from your original water-pump assembly or service documentation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e396644\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e389844\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e765603\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-4529\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm the engine brand, model, horsepower, stroke type, and year before purchase. The compatibility ranges below are application guides; model and serial-number details should also be checked against the engine identification plate and service information.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eReference Part No.\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1992\u003c\/td\u003e\n\u003ctd\u003e396644, 389844\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1997\u003c\/td\u003e\n\u003ctd\u003e396644, 389844\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1983, 1996–1998\u003c\/td\u003e\n\u003ctd\u003e396644, 389844\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999–2001\u003c\/td\u003e\n\u003ctd\u003e396644, 389844\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–2005\u003c\/td\u003e\n\u003ctd\u003e396644, 389844\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999–2004\u003c\/td\u003e\n\u003ctd\u003e396644, 389844\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–2005\u003c\/td\u003e\n\u003ctd\u003e396644, 389844\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump impeller repair kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement for the listed applications\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n  \u003cdd\u003ePlastic\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n  \u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n  \u003cdd\u003eApproximately 0.17 kg (6.2 oz)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Drive key — 331130, 18-3026\u003c\/li\u003e\n  \u003cli\u003e1 × Grommet — 321129, 18-1827\u003c\/li\u003e\n  \u003cli\u003e1 × Grommet — 302497, 18-3329\u003c\/li\u003e\n  \u003cli\u003e1 × Screw set — 324430, 18-4277\u003c\/li\u003e\n  \u003cli\u003e1 × Impeller housing plate — 324640, 18-4578\u003c\/li\u003e\n  \u003cli\u003e1 × Impeller housing cup — 324641, 18-4551\u003c\/li\u003e\n  \u003cli\u003e1 × Impeller housing gasket — 325040, 18-99156\u003c\/li\u003e\n  \u003cli\u003e1 × Impeller assembly — 389576, 18-3091\u003c\/li\u003e\n  \u003cli\u003e1 × O-ring — 303191, 18-7413\u003c\/li\u003e\n  \u003cli\u003e1 × Gasket — 311598\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and follow the engine manufacturer’s safety procedure before beginning service.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower-unit fasteners and carefully separate the lower unit from the upper housing.\u003c\/li\u003e\n  \u003cli\u003eLocate and remove the water-pump housing bolts and the existing pump components.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surfaces and remove old gasket material, debris, and corrosion.\u003c\/li\u003e\n  \u003cli\u003eInstall the gasket, wear plate, impeller with drive key, and housing cup. Confirm that the impeller is seated correctly and that the vanes are oriented in the proper direction for installation.\u003c\/li\u003e\n  \u003cli\u003eApply suitable marine grease or assembly lubricant where recommended by the engine manufacturer, including applicable housing surfaces and bolt threads.\u003c\/li\u003e\n  \u003cli\u003eSecure the housing assembly with the supplied screws and tighten them according to the manufacturer’s specified torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, making sure the driveshaft and water tube are correctly aligned.\u003c\/li\u003e\n  \u003cli\u003eTest the engine in an appropriate water supply and confirm water flow from the tell-tale outlet before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this kit fits my specific model?\u003c\/summary\u003e\n  \u003cp\u003eMatch your engine’s brand, model, horsepower, stroke type, and year with the compatibility table. Also compare the part number from the existing water-pump assembly or service manual with the listed references: 396644, 389844, 765603, and Sierra 18-4529. If the model or component details differ, verify fitment before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include weak or absent water flow from the tell-tale outlet, overheating, and visible damage such as cracked, brittle, distorted, or missing impeller vanes. A worn housing, plate, or gasket can also reduce pump performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the water-pump impeller be replaced?\u003c\/summary\u003e\n  \u003cp\u003eInspect the impeller during routine maintenance and replace it when the vanes show wear, hardening, cracking, deformation, or damage. Replacement intervals depend on operating hours, storage conditions, and whether the engine is used in saltwater, sandy water, or other debris-containing environments.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a complete kit, or do I need other parts?\u003c\/summary\u003e\n  \u003cp\u003eThis listing includes the impeller, housing components, plate, gaskets, grommets, drive key, screws, and other parts listed in the package-contents section. Confirm the supplied components against your engine’s service requirements before starting the repair, because additional parts may be required if other lower-unit or cooling-system components are damaged.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs the included housing necessary to replace?\u003c\/summary\u003e\n  \u003cp\u003eThe housing should be inspected whenever the impeller is replaced. Scoring, warping, excessive wear, heat damage, or debris damage can prevent proper sealing and reduce water-pump performance. Replacing worn housing components with the impeller helps provide a proper repair.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between an OEM part and this aftermarket replacement?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is for an aftermarket replacement rather than an original-equipment part. It is intended for the applications and reference numbers listed on this page. Compare the original component and confirm the engine details before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the shipping speed and cost?\u003c\/summary\u003e\n  \u003cp\u003eStandard shipping is offered at no additional charge where available. Typical transit is 5–15 days, while expedited options and delivery estimates are shown at checkout based on the destination.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n  \u003cp\u003eReturns are subject to the applicable store policy and normally require the item to be unused and in its original condition. Contact customer support with your order details if you receive a damaged or incorrect item or if a manufacturing issue occurs.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, year, horsepower, stroke type, and original part number before purchase.\u003c\/li\u003e\n  \u003cli\u003eCompare the replacement components with the original water-pump assembly before installation. Do not proceed if the parts differ in a way that affects fit or operation.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement component and is not manufactured as an original-equipment manufacturer part.\u003c\/li\u003e\n  \u003cli\u003eFollow the engine manufacturer’s service procedures and torque specifications. Professional installation is recommended when lower-unit service experience is limited.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts selected for dependable fit and service performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — We offer standard delivery to most regions, with estimated transit times shown during checkout.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We work with manufacturing partners to provide practical replacement solutions for marine maintenance and repair.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968745787,"sku":"23KO457GH","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/23KO457GH.png?v=1763038728"}],"url":"https:\/\/seasierra.com\/collections\/johnson-2-stroke-4-5hp-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}