{"title":"Johnson 2-Stroke 6.5HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width: 900px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eThis page focuses on Johnson 2-Stroke 6.5HP outboard engines and helps you quickly find compatible parts and practical service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Johnson\/Evinrude collection for broader coverage. Scroll to the bottom of this page to start browsing parts for this engine, and remember you can use the Filter \u0026amp; Sort controls on the collection page to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude\" style=\"display:inline-block; padding:10px 16px; background:#0a6cff; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Johnson\/Evinrude Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width: 900px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 6.5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial plate on the transom bracket or swivel bracket. Record the model number, serial number, and any suffix letters.\u003c\/li\u003e\n    \u003cli\u003eRead the model code: suffixes commonly indicate shaft length (S\/L), starting method (rope vs. electric), and production year\/revision.\u003c\/li\u003e\n    \u003cli\u003eConfirm 2-stroke configuration: most 6–6.5HP Johnson models are small carbureted 2-strokes; some parts vary by ignition type (magneto vs. CDI) and by year.\u003c\/li\u003e\n    \u003cli\u003eMatch parts by model and serial: even small changes (impeller style, carburetor variant, or driveshaft seal dimensions) can affect compatibility.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width: 900px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003eJohnson 6–6.5HP 2‑Stroke Portable Platform\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSmall, carbureted 2-stroke portable outboard (typically single- or twin-cylinder), tiller-steer, water-cooled via impeller.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e6–6.5HP Johnson 2‑Stroke outboards across multiple year ranges; verify exact model\/serial for parts matching.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eLightweight and portable, simple maintenance, reliable low‑speed thrust for dinghies, tenders, and small skiffs.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eIgnition and cooling components can vary by year. Always cross‑reference your model number and use parts diagrams when available.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"max-width: 900px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for small 2‑stroke outboards. Always follow your official service manual for the most accurate procedures and schedules.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eGear Oil (Lower Unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect for water intrusion; replace drain screw gaskets; service seals if milky oil is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-lower-unit-seal-kits\"\u003eJohnson\/Evinrude\/OMC Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark Plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect every season; replace 100 hours or as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eUse the correct heat range and gap per manual for easy starting and smooth idle.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plug\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eFuel Filter \/ Inline Filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect every 50 hours; replace annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eReplace sooner if using ethanol fuel or if debris is present.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWater Pump Impeller \/ Kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 2–3 seasons or 200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eShorten interval for sandy, silty, or weedy waters; restore tell‑tale flow and cooling performance.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eAnodes (External\/Lower Unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eUse the correct alloy for your water (fresh, brackish, or salt); ensure clean metal‑to‑metal contact.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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;\"\u003e2‑Stroke Fuel\/Oil Mix\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery fill‑up\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eMany 6–6.5HP models use a 50:1 premix (verify in your manual). If equipped with oil injection, service the system and lines per schedule.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude\"\u003eJohnson\/Evinrude Collection\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:#555; margin-top:8px;\"\u003e*Intervals are typical guidelines; confirm specifics for your exact model and operating conditions.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width: 900px; margin: 0 auto; 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\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropellers \u0026amp; Hardware: \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-propellers\"\u003eJohnson\/Evinrude\/OMC Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit \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\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width: 900px; margin: 0 auto; 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 #ddd; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWeak tell‑tale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect intake screen for debris; confirm impeller condition; verify thermostat operation if equipped.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCheck fuel freshness and primer bulb; confirm choke\/enrichment; inspect spark plugs and plug wires; look for air leaks.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs, inline fuel filter, carburetor kit, ignition components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eExamine prop for damage\/cavitation; check for clogged jets; verify timing\/advance and compression.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePropeller, fuel pump\/filter, carburetor jets, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eConfirm 50:1 fuel\/oil mix; ensure choke releases; check idle mixture and float height.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs, carburetor components, reed valves\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;\"\u003eVerify correct gear oil level; check for water intrusion; inspect prop shaft for fishing line damage to seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, bearings, gear oil, drain screw gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"max-width: 900px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years of 6–6.5HP Johnson 2‑strokes?\u003c\/summary\u003e\n    \u003cp\u003eSome components interchange, but cooling, ignition, and carburetor parts often change across years and sub‑models. Always verify by model and serial number before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eAs a preventive measure every 2–3 seasons (or about 200 hours). Replace sooner if you notice weak tell‑tale flow, overheat alarms, or if you run in sandy\/silty water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the gear oil?\u003c\/summary\u003e\n    \u003cp\u003eTypically every 100 hours or once per season. Inspect the oil for a milky appearance (water intrusion) or metal debris and service seals\/bearings if needed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eThe full model number, serial number, and any suffix. Photos of the nameplate and the part needing replacement are also helpful for verification.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width: 900px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse the main Johnson\/Evinrude collection and use the Filter \u0026amp; Sort tools to narrow to your 6.5HP 2‑stroke.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude\" style=\"display:inline-block; padding:10px 16px; background:#0a6cff; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Johnson\/Evinrude Parts\u003c\/a\u003e\n  \u003cp style=\"font-size:12px; color:#555; 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":"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"}],"url":"https:\/\/seasierra.com\/collections\/johnson-2-stroke-6-5hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}