{"title":"Honda Outboard Parts: 4-Stroke 4-10HP Engine Components","description":"\u003csection id=\"hero\" style=\"padding:16px 0;max-width:1100px;margin:0 auto;\"\u003e\n  \u003cp\u003eThis page covers Honda 4‑Stroke 4–10HP outboard engines and helps you find compatible parts and service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Honda collection here: \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\"\u003eHonda Outboard Parts\u003c\/a\u003e. Scroll to the bottom of the page to start browsing parts for this engine. On the collection page, use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 16px;border:1px solid #0a57a3;border-radius:6px;text-decoration:none;\"\u003eBrowse All Honda Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:20px 0;max-width:1100px;margin:0 auto;\"\u003e\n  \u003ch2\u003eHow to Identify Your 4–10HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the serial\/model plate on the transom bracket or swivel bracket; it lists the model code and serial number.\u003c\/li\u003e\n    \u003cli\u003eModel code and suffix indicate features such as shaft length (S\/L\/XL), manual vs. electric start, and tiller vs. remote. Suffixes can also hint at year revisions.\u003c\/li\u003e\n    \u003cli\u003e4–6HP portables are typically single‑cylinder 4‑stroke designs; 8–10HP models are usually twin‑cylinder 4‑strokes. Propeller sizes and some cooling parts differ by platform.\u003c\/li\u003e\n    \u003cli\u003eConfirm your exact model\/serial before ordering to ensure correct impeller, anodes, and propeller hub dimensions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:20px 0;max-width:1100px;margin:0 auto;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003ePortable 4–6HP (e.g., BF4\/BF5\/BF6)\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;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eConfiguration\u003c\/td\u003e\n        \u003ctd\u003eSingle‑cylinder, carbureted 4‑stroke portable; manual start common; tiller control.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCommon Models\u003c\/td\u003e\n        \u003ctd\u003eBF4, BF5, BF6 variants (S\/L shaft, manual\/electric where applicable).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAdvantages\u003c\/td\u003e\n        \u003ctd\u003eLightweight, simple maintenance, excellent portability and fuel economy.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNotes\u003c\/td\u003e\n        \u003ctd\u003eImpeller, anodes, and prop pitch differ by model and shaft length; verify serial plate before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003ePortable 8–10HP (e.g., BF8\/BF9.9)\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;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eConfiguration\u003c\/td\u003e\n        \u003ctd\u003eInline‑2, carbureted 4‑stroke; manual or electric start; tiller or remote options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCommon Models\u003c\/td\u003e\n        \u003ctd\u003eBF8, BF9.9 variants (S\/L\/XL shafts, manual\/electric, tiller\/remote).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAdvantages\u003c\/td\u003e\n        \u003ctd\u003eSmoother running than singles, stronger low‑end torque for heavier loads, good fuel efficiency.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNotes\u003c\/td\u003e\n        \u003ctd\u003eWater pump kits, anodes, and prop hubs vary by series and shaft length; check model code and serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:20px 0;max-width:1100px;margin:0 auto;\"\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 official Honda service manual for your exact model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eEngine oil + filter (if equipped)\u003c\/td\u003e\n        \u003ctd\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd\u003eWarm engine before draining; small models may use screen vs. spin‑on filter.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd\u003eInspect for metal shavings or water intrusion at each change.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\"\u003eHonda Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd\u003eInspect every 100 hours; replace ~200 hours\u003c\/td\u003e\n        \u003ctd\u003eCheck gap and color; replace if fouled or worn.\u003c\/td\u003e\n        \u003ctd\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\u003eFuel filter \/ inline filter\u003c\/td\u003e\n        \u003ctd\u003eInspect every 100 hours; replace as needed\u003c\/td\u003e\n        \u003ctd\u003eCheck for debris\/water; replace if restricted.\u003c\/td\u003e\n        \u003ctd\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\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd\u003eEvery 2–3 seasons (sooner in sandy\/silty water)\u003c\/td\u003e\n        \u003ctd\u003eWeak telltale or overheat alarm often indicates impeller wear.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/honda-water-pump-repair-kits\"\u003eHonda Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAnodes (sacrificial)\u003c\/td\u003e\n        \u003ctd\u003eInspect often; replace when 50% consumed\u003c\/td\u003e\n        \u003ctd\u003eCritical for corrosion protection, especially in brackish\/salt water.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px;color:#555;\"\u003e*Intervals are general recommendations; follow your manual for model‑specific requirements.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:20px 0;max-width:1100px;margin:0 auto;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service – \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System – \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-water-pump-repair-kits\"\u003eHonda 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\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion – \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection – \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit \u0026amp; Seals – \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-lower-unit-seal-kits\"\u003eHonda Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:20px 0;max-width:1100px;margin:0 auto;\"\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;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWeak telltale or overheat alarm\u003c\/td\u003e\n        \u003ctd\u003eInspect intake screen for blockage; verify impeller condition and housing wear.\u003c\/td\u003e\n        \u003ctd\u003eWater pump kit, intake screen, thermostat\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd\u003eConfirm prop condition\/pitch; check fuel quality and filter; inspect plugs.\u003c\/td\u003e\n        \u003ctd\u003ePropeller, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd\u003eCheck choke\/primer operation; inspect plugs and fuel for water; verify idle speed.\u003c\/td\u003e\n        \u003ctd\u003eSpark plugs, fuel filter, carb components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGearcase noise or milky gear oil\u003c\/td\u003e\n        \u003ctd\u003eDrain gear oil and inspect; check for water intrusion at seals.\u003c\/td\u003e\n        \u003ctd\u003eLower unit seal kit, gear oil, prop shaft seals\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:20px 0;max-width:1100px;margin:0 auto;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome items cross between years, but many parts—especially impellers, anodes, and props—are specific to the model, year revision, and shaft length. Always verify your model and serial number before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eFor small Honda 4‑strokes, replacing the impeller every 2–3 seasons is common, or sooner if running in sandy\/silty water or if telltale flow weakens.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the lower unit gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eChange gear oil at least every 100 hours or annually. If the oil looks milky or metallic, service the seals and diagnose the cause before continued use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the model code, serial number, shaft length, start\/control type (manual\/electric, tiller\/remote), and the specific part or assembly you’re replacing.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:20px 0;max-width:1100px;margin:0 auto;\"\u003e\n  \u003cp\u003eReady to find the right parts? Browse the main Honda collection by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 16px;border:1px solid #0a57a3;border-radius:6px;text-decoration:none;\"\u003eShop Honda Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;font-size:12px;color:#555;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"water-pump-impeller-fits-honda-marine-4hp-10hp-outboards-replaces-honda-19210-881-003-19210-881-a01-19210-881-a02","title":"Water Pump Impeller for Honda Marine 4-Stroke 5, 7.5, 8 \u0026 10 HP Outboards – Replaces 19210-881-003, 19210-881-A01 \u0026 19210-881-A02","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;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis high-quality aftermarket \u003cstrong\u003ewater pump impeller\u003c\/strong\u003e is designed for selected Honda Marine 4-stroke outboards rated at 5 HP, 7.5 HP, 8 HP and 10 HP. It supports reliable water-pump operation and helps maintain proper cooling-water circulation when replacing a worn or damaged impeller.\u003c\/p\u003e\n  \u003cp\u003eThis impeller is listed as a replacement for Honda OEM numbers \u003cstrong\u003e19210-881-003\u003c\/strong\u003e, \u003cstrong\u003e19210-881-A01\u003c\/strong\u003e and \u003cstrong\u003e19210-881-A02\u003c\/strong\u003e. It is also cross-referenced to Sierra \u003cstrong\u003e18-3245\u003c\/strong\u003e and Mallory Marine \u003cstrong\u003e9-45100\u003c\/strong\u003e.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eAftermarket replacement impeller for selected Honda Marine 4-stroke outboards.\u003c\/li\u003e\n    \u003cli\u003eDirect-replacement design for the listed application range.\u003c\/li\u003e\n    \u003cli\u003eManufactured from a durable rubber\/neoprene compound for marine cooling-system service.\u003c\/li\u003e\n    \u003cli\u003eUse the engine model and existing impeller dimensions to confirm compatibility before ordering.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse these references to compare the impeller with your original part and other catalog listings.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand or Reference Type\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda OEM\u003c\/td\u003e\n          \u003ctd\u003e19210-881-003\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda OEM\u003c\/td\u003e\n          \u003ctd\u003e19210-881-A01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda OEM\u003c\/td\u003e\n          \u003ctd\u003e19210-881-A02\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra aftermarket reference\u003c\/td\u003e\n          \u003ctd\u003e18-3245\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMallory Marine aftermarket reference\u003c\/td\u003e\n          \u003ctd\u003e9-45100\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThis product is for selected Honda Marine 4-stroke outboards rated at 5, 7.5, 8 and 10 HP. Horsepower alone is not sufficient to confirm fitment; check the engine model, the OEM reference and the impeller dimensions before installation.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel or Rating\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eOEM Part References\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\u003eHonda Marine\u003c\/td\u003e\n          \u003ctd\u003eSelected BF5 models\u003c\/td\u003e\n          \u003ctd\u003e5 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e19210-881-003, 19210-881-A01, 19210-881-A02\u003c\/td\u003e\n          \u003ctd\u003eConfirm the exact model code and impeller dimensions.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda Marine\u003c\/td\u003e\n          \u003ctd\u003eSelected BF75 models\u003c\/td\u003e\n          \u003ctd\u003e7.5 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e19210-881-003, 19210-881-A01, 19210-881-A02\u003c\/td\u003e\n          \u003ctd\u003eConfirm the exact model code and impeller dimensions.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda Marine\u003c\/td\u003e\n          \u003ctd\u003eSelected BF8 models\u003c\/td\u003e\n          \u003ctd\u003e8 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e19210-881-003, 19210-881-A01, 19210-881-A02\u003c\/td\u003e\n          \u003ctd\u003eConfirm the exact model code and impeller dimensions.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda Marine\u003c\/td\u003e\n          \u003ctd\u003eSelected BF10 models\u003c\/td\u003e\n          \u003ctd\u003e10 HP\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e19210-881-003, 19210-881-A01, 19210-881-A02\u003c\/td\u003e\n          \u003ctd\u003eConfirm the exact model code and impeller dimensions.\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\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\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected Honda Marine 4-stroke outboards rated at 5, 7.5, 8 and 10 HP\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDirect replacement for the listed application and reference numbers\u003c\/dd\u003e\n    \u003cdt\u003eMaterial\u003c\/dt\u003e\n    \u003cdd\u003eRubber\/neoprene compound\u003c\/dd\u003e\n    \u003cdt\u003eColor\u003c\/dt\u003e\n    \u003cdd\u003eBlack\u003c\/dd\u003e\n    \u003cdt\u003eInner Diameter\u003c\/dt\u003e\n    \u003cdd\u003e14.20 mm\u003c\/dd\u003e\n    \u003cdt\u003eOuter Diameter\u003c\/dt\u003e\n    \u003cdd\u003e41.00 mm\u003c\/dd\u003e\n    \u003cdt\u003eHeight\u003c\/dt\u003e\n    \u003cdd\u003e23.00 mm\u003c\/dd\u003e\n    \u003cdt\u003eReplacement References\u003c\/dt\u003e\n    \u003cdd\u003eHonda 19210-881-003, 19210-881-A01, 19210-881-A02; Sierra 18-3245; Mallory Marine 9-45100\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Water pump impeller\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eThis listing is for the impeller only. A drive key, gasket, water-pump housing and other service parts are not included unless specifically stated by the seller.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery and remove the engine stop-switch lanyard before beginning service.\u003c\/li\u003e\n    \u003cli\u003ePlace the engine in neutral and remove the lower unit according to the engine manufacturer’s service procedure.\u003c\/li\u003e\n    \u003cli\u003eRemove the water-pump housing cover and inspect the housing, wear plate, seals and drive key for damage or wear.\u003c\/li\u003e\n    \u003cli\u003eNote the direction of the old impeller vanes before removing the old impeller.\u003c\/li\u003e\n    \u003cli\u003eRemove the old impeller and retain the drive key if it is reusable and not included with the replacement part.\u003c\/li\u003e\n    \u003cli\u003eClean debris from the water-pump housing and verify that the replacement impeller dimensions match the original.\u003c\/li\u003e\n    \u003cli\u003eLubricate the impeller and housing with a lubricant suitable for outboard water-pump service.\u003c\/li\u003e\n    \u003cli\u003eInstall the drive key and slide the new impeller onto the shaft while turning the impeller in the correct direction so the vanes seat properly.\u003c\/li\u003e\n    \u003cli\u003eReinstall the water-pump housing and tighten its fasteners to the engine manufacturer’s specification.\u003c\/li\u003e\n    \u003cli\u003eReattach the lower unit, ensuring that the driveshaft and water tube are correctly aligned.\u003c\/li\u003e\n    \u003cli\u003eRun the engine only in water or with an appropriate flushing device, then confirm a steady cooling-water telltale stream and verify that the engine does not overheat.\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 know if this impeller fits my Honda outboard?\u003c\/summary\u003e\n    \u003cp\u003eConfirm that your engine is a Honda Marine 4-stroke rated at 5, 7.5, 8 or 10 HP, then compare the exact model code, the original impeller and one of the listed OEM references. Also verify the dimensions of 14.20 mm inner diameter, 41.00 mm outer diameter and 23.00 mm height.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eCommon signs include engine overheating at idle or low speed, a weak or intermittent telltale stream, reduced cooling-water flow and visible cracks, stiffness, missing vanes or deformation when the impeller is inspected.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should an outboard impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eReplacement intervals depend on operating hours, storage conditions and water quality. Inspect the impeller during scheduled service and replace it when it shows wear, damage or loss of flexibility. Saltwater, sand and silt can shorten service life.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this difficult to install?\u003c\/summary\u003e\n    \u003cp\u003eInstallation requires removal of the lower unit and access to the water-pump housing. It may be suitable for an experienced DIY owner, but professional installation is recommended if you are not familiar with outboard lower-unit service.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement impeller. Honda OEM numbers are provided only as fitment and reference information.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre the drive key and gasket included?\u003c\/summary\u003e\n    \u003cp\u003eNo additional components are specified for this listing. The package contains one impeller only; verify any required drive key, gasket or other water-pump service parts separately.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the shipping speed and cost?\u003c\/summary\u003e\n    \u003cp\u003eAvailable shipping methods, delivery estimates and shipping charges are shown at checkout and depend on the destination and service selected.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n    \u003cp\u003eWarranty coverage and return eligibility are governed by the seller’s current policies. Contact customer support before installation if the part does not match the ordered application or if there is visible damage.\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 exact engine model, stroke, horsepower rating, OEM reference and impeller dimensions before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not operate the outboard without an adequate water supply. Never run the engine dry.\u003c\/li\u003e\n    \u003cli\u003eInspect the water-pump housing and related service parts during installation; replace damaged components as needed.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM Honda component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when lower-unit service is outside your experience.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — We provide aftermarket components for routine marine maintenance and repair.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and fitment information are provided to help you compare the part before ordering.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupport When Needed\u003c\/strong\u003e — Contact customer support if you need help comparing your original part with the listed references.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723976184123,"sku":"17IH001","price":13.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17IH0011_ac78f126-1ae9-4d1c-ae07-235e4134a06d.jpg?v=1763039015"}],"url":"https:\/\/seasierra.com\/collections\/honda-outboard-parts-4-stroke-4-10hp-engine-components.oembed","provider":"SeaSierra","version":"1.0","type":"link"}