{"title":"Yamaha 4-5HP 4-Stroke Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0; max-width:1000px; margin:0 auto;\"\u003e\n  \u003cp\u003e\n    This page is tailored for Yamaha 4–5HP 4‑Stroke outboard engines. It helps you quickly find compatible parts and basic service information, including maintenance tips, common replacement items, and troubleshooting guidance. You can also browse our main Yamaha selection here: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\"\u003eYamaha Outboard Parts\u003c\/a\u003e.\n    Scroll to the bottom of this page to start browsing parts for this engine, and on the collection pages use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category\/section.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0b5; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Yamaha Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:1000px; margin:0 auto; padding:16px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 4–5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate location: look on the starboard clamp bracket or swivel bracket for the model\/serial plate.\u003c\/li\u003e\n    \u003cli\u003eReading the code: examples include F4A, F5A, etc. Suffix letters often indicate start\/control type and shaft length (e.g., M = manual start, H = tiller, S = short 15\" shaft, L = long 20\" shaft).\u003c\/li\u003e\n    \u003cli\u003e4‑Stroke specifics: the leading “F” indicates four‑stroke. These models are typically carbureted single‑cylinder portables.\u003c\/li\u003e\n    \u003cli\u003eSeries differences: earlier “A” series (commonly seen in the 2000s) and later revisions share many service items, but verify using the exact model code and serial.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width:1000px; margin:0 auto; padding:16px 0;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003eYamaha F4\/F5 Portable 4‑Stroke Platform\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #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 #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSingle‑cylinder, SOHC, water‑cooled, carbureted 4‑Stroke; manual start with tiller steering common.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eF4A\/F4B series and F5A\/F5C series; examples may include codes such as MSHA, AMH, MLHB depending on shaft length and controls.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eLightweight and portable, quiet operation, low fuel consumption, good trolling manners.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eMany service parts cross‑fit across 4–6HP families in certain years. Confirm compatibility using the exact model code and serial number.\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:1000px; margin:0 auto; padding:16px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are typical guidelines for small 4‑Stroke outboards. Always follow the procedures and schedules in your official Yamaha service manual.\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 #eee;\"\u003eEngine oil (and filter if equipped)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFirst 10 hours, then every 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eMost 4–5HP models use oil changes without a spin‑on filter; confirm by model. Use FC‑W marine‑rated oil.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-service-maintenance-kits\"\u003eYamaha Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect for water intrusion (milky oil). Replace seals if contamination is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-lower-unit-seal-kits\"\u003eYamaha 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 #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect every 100 hours; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck gap and signs of fouling; replace if worn or contaminated.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel filter \/ inline filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect every 50–100 hours; replace annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace sooner if fuel is stale or contaminated. Use fresh, ethanol‑managed fuel.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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 #eee;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 2 seasons or 200 hours (sooner for sandy\/silty use)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCritical for cooling; replace if stream is weak or after dry‑run events.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-water-pump-repair-kits\"\u003eYamaha Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAnodes (internal\/external)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect every 100 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eMatch anode material to water type (zinc, aluminum, or magnesium).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-anodes\"\u003eYamaha Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePropeller \u0026amp; hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect each trip; remove and grease annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck for dings\/bent blades and fishing line around the shaft; service cotter pin and nut as required.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-propellers\"\u003eYamaha Propellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width:1000px; margin:0 auto; padding:16px 0;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-service-maintenance-kits\"\u003eYamaha Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-water-pump-repair-kits\"\u003eYamaha Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit \u0026amp; Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-lower-unit-seal-kits\"\u003eYamaha Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropellers \u0026amp; Hardware: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-propellers\"\u003eYamaha Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-anodes\"\u003eYamaha Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:1000px; margin:0 auto; padding:16px 0;\"\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 #eee;\"\u003eWeak tell‑tale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect intake screen for blockage; verify impeller condition; confirm thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump kit, intake screen, thermostat, gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eUse fresh fuel; check spark plug gap\/condition; drain carb bowl; clean idle circuit.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSpark plug, fuel filter, carburetor kit, fuel lines\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect propeller for damage\/slip; verify choke operation; check compression if persistent.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePropeller, spark plug, fuel pump\/filter, carb jets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eDrain gear oil and inspect; check for water intrusion; evaluate bearing\/gear wear.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eLower unit seal kit, bearings, prop shaft seals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eVibration at mid‑throttle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck prop for bent blades and hub bushing slippage; inspect engine mounting\/clamp tightness.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePropeller, prop hardware, mounting hardware\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"max-width:1000px; margin:0 auto; padding:16px 0;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable across different years of the Yamaha 4–5HP 4‑Stroke?\u003c\/summary\u003e\n    \u003cp\u003eMany routine items (spark plugs, anodes, impellers) are shared across several year ranges and 4–6HP families. However, revisions in series and suffix codes may change carburetor, seal, or prop hardware details. Confirm using the exact model code 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\u003eAs a rule of thumb, every 2 seasons or ~200 hours, and sooner if you operate in sandy or silty water, see a weak tell‑tale, or experienced a dry‑run. Regular replacement protects against overheating.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eInspect at least annually or every 100 hours. Change immediately if the oil appears milky (water intrusion) or contains metal particles.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to verify part fitment?\u003c\/summary\u003e\n    \u003cp\u003ePlease have the full model code (e.g., F5A with suffix), serial number, horsepower, and shaft length (S\/L). Photos of the nameplate and the part to be replaced are also helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width:1000px; margin:0 auto; padding:20px 0;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse our main Yamaha selection and use the filters to narrow your results.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0b5; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Yamaha Outboard Parts\u003c\/a\u003e\u003c\/p\u003e\n  \u003cp style=\"font-size:0.95em; color:#444;\"\u003eIf you’re unsure about your model, send us a clear 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-repair-kit-fits-yamaha-4-5hp-replaces-6f5-w0078-00-6f5-w0078-a0-00","title":"Aftermarket Water Pump Repair Kit Without Housing for Yamaha C40 and CV40 40 HP 2-Stroke Outboards (1990–1997) – Replaces 679-W0078-A1-00 and 6F5-W0078-A0-00","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\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\n  \/* Small screen optimization *\/\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 water pump repair kit is designed for Yamaha C40 and CV40 40 HP 2-stroke outboard motors. It is supplied without the water pump housing and is intended to service the existing pump assembly with replacement sealing, wear, drive, and impeller components.\u003c\/p\u003e\n\u003cp\u003eThe kit is listed for Yamaha CV40 models from 1990 and Yamaha C40 models from 1991–1997. It replaces Yamaha reference numbers 679-W0078-A1-00 and 6F5-W0078-A0-00. Confirm the exact engine model and year before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket water pump service kit supplied without the pump housing.\u003c\/li\u003e\n  \u003cli\u003eDesigned for Yamaha C40 and CV40 40 HP 2-stroke outboards within the listed application range.\u003c\/li\u003e\n  \u003cli\u003eIncludes an impeller, gaskets, seals, plates, key, fasteners, and related service components listed below.\u003c\/li\u003e\n  \u003cli\u003eUse the existing water pump housing if it is serviceable and compatible with the engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these manufacturer and aftermarket references when comparing the replacement kit with your existing water pump service 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\u003eReference Type\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha reference\u003c\/td\u003e\n        \u003ctd\u003e679-W0078-A1-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha reference\u003c\/td\u003e\n        \u003ctd\u003e6F5-W0078-A0-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAftermarket reference\u003c\/td\u003e\n        \u003ctd\u003e18-3397\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis kit is intended for the following Yamaha 2-stroke applications. Model, horsepower, stroke, and year conditions should be checked together.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\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\u003eApplicable Year\u003c\/th\u003e\n        \u003cth\u003eReference Numbers\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\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eCV40\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990\u003c\/td\u003e\n        \u003ctd\u003e679-W0078-A1-00 \/ 6F5-W0078-A0-00\u003c\/td\u003e\n        \u003ctd\u003eWithout housing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eC40\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1991–1997\u003c\/td\u003e\n        \u003ctd\u003e679-W0078-A1-00 \/ 6F5-W0078-A0-00\u003c\/td\u003e\n        \u003ctd\u003eWithout housing\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 Repair Kit\u003c\/dd\u003e\n  \u003cdt\u003eConfiguration\u003c\/dt\u003e\n  \u003cdd\u003eService kit without water pump housing\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eYamaha C40 and CV40 40 HP 2-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement service components for the existing compatible water pump assembly\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n  \u003cdd\u003eNeoprene rubber\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket Reference\u003c\/dt\u003e\n  \u003cdd\u003e18-3397\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Water Seal Damper 2 (663-44366-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Insert (676-44322-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Impeller (6F5-44352-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Gasket (676-44315-A1-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Outer Plate (676-44323-00-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Cartridge Gasket (676-44324-A1-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Water Pump Gasket (679-44316-A0-00)\u003c\/li\u003e\n  \u003cli\u003e2 x Bolts (97095-08055-00)\u003c\/li\u003e\n  \u003cli\u003e2 x Bolts (97095-08045-00)\u003c\/li\u003e\n  \u003cli\u003e4 x Washers (92990-08600-00)\u003c\/li\u003e\n  \u003cli\u003e1 x Woodruff Key (90280-04M00-00)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The kit is supplied without the water pump housing. The existing housing must be reused only if it is compatible, undamaged, and within serviceable condition.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003ePlace the outboard in a stable service position, disconnect the battery if applicable, and shift into neutral. Remove the lower unit according to the engine service procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the existing water pump housing from the driveshaft. This product does not include a replacement housing.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller, woodruff key, plates, gaskets, seals, and related service parts. Note the orientation of each component before removal.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surfaces of the existing pump housing and pump base. Remove old gasket material, corrosion, and debris without damaging the sealing surfaces.\u003c\/li\u003e\n  \u003cli\u003eInspect the existing housing, pump base, driveshaft, and keyway. Replace any damaged component before installing the service kit.\u003c\/li\u003e\n  \u003cli\u003eInstall the new water seal damper, cartridge insert, gaskets, plates, and other service components in the correct order for the engine.\u003c\/li\u003e\n  \u003cli\u003eInstall the new woodruff key in the driveshaft keyway.\u003c\/li\u003e\n  \u003cli\u003eApply a light coat of marine grease or a soap-and-water solution to the new impeller. Slide it over the key and rotate it in the correct direction so the vanes are not damaged.\u003c\/li\u003e\n  \u003cli\u003eFit the existing compatible housing over the impeller and driveshaft. Install the supplied fasteners and tighten them according to the engine manufacturer’s service specifications.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit and test the engine in water. Confirm a strong, steady cooling-water tell-tale stream before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich engines does this water pump repair kit fit?\u003c\/summary\u003e\u003cp\u003eThe company application specifies Yamaha CV40 40 HP 2-stroke models from 1990 and Yamaha C40 40 HP 2-stroke models from 1991–1997. Verify the exact model and year on your engine before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes the kit include the water pump housing?\u003c\/summary\u003e\u003cp\u003eNo. This is a service kit supplied without the water pump housing. You must reuse a compatible existing housing or obtain a housing separately.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat reference numbers does this kit replace?\u003c\/summary\u003e\u003cp\u003eThe listed Yamaha reference numbers are 679-W0078-A1-00 and 6F5-W0078-A0-00. The aftermarket reference associated with the kit is 18-3397.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install only the impeller?\u003c\/summary\u003e\u003cp\u003eThe kit is intended to service the water pump as a set. Replace the included gaskets, seals, key, plates, and other service components as needed for a complete repair rather than automatically reusing worn or compressed sealing parts.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if the existing housing can be reused?\u003c\/summary\u003e\u003cp\u003eInspect it for scoring, cracks, corrosion, distortion, and damage around the sealing and impeller surfaces. Do not reuse a housing that cannot provide a smooth, properly sealed pump assembly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\u003cp\u003eInspect the impeller during scheduled maintenance and whenever the cooling-water stream is weak or intermittent, the engine overheats, or the pump has been exposed to abrasive sand or silt. Follow the engine manufacturer’s maintenance schedule where available.\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 service kit designed for the listed Yamaha applications. Yamaha reference numbers are provided for identification and cross-reference only.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm the complete engine model, horsepower, stroke, and year range before purchase.\u003c\/li\u003e\n  \u003cli\u003eConfirm that your existing water pump housing is compatible and serviceable; the housing is not included.\u003c\/li\u003e\n  \u003cli\u003eDo not operate the engine without an adequate cooling-water supply.\u003c\/li\u003e\n  \u003cli\u003eFollow the engine service manual for lower-unit removal, installation sequence, fastener torque, and testing procedures.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are not experienced with outboard lower-unit or water-pump service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical aftermarket components for routine service and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and fitment conditions are provided to help you compare your engine before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — Review the listed model, year, stroke, and included components carefully before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723968975163,"sku":"22KY013","price":31.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_4_5HP_6F5-W0078_-_JLM_MARINE-8288841.jpg?v=1763038739"},{"product_id":"water-pump-impeller-kit-fits-yamaha-4-5hp-replaces-6e0-w0078-a2-00","title":"Water Pump Repair Kit with Housing – Fits Yamaha 4HP\/5HP 2-Stroke and F4 4-Stroke Outboards","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap; word-break:normal; letter-spacing:normal;\n    font-weight:600; 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 water pump repair kit with housing is intended for servicing the cooling-water pump on selected Yamaha outboard motors. It is listed for Yamaha 4HP and 5HP 2-stroke applications from 1982–2023 and Yamaha F4 4-stroke applications from 1982–2008.\u003c\/p\u003e\n\u003cp\u003eThe kit is identified as a water pump service or repair kit with a pump housing. It is supplied for water pump maintenance and replacement and should be matched to the exact engine model, year, stroke, and applicable part number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWater pump repair kit supplied with a water pump housing.\u003c\/li\u003e\n  \u003cli\u003eDesigned for water pump service on selected Yamaha 4HP and 5HP outboards.\u003c\/li\u003e\n  \u003cli\u003eAlso listed for selected Yamaha F4 4-stroke outboards.\u003c\/li\u003e\n  \u003cli\u003eUse the part-number and compatibility information below to confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following Yamaha references are associated with this water pump repair kit. Part-number association does not replace checking the complete engine application.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Yamaha part number references\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003cth\u003eReference Type\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-00-00\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-01-00\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003ctd\u003eWater pump repair-kit reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003ctd\u003eWater pump repair-kit reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e68D-WG078-00-00\u003c\/td\u003e\n\u003ctd\u003eListed F4 4-stroke repair-kit reference\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eFitment depends on the complete engine configuration. Confirm the model designation, production year, horsepower, stroke, and existing water pump part number before purchase. The company fitment information lists the following application ranges:\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Compatible Yamaha engine applications\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eListed Years\u003c\/th\u003e\n        \u003cth\u003eRelated Part Numbers\u003c\/th\u003e\n        \u003cth\u003eFitment Notes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eSelected 4HP and 5HP outboards\u003c\/td\u003e\n        \u003ctd\u003e4, 5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1982–1996\u003c\/td\u003e\n        \u003ctd\u003e6E0-W0078-00-00\u003cbr\u003e6E0-W0078-01-00\u003cbr\u003e6E0-W0078-02-00\u003cbr\u003e6E0-W0078-A2-00\u003c\/td\u003e\n        \u003ctd\u003eConfirm the exact engine model before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eSelected 4HP and 5HP outboards\u003c\/td\u003e\n        \u003ctd\u003e4, 5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–2023\u003c\/td\u003e\n        \u003ctd\u003e6E0-W0078-00-00\u003cbr\u003e6E0-W0078-01-00\u003cbr\u003e6E0-W0078-02-00\u003cbr\u003e6E0-W0078-A2-00\u003c\/td\u003e\n        \u003ctd\u003eLater-year fitment remains model-specific; verify the engine identification label.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF4 outboards\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1982–2008\u003c\/td\u003e\n        \u003ctd\u003e68D-WG078-00-00\u003cbr\u003e6E0-W0078-00-00\u003cbr\u003e6E0-W0078-01-00\u003cbr\u003e6E0-W0078-02-00\u003c\/td\u003e\n        \u003ctd\u003eVerify the exact F4 model and water pump reference.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCatalog-listed examples\u003c\/h3\u003e\n\u003cp\u003eParts-catalog occurrences associate the 6E0-W0078 repair-kit references with selected Yamaha 4HP and 5HP 2-stroke models, including 4LK, 4LN, 4SK, 4SN, 5LK, 5LN, 5SK, and 5SN applications in the catalog records reviewed. The 6E0-W0078-A2-00 and 6E0-W0078-A3-00 references also appear with selected 1996–2002 4HP and 5HP 2-stroke models. The 68D-WG078-00-00 reference appears with selected Yamaha F4 4-stroke models from 2002–2009 in the catalog records reviewed. These examples are not an exhaustive fitment list and do not override the company-listed application ranges.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump repair kit with housing\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Yamaha 4HP and 5HP 2-stroke outboards and Yamaha F4 4-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eWater pump service or replacement installation\u003c\/dd\u003e\n  \u003cdt\u003eFitment Verification\u003c\/dt\u003e\n  \u003cdd\u003eMatch the engine model, year, horsepower, stroke, and water pump part number before installation\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Water pump repair kit with housing\u003c\/li\u003e\n  \u003cli\u003eService components intended for the listed water pump application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComponent details and hardware configuration can vary by application. Compare the supplied parts with the original water pump assembly before beginning installation. Do not assume that a component listed for one engine application fits every engine in the horsepower range.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the engine model, year, horsepower, stroke, and existing water pump reference before starting work.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery or follow the engine manufacturer's required safety procedure, and place the outboard in a stable service position.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the manufacturer's service instructions.\u003c\/li\u003e\n  \u003cli\u003eRemove the existing water pump housing and related service components. Note the orientation of the impeller and the position of any key, pin, plate, gasket, or seal before removal.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surfaces and inspect the driveshaft, keyway, water tube, and surrounding components for wear, corrosion, or damage.\u003c\/li\u003e\n  \u003cli\u003eCompare the new housing and service components with the original parts before assembly.\u003c\/li\u003e\n  \u003cli\u003eInstall the repair-kit components in the correct order and orient the impeller vanes according to the manufacturer's procedure.\u003c\/li\u003e\n  \u003cli\u003eUse only suitable lubricant or assembly products recommended for the water pump components. Do not run the impeller dry.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit and tighten fasteners to the manufacturer's specified torque and sequence.\u003c\/li\u003e\n  \u003cli\u003eTest the outboard using an appropriate water supply or flush attachment. Confirm a steady cooling-water discharge and check for leaks before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow can I confirm this kit fits my motor?\u003c\/summary\u003e\n  \u003cp\u003eCheck the complete engine model and year, rated horsepower, stroke, and existing water pump part number. The 4HP, 5HP, and F4 application ranges are not universal across every model or production year.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common symptoms of a worn water pump?\u003c\/summary\u003e\n  \u003cp\u003eA weak or missing tell-tale stream, overheating, an overheating warning, or reduced cooling performance can indicate a worn impeller or another water-pump or cooling-system problem. Stop operation and diagnose the cause before continued use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this product include the water pump housing?\u003c\/summary\u003e\n  \u003cp\u003eYes. The company product description identifies this item as a water pump service or repair kit with housing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a complete lower-unit assembly?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is a water pump repair kit with housing for servicing the water pump. It is not a complete lower unit or a complete gearcase assembly.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I install it without checking the original part?\u003c\/summary\u003e\n  \u003cp\u003eNo. Compare the original water pump assembly, part number, mounting arrangement, and engine identification before installation. Related part numbers can apply to different model, year, or stroke conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should a water pump be serviced?\u003c\/summary\u003e\n  \u003cp\u003eService intervals depend on the engine manufacturer's maintenance schedule and operating conditions. Inspection or replacement may be needed sooner when the outboard is used in sandy, silty, salty, or debris-filled water.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the exact engine model, year, horsepower, stroke, and part number before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not treat a general horsepower match as confirmation of fitment.\u003c\/li\u003e\n  \u003cli\u003eInspect all supplied and reused components before assembly.\u003c\/li\u003e\n  \u003cli\u003eNever operate an outboard without an adequate water supply to the cooling system.\u003c\/li\u003e\n  \u003cli\u003eFollow the manufacturer's service procedures and torque specifications; professional installation is recommended when required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical service components for routine outboard maintenance and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and fitment ranges are provided to help you compare your engine before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Maintenance Work\u003c\/strong\u003e — Review the engine identification and original component details whenever application-specific fitment is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969007931,"sku":"17KY004","price":35.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_4HP_5HP___6E0-W0078-A2-00_6E0-W0078-02-00_6E0-W0078-01-00_6E0-W0078-00-00_-_JLM_MARINE-8286392.jpg?v=1763038741"},{"product_id":"carburetor-assembly-yamaha-4-5hp-4-stroke-replaces-67d-14301-13","title":"Carburetor Assembly – Fits Yamaha 4-5HP 4-Stroke Outboards (Replaces 67D-14301-13)","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\u003ecarburetor assembly\u003c\/strong\u003e is an aftermarket replacement for selected Yamaha 4-stroke outboard applications in the 4 HP and 5 HP range. It is listed for Yamaha F4 and F5 models and is intended to restore proper fuel metering, starting, idle quality, and acceleration when the original carburetor is worn, contaminated, or damaged.\u003c\/p\u003e\n\u003cp\u003eThe assembly is listed as a replacement for Yamaha part number \u003cstrong\u003e67D-14301-13\u003c\/strong\u003e and is also associated with the earlier references shown in the part-number matrix below. Confirm the exact engine model, year, and existing carburetor number before ordering because fitment can vary by model designation and production year.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete aftermarket carburetor assembly.\u003c\/li\u003e\n  \u003cli\u003eDesigned for gasoline-fueled 4-stroke marine outboards.\u003c\/li\u003e\n  \u003cli\u003eIntended as a direct replacement for the specified applications.\u003c\/li\u003e\n  \u003cli\u003eOne carburetor assembly is included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these references for comparison with the number on your existing carburetor or engine parts documentation. Number cross-references should be confirmed against the complete engine model and year.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number 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\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e67D-14301-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e67D-14301-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e67D-14301-13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e68D-14301-03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e68D-14301-13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-34601\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e39601\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe following applications are listed for this replacement carburetor. Match the complete model designation and year with your engine before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Yamaha 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\u003eYear\u003c\/th\u003e\n\u003cth\u003eReference Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MLHA\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MLHB\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MLHY\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MLHZ\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MSHA\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MSHB\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MSHY\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MSHZ\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003e67D-14301-10\/11\/12\/13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MLHD\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003e67D-14301-13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MSHD\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003e67D-14301-13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MLH\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006 and later\u003c\/td\u003e\n\u003ctd\u003e67D-14301-13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF4MSH\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006 and later\u003c\/td\u003e\n\u003ctd\u003e67D-14301-13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999 and later\u003c\/td\u003e\n\u003ctd\u003e67D-14301-13\u003c\/td\u003e\n\u003ctd\u003eVerify the complete model code before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAdditional Listed Application\u003c\/h3\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Additional Engine 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\u003eYear\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eParsun\u003c\/td\u003e\n\u003ctd\u003eF4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eListed as a compatible application; confirm the original carburetor and engine model before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\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\u003eCarburetor assembly\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected 4-stroke outboard engines\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation using the specified engine mounting points and connections\u003c\/dd\u003e\n  \u003cdt\u003eReference Part Number\u003c\/dt\u003e\n\u003cdd\u003e67D-14301-13\u003c\/dd\u003e\n  \u003cdt\u003eOther References\u003c\/dt\u003e\n\u003cdd\u003e67D-14301-10, 67D-14301-11, 67D-14301-12, 68D-14301-03, 68D-14301-13, Sierra 18-34601, and Mercury\/Mariner 39601\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Carburetor assembly\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eShut off the fuel supply, disconnect the battery where applicable, and work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n  \u003cli\u003eRemove the engine cowling and airbox or intake cover as required to access the carburetor.\u003c\/li\u003e\n  \u003cli\u003eLabel and disconnect the fuel line, throttle linkage, choke linkage, and any other connected hoses.\u003c\/li\u003e\n  \u003cli\u003eRemove the existing carburetor and inspect the mounting gasket and sealing surfaces.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting area and replace damaged or unsuitable gaskets before installing the replacement assembly.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement carburetor and tighten the mounting hardware evenly according to the engine manufacturer’s service instructions.\u003c\/li\u003e\n  \u003cli\u003eReconnect all fuel lines, linkages, and hoses in their original positions. Confirm that the throttle and choke move freely.\u003c\/li\u003e\n  \u003cli\u003ePrime the fuel system and inspect every connection for leaks before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eAfter starting, check idle quality, throttle response, and fuel leakage. Adjust only according to the applicable service procedure.\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 carburetor fits my outboard?\u003c\/summary\u003e\u003cp\u003eMatch the complete engine model designation and year with the compatibility table, then compare the existing carburetor and its reference number with the numbers listed above. Check mounting points, linkages, fuel connections, and overall configuration before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are common signs of a failing carburetor?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include hard starting, rough or unstable idle, stalling, poor acceleration, excessive fuel consumption, black exhaust smoke, or visible fuel leakage. Fuel leaks require immediate attention before operating the engine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this carburetor require adjustment after installation?\u003c\/summary\u003e\u003cp\u003eSome engines may require idle-speed or other service adjustments after installation. Follow the service instructions for the specific engine and do not alter adjustment screws unnecessarily.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM carburetor?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for an aftermarket replacement carburetor assembly. The referenced Yamaha, Sierra, and Mercury\/Mariner numbers are included for application and comparison purposes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is included?\u003c\/summary\u003e\u003cp\u003eThe package includes one carburetor assembly. Other components, such as gaskets, hoses, or linkage hardware, are not included unless specifically stated in the package contents.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the shipping and return terms?\u003c\/summary\u003e\u003cp\u003eShipping availability, delivery estimates, warranty coverage, and return eligibility are determined by the current store policies and are shown during checkout or through customer support.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm the engine model, year, stroke, and existing part number before ordering.\u003c\/li\u003e\n  \u003cli\u003eCompare the replacement assembly with the original part, including mounting points, linkages, and fuel connections.\u003c\/li\u003e\n  \u003cli\u003eDo not operate the engine if fuel leakage is present.\u003c\/li\u003e\n  \u003cli\u003eUse suitable marine-service procedures and consult a qualified technician when necessary.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not a genuine OEM component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Replacement components for selected marine engine applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and compatibility information are provided to help customers compare parts before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact support if you need help comparing your engine model or existing part with this listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969040699,"sku":"JLM23CA102","price":73.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Carburetor_for_Yamaha_4-5HP_4_Stroke_1999_and_Up_67D-14301-13_18-34601_-_JLM_MARINE-8285910.jpg?v=1763038743"},{"product_id":"water-pump-impeller-kit-fits-yamaha-4hp-5hp-replaces-6e0-w0078-a2-00","title":"Water Pump Repair Kit – Yamaha 4 HP \u0026 5 HP 2-Stroke Outboards (Selected 1984–2002 Models)","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump repair kit\u003c\/strong\u003e is designed for selected Yamaha 4 HP and 5 HP 2-stroke outboards. It is listed in engine parts catalogs as a water pump repair kit for specific Yamaha models and model years from 1984 through 2002. Confirm the exact model, year, and existing water pump part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThe kit is associated with Yamaha water pump repair kit references including \u003cstrong\u003e6E0-W0078-02-00\u003c\/strong\u003e for selected 1984–1985 models, \u003cstrong\u003e6E0-W0078-A2-00\u003c\/strong\u003e for selected 1996 models, and \u003cstrong\u003e6E0-W0078-A3-00\u003c\/strong\u003e for selected 1997–2002 models. These references apply only to the model and year combinations shown below; a shared part number does not confirm fitment for every 4 HP or 5 HP outboard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement water pump repair kit for selected Yamaha 4 HP and 5 HP 2-stroke outboards.\u003c\/li\u003e\n\u003cli\u003eDesigned for water pump service and restoration of proper cooling-water circulation.\u003c\/li\u003e\n\u003cli\u003eUse the existing parts and the engine service information to confirm installation orientation and required hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following references are documented for the specific Yamaha applications listed in the compatibility table. They should not be treated as universal equivalents outside those applications.\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\u003eWater Pump Repair Kit Reference\u003c\/th\u003e\n\u003cth\u003eDocumented Application Scope\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003ctd\u003eSelected 1984–1985 Yamaha 4 HP and 5 HP 2-stroke models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003ctd\u003eSelected 1996 Yamaha 4 HP and 5 HP 2-stroke models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003ctd\u003eSelected 1997–2002 Yamaha 4 HP and 5 HP 2-stroke models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eFitment is limited to the documented Yamaha 2-stroke applications below. Model suffixes, year, and stroke must all match. Always compare the part number on the original water pump kit with the applicable reference before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Yamaha Engine Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel Examples\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eApplicable Reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e4LK, 4LN, 4SK, 4SN\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1985\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5LK, 5LN, 5SK, 5SN\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1984–1985\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e4MLHU, 4MLHU2, 4MSHU, 4MSHU2\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5MLHU, 5MLHU2, 5MSHU, 5MSHU2\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e4MLHV, 4MSHV, 4MLHW, 4MSHW, 4MLHX, 4MSHX\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–1999\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5MLHV, 5MSHV, 5MLHW, 5MSHW, 5MLHX, 5MSHX\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–1999\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e5MLHY, 5MSHY, 5MSHKZ, 5MSHZ, 5MSHA\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2000–2002\u003c\/td\u003e\n\u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eNot confirmed:\u003c\/strong\u003e Yamaha 4-stroke F4 models and Mariner models are not included in the verified application scope for this listing. Do not use the kit for those engines unless the exact engine catalog and part number independently confirm compatibility.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater pump repair kit\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Yamaha 4 HP and 5 HP 2-stroke outboards\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement water pump service component\u003c\/dd\u003e\n\u003cdt\u003eAftermarket Status\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement; not manufactured by Yamaha\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cp\u003eThis listing is supplied as a water pump repair kit. The kit is intended to replace the water pump service components shown in the product imagery and associated application listing. Component configuration may vary by production batch; compare the supplied parts with the original assembly before installation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater pump repair components for the applicable Yamaha lower unit\u003c\/li\u003e\n\u003cli\u003eImpeller and related water pump service components as applicable to the kit configuration\u003c\/li\u003e\n\u003cli\u003eGaskets, seals, plates, insert, dowel pin, and fasteners where included in the illustrated kit configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not assume that every component listed for a Yamaha OEM assembly is included unless it is visible in the package or specifically identified by the seller.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the spark plug wire and secure the engine against accidental starting. Follow the service manual for your exact model.\u003c\/li\u003e\n\u003cli\u003eRemove the lower unit according to the engine manufacturer's procedure, taking care not to damage the shift shaft, driveshaft, or water tube.\u003c\/li\u003e\n\u003cli\u003eRemove the existing water pump components and note the orientation of the impeller vanes, gasket, plate, and water pump housing.\u003c\/li\u003e\n\u003cli\u003eClean all mating surfaces and inspect the driveshaft, keyway, water tube, and lower-unit sealing surfaces before assembly.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement gasket, plate, impeller, key or dowel, and housing components in the same arrangement as the original assembly and service-manual diagram.\u003c\/li\u003e\n\u003cli\u003eRotate the driveshaft in the specified direction while seating the impeller so the vanes fold correctly inside the housing.\u003c\/li\u003e\n\u003cli\u003eInstall and tighten the water pump fasteners to the torque specification for the exact engine model.\u003c\/li\u003e\n\u003cli\u003eReinstall the lower unit, confirming correct alignment of the driveshaft, shift shaft, and water tube.\u003c\/li\u003e\n\u003cli\u003eRun the engine in an appropriate test tank or in the water and confirm a strong, continuous cooling-water discharge before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eMaintenance \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if the water pump needs service?\u003c\/summary\u003e\n\u003cp\u003eCommon warning signs include weak or absent cooling-water discharge, overheating, an engine temperature alarm, or an impeller that is cracked, brittle, deformed, or damaged. Inspect the complete water pump assembly if cooling performance changes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this kit fit every Yamaha 4 HP or 5 HP outboard?\u003c\/summary\u003e\n\u003cp\u003eNo. Fitment is limited to the Yamaha 2-stroke model and year combinations documented in the compatibility table. Horsepower alone is not sufficient to confirm fitment because water pump designs and part references can vary by model suffix and year.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this kit fit Yamaha F4 four-stroke engines?\u003c\/summary\u003e\n\u003cp\u003eFour-stroke F4 fitment is not confirmed for this listing. Use the exact four-stroke engine model and serial information to identify the correct water pump kit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this kit fit Mariner 4 HP or 5 HP outboards?\u003c\/summary\u003e\n\u003cp\u003eMariner fitment is not confirmed for this listing. Do not order based only on horsepower or a similar-looking engine; verify the exact Mariner model, year, serial range, and water pump reference first.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this an OEM Yamaha part?\u003c\/summary\u003e\n\u003cp\u003eNo. This is an aftermarket replacement water pump repair kit. Yamaha and the listed Yamaha part references are used only to identify the documented application and replacement reference.\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 impeller and water pump during scheduled service and replace them when wear, cracking, hardening, deformation, or reduced cooling-water flow is found. Operating conditions such as saltwater, sand, or silt may require more frequent inspection.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the complete engine model, year, stroke, and part number before ordering.\u003c\/li\u003e\n\u003cli\u003eDo not rely on horsepower alone to determine compatibility.\u003c\/li\u003e\n\u003cli\u003eUse the service manual for the exact engine when removing or installing the lower unit and water pump.\u003c\/li\u003e\n\u003cli\u003eDo not operate the engine if the cooling-water discharge is weak or absent.\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\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement marine parts for routine maintenance and repair.\u003c\/li\u003e\n\u003cli\u003eApplication-focused listings with model and part-number information where available.\u003c\/li\u003e\n\u003cli\u003eSupport for selecting replacement components based on the engine's exact specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723969073467,"sku":"SIE-17KY001","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/SIE-17KY001_1_274adcd4-c65d-448d-94be-b008ef3a723e.jpg?v=1763038745"},{"product_id":"water-pump-impeller-kit-fits-yamaha-4hp-5hp-2-stroke-f4-f5-f6-4-stroke-replaces-6e0-w0078-a2-00-18-3410","title":"Yamaha 4HP\/5HP 2-Stroke Water Pump Repair Kit with Housing – Replaces 6E0-W0078-A2-00","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump repair kit with housing\u003c\/strong\u003e is designed for selected Yamaha 4HP and 5HP 2-stroke outboards. It provides the principal components required to service the water pump and restore dependable cooling-water circulation when the existing impeller and related pump parts are worn.\u003c\/p\u003e\n  \u003cp\u003eThe primary Yamaha reference associated with this kit is \u003cstrong\u003e6E0-W0078-A2-00\u003c\/strong\u003e. Yamaha parts-catalog occurrences identify this water pump repair kit on selected 4HP and 5HP 2-stroke models, including 1996 4MLHU, 4MLHU2, 4MSHU, 4MSHU2, 5MLHU, 5MLHU2, 5MSHU, and 5MSHU2 applications.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater pump repair kit supplied with a pump housing.\u003c\/li\u003e\n    \u003cli\u003eSuitable for selected Yamaha 4HP and 5HP 2-stroke outboards.\u003c\/li\u003e\n    \u003cli\u003eIntended for replacement of worn water-pump service components.\u003c\/li\u003e\n    \u003cli\u003eVerify the exact model, year, and existing part number before ordering.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number References\u003c\/h2\u003e\n  \u003cp\u003eThe following references are catalog or aftermarket identifiers associated with this product family. They should not be treated as universally interchangeable without confirming the engine application.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n          \u003cth\u003eReference Status\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n          \u003ctd\u003ePrimary catalog reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n          \u003ctd\u003eRelated catalog variant; confirm exact model and year\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e6E0-W0078-02-00\u003c\/td\u003e\n          \u003ctd\u003eCatalog occurrence on selected 1984 applications; not a universal interchange claim\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Sierra 18-3410 is listed in the Sierra catalog as a different Yamaha water-pump kit associated with Yamaha 68T-W0078-00-00. It is not presented here as a confirmed equivalent for this product.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eFitment must be confirmed using the complete engine model and year. Horsepower alone is not sufficient because Yamaha water-pump components can vary by model generation and application.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel Examples\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eYear\u003c\/th\u003e\n          \u003cth\u003eCatalog Reference\u003c\/th\u003e\n          \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e4MLHU, 4MLHU2, 4MSHU, 4MSHU2\u003c\/td\u003e\n          \u003ctd\u003e4\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1996\u003c\/td\u003e\n          \u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n          \u003ctd\u003eCatalog-listed repair-kit applications\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e5MLHU, 5MLHU2, 5MSHU, 5MSHU2\u003c\/td\u003e\n          \u003ctd\u003e5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1996\u003c\/td\u003e\n          \u003ctd\u003e6E0-W0078-A2-00\u003c\/td\u003e\n          \u003ctd\u003eCatalog-listed repair-kit applications\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e4MLHV, 4MSHV, 5MLHV, 5MSHV\u003c\/td\u003e\n          \u003ctd\u003e4–5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1997\u003c\/td\u003e\n          \u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n          \u003ctd\u003eRelated catalog variant; verify before purchase\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e4MLHW, 4MSHW, 5MLHW, 5MSHW\u003c\/td\u003e\n          \u003ctd\u003e4–5\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1998\u003c\/td\u003e\n          \u003ctd\u003e6E0-W0078-A3-00\u003c\/td\u003e\n          \u003ctd\u003eRelated catalog variant; verify before purchase\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003eThe available catalog evidence does not confirm fitment for Yamaha F4, F5, or F6 4-stroke engines. Those models have been removed from the confirmed compatibility claims for this listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eWater pump repair kit with housing\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected Yamaha 4HP and 5HP 2-stroke outboards\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDirect replacement when the exact engine application is confirmed\u003c\/dd\u003e\n    \u003cdt\u003ePrimary Yamaha Reference\u003c\/dt\u003e\n    \u003cdd\u003e6E0-W0078-A2-00\u003c\/dd\u003e\n    \u003cdt\u003eConstruction\u003c\/dt\u003e\n    \u003cdd\u003eRubber impeller with metal and molded water-pump service components\u003c\/dd\u003e\n    \u003cdt\u003eFunction\u003c\/dt\u003e\n    \u003cdd\u003eRestores water-pump service components used for engine cooling\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  \u003cp\u003eThis is a water-pump repair kit supplied with a housing. The exact component configuration can vary by application and production version, so compare the supplied parts with the pump assembly on your engine before installation.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater-pump impeller\u003c\/li\u003e\n    \u003cli\u003eWater-pump housing and related pump components\u003c\/li\u003e\n    \u003cli\u003eWear or impeller plate, where specified for the application\u003c\/li\u003e\n    \u003cli\u003eImpeller key, gasket, seals, and installation hardware as applicable to the kit configuration\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eConfirm the complete engine model, year, stroke, and existing water-pump reference before disassembly.\u003c\/li\u003e\n    \u003cli\u003eStop the engine, remove the ignition key, disconnect the battery where applicable, and allow the engine to cool.\u003c\/li\u003e\n    \u003cli\u003ePlace the engine securely in a suitable service position and remove the lower unit according to the manufacturer's service procedure.\u003c\/li\u003e\n    \u003cli\u003eRemove the water-pump housing and inspect the impeller, wear surfaces, key, seals, and mating faces.\u003c\/li\u003e\n    \u003cli\u003eClean old gasket material and debris from all sealing surfaces.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement components in the same orientation as the removed parts. Make sure the impeller key is fully seated.\u003c\/li\u003e\n    \u003cli\u003eApply only the lubricant recommended by the engine manufacturer and avoid contaminating gasket or sealing surfaces.\u003c\/li\u003e\n    \u003cli\u003eReassemble the pump and lower unit using the manufacturer's tightening sequence and torque specifications.\u003c\/li\u003e\n    \u003cli\u003eRun the engine in a suitable test tank or water source and confirm a steady cooling-water telltale stream before normal operation.\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 Yamaha engine?\u003c\/summary\u003e\n    \u003cp\u003eCompare the complete Yamaha model code and model year with the compatibility information above, and compare the existing water-pump reference with the listed catalog reference. Do not rely on horsepower alone. If the model, year, stroke, or pump design differs, confirm the application before ordering.\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 interrupted telltale stream, overheating at idle or low speed, reduced cooling-water flow, or a brittle, cracked, melted, or deformed impeller during inspection.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the water-pump components be inspected?\u003c\/summary\u003e\n    \u003cp\u003eInspect the water pump at the interval recommended for your engine and whenever the engine has been operated in sandy, silty, weedy, or saltwater conditions. Replace damaged or hardened components promptly.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this kit include a housing?\u003c\/summary\u003e\n    \u003cp\u003eYes. This listing is described as a water-pump repair kit with housing. Because component configurations can vary by application, compare the product contents with your original pump assembly before installation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM Yamaha part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement kit intended for the listed Yamaha applications. Yamaha and other brand names and part numbers are used only to identify compatibility references.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this kit on a Yamaha F4, F5, or F6 4-stroke?\u003c\/summary\u003e\n    \u003cp\u003eFitment for those 4-stroke models is not confirmed by the available catalog evidence for this listing. Confirm the exact engine model and water-pump reference before purchasing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat if my original part looks different?\u003c\/summary\u003e\n    \u003cp\u003eDo not install the kit if the housing, impeller, keyway, sealing surfaces, or other critical components differ from your original assembly. Confirm the exact model and application with a qualified marine technician.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the complete engine model, year, stroke, and existing part number before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not treat a number appearing in a cross-reference list as proof of universal interchangeability.\u003c\/li\u003e\n    \u003cli\u003eUse the manufacturer's service manual for disassembly, torque, sealing, and testing procedures.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended if you are not experienced with outboard lower-unit or water-pump service.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM Yamaha component.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine-Focused Selection\u003c\/strong\u003e — Replacement parts selected for common outboard maintenance and repair applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Conscious Fitment\u003c\/strong\u003e — We recommend checking the complete model and part-number information before ordering.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — Clear product information helps you select the correct maintenance component for your engine.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723976413499,"sku":"23KY701","price":52.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha__4_-_5_HP_2-stroke_F4_-_F5_-_F6_1_cyl_4-stroke_6E0-W0078-00_-_JLM_MARINE-8289259.jpg?v=1763039027"},{"product_id":"water-pump-impeller-fits-yamaha-4-6-hp-replaces-6e0-44352-00","title":"Water Pump Impeller for Yamaha 4–6 HP Outboards – Replaces 6E0-44352-00","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller\u003c\/strong\u003e is designed for specified Yamaha 4–6 HP outboards, including selected 2-stroke 4A, 4B, and 5C models and 4-stroke F4A, F4B, F5A, and F6C models. It is also listed for Mariner 4A and 5C 2-stroke applications. Always compare your original impeller and OEM part number before ordering.\u003c\/p\u003e\n\u003cp\u003eThe impeller is a direct replacement reference for Yamaha \u003cstrong\u003e6E0-44352-00\u003c\/strong\u003e and \u003cstrong\u003e6E0-44352-00-00\u003c\/strong\u003e. Additional aftermarket reference numbers include Sierra \u003cstrong\u003e18-3073\u003c\/strong\u003e, Mallory \u003cstrong\u003e9-45611\u003c\/strong\u003e, GLM \u003cstrong\u003e89860\u003c\/strong\u003e, and Mercury Marine \u003cstrong\u003e47-96305M\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement water pump impeller for selected small Yamaha and Mariner outboards.\u003c\/li\u003e\n  \u003cli\u003eSix-blade design for the specified water pump application.\u003c\/li\u003e\n  \u003cli\u003eManufactured to the listed replacement dimensions for proper pump fit and cooling-system operation.\u003c\/li\u003e\n  \u003cli\u003eSold as a single impeller; confirm all required installation hardware against your original water pump assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following numbers as cross-reference information only. Confirm the exact engine model and water pump configuration before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eReference Type\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-44352-00\u003c\/td\u003e\n\u003ctd\u003eOEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6E0-44352-00-00\u003c\/td\u003e\n\u003ctd\u003eOEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-96305M\u003c\/td\u003e\n\u003ctd\u003eAftermarket\/OEM cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3073\u003c\/td\u003e\n\u003ctd\u003eAftermarket reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-45611\u003c\/td\u003e\n\u003ctd\u003eAftermarket reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e89860\u003c\/td\u003e\n\u003ctd\u003eAftermarket reference\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe company fitment records identify the following applications. Model, horsepower, and stroke conditions should be treated together; do not rely on horsepower alone.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Reference\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e4A, 4B\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6E0-44352-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003e5C\u003c\/td\u003e\n        \u003ctd\u003e5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6E0-44352-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMariner\u003c\/td\u003e\n        \u003ctd\u003e4A\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e47-96305M\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMariner\u003c\/td\u003e\n        \u003ctd\u003e5C\u003c\/td\u003e\n        \u003ctd\u003e5\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e47-96305M\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF4A, F4B\u003c\/td\u003e\n        \u003ctd\u003e4\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6E0-44352-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF5A\u003c\/td\u003e\n        \u003ctd\u003e5\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6E0-44352-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF6C\u003c\/td\u003e\n        \u003ctd\u003e6\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e6E0-44352-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump impeller\u003c\/dd\u003e\n  \u003cdt\u003eProduct Configuration\u003c\/dt\u003e\n  \u003cdd\u003eSingle impeller\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eRubber impeller\u003c\/dd\u003e\n  \u003cdt\u003eOutside Diameter\u003c\/dt\u003e\n  \u003cdd\u003e1.540 in\u003c\/dd\u003e\n  \u003cdt\u003eBore Diameter\u003c\/dt\u003e\n  \u003cdd\u003e0.415 in\u003c\/dd\u003e\n  \u003cdt\u003eThickness\u003c\/dt\u003e\n  \u003cdd\u003e0.485 in\u003c\/dd\u003e\n  \u003cdt\u003eKey Dimension Reference\u003c\/dt\u003e\n  \u003cdd\u003e0.155 in\u003c\/dd\u003e\n  \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n  \u003cdd\u003e6\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Water pump impeller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the spark plug wire(s), place the outboard in neutral, and follow the service manual safety instructions.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit from the driveshaft housing according to the engine manufacturer’s procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the water pump housing cover and expose the existing impeller.\u003c\/li\u003e\n  \u003cli\u003eBefore removal, note the impeller blade orientation and inspect the keyway, pump housing, wear plate, gaskets, and related hardware.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller and clean the mating surfaces. Replace worn gaskets or damaged pump components as required.\u003c\/li\u003e\n  \u003cli\u003eInstall the impeller using the correct key or drive pin for your specific engine. Do not reuse damaged hardware.\u003c\/li\u003e\n  \u003cli\u003eApply a light water-compatible lubricant or soap-and-water solution to the impeller and pump housing to prevent damage during initial rotation. Avoid starting the engine dry.\u003c\/li\u003e\n  \u003cli\u003eReinstall the pump housing and related components, tightening fasteners to the manufacturer’s specified torque.\u003c\/li\u003e\n  \u003cli\u003eReattach the lower unit and test the engine in water. Confirm a steady tell-tale stream and monitor for overheating.\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 my impeller needs replacing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include a weak or missing tell-tale stream, overheating, reduced cooling-water flow, or visible cracking, stiffness, melting, or damaged blades. An impeller should also be inspected when the water pump is serviced.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this listing include a key, gasket, or complete water pump kit?\u003c\/summary\u003e\n  \u003cp\u003eNo. This product is listed as a single water pump impeller. The box contents do not identify a key, gasket, housing, wear plate, or complete repair kit. Check your original assembly and obtain any additional parts required for your specific engine separately.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit my engine if the model is not listed?\u003c\/summary\u003e\n  \u003cp\u003eDo not assume fitment. Confirm the complete engine model, horsepower, stroke, year or serial range when applicable, and OEM part number. The listed references are not a substitute for checking the exact water pump configuration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs lubrication needed during installation?\u003c\/summary\u003e\n  \u003cp\u003eUse a light water-compatible lubricant or soap-and-water solution during installation to help protect the blades during initial rotation. Never operate the engine without an adequate water supply.\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 impeller, not a Yamaha or Mercury branded OEM component. The displayed OEM and aftermarket numbers are reference numbers used for identification and compatibility checking.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the original impeller dimensions, blade count, keyway, and part number before purchase.\u003c\/li\u003e\n  \u003cli\u003eKeep the Yamaha 2-stroke and 4-stroke model conditions separate when confirming fitment.\u003c\/li\u003e\n  \u003cli\u003eReplace damaged pump components and gaskets as needed; a worn housing or wear plate can affect cooling performance.\u003c\/li\u003e\n  \u003cli\u003eDo not run the outboard dry. Test the cooling system in water or with the manufacturer-approved flushing equipment.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are unfamiliar with lower-unit or water-pump service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical replacement components for common outboard maintenance needs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Fitment information is organized by engine brand, model, horsepower, and stroke.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear Cross-References\u003c\/strong\u003e — OEM and aftermarket reference numbers are provided to support careful part identification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723976446267,"sku":"17IY015","price":14.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_for_Yamaha_4-5-6_HP_6E0-44352-00_-_JLM_MARINE-8288702.jpg?v=1763039029"}],"url":"https:\/\/seasierra.com\/collections\/yamaha-4-5hp-4-stroke-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}