{"title":"Mercury 4-Stroke Outboard Engine 65-220HP Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #eef0f2; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page supports Mercury 4‑Stroke outboard engines in the 65–220HP range. Use it to quickly find compatible parts and essential service information. Below you’ll find maintenance intervals, commonly replaced items, troubleshooting tips, and direct links to popular part categories. You can also browse the main Mercury collection any time, and when you reach the collection, use the Filter \u0026amp; Sort controls to narrow by horsepower, year range, and part category. Scroll to the bottom for a quick link to start shopping parts for this engine family.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block; padding:10px 14px; background:#0a4; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 65–220HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eSerial\/ID plate location: typically on the port-side transom bracket; the serial is also printed on a label under the engine cowl.\u003c\/li\u003e\n    \u003cli\u003eModel details on the tag: note horsepower, serial number, and any suffixes indicating shaft length (S\/L\/XL) and control type (tiller vs. remote).\u003c\/li\u003e\n    \u003cli\u003eFour-stroke identifiers: look for “FourStroke”\/“EFI” badging. Some larger models may show platform branding (e.g., larger cowl for V6 vs. compact Inline‑4).\u003c\/li\u003e\n    \u003cli\u003ePlatform cues (visual): Inline‑4 models (65–150HP) use a smaller, narrower cowl; 175–220HP models are typically V6 with a wider cowl and higher weight specification.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eEngine \/ Platform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eInline‑4 EFI FourStroke (approx. 65–150HP)\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 style=\"padding:6px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInline‑4, EFI 4‑stroke outboards; common in 75\/90\/115\/150HP classes.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e75–150HP FourStroke models across various years; remote or tiller variants; multiple shaft lengths.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGood fuel economy and mid‑range torque; broad parts availability; straightforward maintenance.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfirm parts by serial to account for year‑to‑year updates (filters, anodes, thermostat specs, gearcase options).\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 EFI FourStroke (approx. 175–220HP)\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 style=\"padding:6px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eV6, EFI 4‑stroke outboards commonly found in 175–220HP classes.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e175\/200\/225HP FourStroke families across multiple year ranges; various gearcase and rigging options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eStronger top‑end performance and higher charging capacity; robust cooling and gearcase options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSome parts differ from Inline‑4 engines (filters, anodes, plugs, pump kits). Always verify by serial and HP.\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=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for four‑stroke outboards; always follow your engine’s official service manual and local 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 style=\"padding:6px 0;\"\u003eEngine oil + filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eUse FC‑W marine oil and the correct OEM‑spec filter for your serial range.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e100\/300‑hour service kits\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAs scheduled\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePre‑bundled maintenance components simplify routine service.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect magnet and oil for metal; replace seals if water intrusion is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGap and heat range vary by platform; verify by serial\/HP.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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:6px 0;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e100 hours or sooner in harsh conditions\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eReplace more frequently with ethanol fuel or dirty fuel supply.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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:6px 0;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 2–3 seasons or 300 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEssential for proper cooling; replace sooner after sand\/silt ingestion.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAnodes (zinc\/aluminum\/magnesium)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eChoose alloy for your water type (salt\/brackish\/fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePropeller \u0026amp; hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect regularly\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCheck for dings, hub wear, and correct pitch for load\/performance.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px; color:#666; margin-top:8px;\"\u003e*Intervals are typical for many Mercury FourStroke models; always confirm requirements for your exact serial range and operating environment.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"margin-top:24px;\"\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\/mercury-water-pump-repair-kits\"\u003eMercury 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\u003eCorrosion Protection – \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase Sealing – \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePerformance Accessories – \u003ca href=\"https:\/\/seasierra.com\/collections\/propeller-guards\"\u003ePropeller Guards\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"margin-top:24px;\"\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 style=\"padding:6px 0;\"\u003eWeak telltale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect intake screens for debris; confirm strong telltale; verify impeller age.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWater pump kit, impeller, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCheck prop for damage\/cavitation; test fuel quality; replace fuel filter.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eFuel filter, spark plugs, propeller, anti‑ventilation\/hydrofoil accessory\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify battery charge and connections; inspect plugs; check for water in fuel.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs, inline fuel filter\/water separator, battery cables\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eDrain and inspect oil; look for water intrusion; pressure test if needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGear lube, lower unit seal kit, bearings, 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=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between Inline‑4 and V6 models?\u003c\/summary\u003e\n    \u003cp\u003eMany items differ (filters, plugs, anodes, water pump kits). Always confirm by engine serial number and horsepower before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eA common interval is every 2–3 seasons or ~300 hours, sooner if you run sandy\/silty water or notice a weak telltale stream.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should lower unit gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eTypically every 100 hours or annually. Inspect for metal and water intrusion; service seals if contamination is present.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the engine serial number, horsepower, approximate model year, shaft length, and whether it’s an Inline‑4 or V6. Photos of the nameplate help.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"margin-top:24px; padding:16px; border:1px solid #eef0f2; border-radius:8px;\"\u003e\n  \u003cp\u003eReady to find the right parts? Browse the main Mercury collection and use the filters to drill down by horsepower, year, and model family.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block; padding:10px 14px; background:#0a4; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px; font-size:12px; color:#666;\"\u003eIf you’re unsure about your model, send us a clear photo of the engine nameplate and the part you need—we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"water-pump-impeller-kit-fits-mercury-mercruiser-alpha-one-outboard-motors-replaces-46-96148a8-96148q8","title":"Water Pump Impeller Repair Kit for Mercury Outboards and MerCruiser Alpha One (Replaces 46-96148A8, 46-96148Q8)","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 impeller repair kit\u003c\/strong\u003e is designed for selected Mercury outboard water-pump applications and MerCruiser sterndrive systems using the large plastic water-pump housing configuration. It is intended for cooling-system service when the impeller, housing, wear surfaces, gaskets, or seals require replacement.\u003c\/p\u003e\n\u003cp\u003eCatalog references associate the applicable water-pump assembly with Mercury outboards from approximately 65 through 225 HP in selected applications and with MerCruiser MC-1, R, MR, and Alpha One units. Fitment depends on the exact model, engine configuration, and serial-number range. Always compare the original water-pump assembly and verify the serial number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket repair kit for selected Mercury and MerCruiser water-pump applications.\u003c\/li\u003e\n  \u003cli\u003eIncludes the upper pump housing and related service components shown in the package list below.\u003c\/li\u003e\n  \u003cli\u003eNeoprene impeller is intended to restore water-pump flow when the original impeller is worn, cracked, hardened, or damaged.\u003c\/li\u003e\n  \u003cli\u003eDesigned for applications corresponding to the large plastic housing associated with Mercury reference 46-96148A8.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReference Part Numbers\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are catalog and aftermarket reference numbers associated with this water-pump application. They are provided for comparison only and do not replace model and serial-number verification.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Reference Part Numbers\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand or Source\u003c\/th\u003e\n\u003cth\u003eReference Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e46-96148A8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e46-96148Q8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e46-96148T8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e96148A5\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e46-42579A4\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e46-44292A4\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e46-48747A3\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3320\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e12120\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-48307\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eMercury Outboard Compatibility\u003c\/h2\u003e\n\u003cp\u003eAvailable catalog evidence places the 46-96148A8 water-pump application on selected Mercury outboards, including the model and serial-number examples below. These entries should be treated as application guides rather than universal fitment for every engine carrying the same horsepower rating.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Mercury Outboard Compatibility\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eSerial Number Range\u003c\/th\u003e\n\u003cth\u003eApplication Note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003e650\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e4-cylinder\u003c\/td\u003e\n\u003ctd\u003e1542745–2309310\u003c\/td\u003e\n\u003ctd\u003eWater pump body assembly reference 46-96148A8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e700\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003e6-cylinder\u003c\/td\u003e\n\u003ctd\u003e1413611–1566239\u003c\/td\u003e\n\u003ctd\u003eWater pump body assembly reference 46-96148A8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e850\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003ctd\u003e6-cylinder\u003c\/td\u003e\n\u003ctd\u003e1460999–1766823\u003c\/td\u003e\n\u003ctd\u003eWater pump body assembly reference 46-96148A8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e900\u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003ctd\u003e6-cylinder\u003c\/td\u003e\n\u003ctd\u003e1766824–1869775\u003c\/td\u003e\n\u003ctd\u003eWater pump body assembly reference 46-96148A8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e950\u003c\/td\u003e\n\u003ctd\u003e95\u003c\/td\u003e\n\u003ctd\u003e6-cylinder\u003c\/td\u003e\n\u003ctd\u003e1869776–2318585\u003c\/td\u003e\n\u003ctd\u003eWater pump body assembly reference 46-96148A8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003eMulti-cylinder\u003c\/td\u003e\n\u003ctd\u003e1464949–2318585\u003c\/td\u003e\n\u003ctd\u003eVerify the exact engine configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e1100\u003c\/td\u003e\n\u003ctd\u003e110\u003c\/td\u003e\n\u003ctd\u003eMulti-cylinder\u003c\/td\u003e\n\u003ctd\u003e1870204–2314955\u003c\/td\u003e\n\u003ctd\u003eVerify the exact engine configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSelected V-135, V-150, and V-175 models\u003c\/td\u003e\n\u003ctd\u003e135–175\u003c\/td\u003e\n\u003ctd\u003e2-stroke applications shown in catalog diagrams\u003c\/td\u003e\n\u003ctd\u003eVaries by model\u003c\/td\u003e\n\u003ctd\u003eSerial-number verification is required\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eAdditional catalog references indicate selected Mercury applications through approximately 225 HP, generally within older 2-stroke model ranges. Horsepower alone is not sufficient to confirm fitment; compare the original housing, plate, impeller, drive key, and serial-number range.\u003c\/p\u003e\n\n\u003ch2\u003eMerCruiser Sterndrive Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis water-pump application is associated with selected MerCruiser MC-1, R, MR, and Alpha One sterndrives. Some reference listings identify Alpha One applications from approximately 1983–1990, while other catalogs list serial-number-specific applications. Confirm the sterndrive serial number and water-pump configuration before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"MerCruiser Sterndrive Compatibility\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eReference or Condition\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eMC-1\u003c\/td\u003e\n\u003ctd\u003eApplication reference associated with 46-96148T8\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eR\u003c\/td\u003e\n\u003ctd\u003eVerify sterndrive serial number and housing configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eMR\u003c\/td\u003e\n\u003ctd\u003eSelected applications; verify serial number\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eAlpha One\u003c\/td\u003e\n\u003ctd\u003eSelected early Alpha One applications; verify serial number before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket water pump impeller repair kit\u003c\/dd\u003e\n  \u003cdt\u003ePrimary Application\u003c\/dt\u003e\n  \u003cdd\u003eSelected Mercury outboards and MerCruiser sterndrive water-pump systems\u003c\/dd\u003e\n  \u003cdt\u003eHousing Style\u003c\/dt\u003e\n  \u003cdd\u003eLarge plastic water-pump housing application\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n  \u003cdd\u003eNylon PA66 plastic, as listed for the aftermarket housing\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n  \u003cdd\u003eNeoprene rubber\u003c\/dd\u003e\n  \u003cdt\u003eApproximate Base Size\u003c\/dt\u003e\n  \u003cdd\u003e2.356 inches (59.8 mm), as listed for this application\u003c\/dd\u003e\n  \u003cdt\u003eApproximate Product Weight\u003c\/dt\u003e\n  \u003cdd\u003e330 grams (0.73 lb), as listed for this application\u003c\/dd\u003e\n  \u003cdt\u003eFitment Requirement\u003c\/dt\u003e\n  \u003cdd\u003eExact model, configuration, housing style, and serial-number verification required\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cp\u003eThis repair kit is supplied with the following service components:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × water-pump impeller\u003c\/li\u003e\n  \u003cli\u003e1 × upper pump housing\u003c\/li\u003e\n  \u003cli\u003e1 × face plate\u003c\/li\u003e\n  \u003cli\u003e1 × drive key or impeller pin\u003c\/li\u003e\n  \u003cli\u003e1 × face seal\u003c\/li\u003e\n  \u003cli\u003e1 × seal carrier\u003c\/li\u003e\n  \u003cli\u003e1 × water-tube coupling\u003c\/li\u003e\n  \u003cli\u003e1 × gasket set\u003c\/li\u003e\n  \u003cli\u003e1 × O-ring set\u003c\/li\u003e\n  \u003cli\u003e2 × gear-lubricant fill and vent screw seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e the water-pump base. The included housing and components are intended for a repair configuration that uses the existing compatible base and lower-unit components.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and prevent accidental engine starting.\u003c\/li\u003e\n  \u003cli\u003ePlace the engine or sterndrive in a safe service position and follow the manufacturer’s procedure for lower-unit removal.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit and expose the water-pump assembly.\u003c\/li\u003e\n  \u003cli\u003eRemove the pump housing, impeller, face plate, gaskets, seals, and drive key. Note the original impeller-vane orientation.\u003c\/li\u003e\n  \u003cli\u003eClean all mating surfaces and remove old gasket material, corrosion, and debris.\u003c\/li\u003e\n  \u003cli\u003eInstall the new gasket, face plate, drive key, and impeller. Use a suitable marine lubricant and rotate the driveshaft in the manufacturer-specified direction while seating the impeller vanes.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement housing, seals, coupling, and remaining components. Tighten fasteners to the engine or sterndrive manufacturer’s specifications.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, ensuring correct alignment of the water tube, driveshaft, and shift mechanism.\u003c\/li\u003e\n  \u003cli\u003eRun the engine only with an appropriate water supply. Check for a steady cooling-water discharge and monitor engine temperature.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eMaintenance and Troubleshooting\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat symptoms can indicate a worn impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include overheating at idle or low speed, a weak or intermittent tell-tale stream, reduced cooling-water flow, and an impeller that is cracked, brittle, permanently deformed, or missing vane material.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the impeller be inspected?\u003c\/summary\u003e\n  \u003cp\u003eInspect the impeller during routine seasonal service and replace it when wear or damage is found. Engines operated in saltwater, sand, silt, or debris-laden water may require more frequent inspection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes the kit include the water-pump base?\u003c\/summary\u003e\n  \u003cp\u003eNo. The water-pump base is not included. This kit includes the upper housing and the service components listed in the package contents section and is intended to use a compatible existing base.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit every Mercury V6 or every Alpha One sterndrive?\u003c\/summary\u003e\n  \u003cp\u003eNo. The reference number appears across multiple Mercury and MerCruiser applications, but model, configuration, housing style, and serial-number conditions must remain aligned. Verify the original assembly and serial number before purchase.\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 kit. Mercury and MerCruiser names and reference numbers are used only to identify the applications and comparison references for which the kit may be suitable.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDo not rely on horsepower alone for fitment. Confirm the exact model, configuration, housing style, and serial number.\u003c\/li\u003e\n  \u003cli\u003eCompare the original parts and the product images before installation.\u003c\/li\u003e\n  \u003cli\u003eDo not operate an outboard or sterndrive without an adequate water supply.\u003c\/li\u003e\n  \u003cli\u003eUse the manufacturer’s service manual for torque values, shift-shaft procedures, and final testing.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when lower-unit removal or shift-linkage adjustment is 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 aftermarket components for routine service and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Reference numbers and fitment guidance are provided to support compatibility checks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService-Ready Kits\u003c\/strong\u003e — Replacement components are grouped for common water-pump maintenance tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723980771643,"sku":"17KM002-P","price":48.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_MR-Alpha_One_46-96148A8_-_JLM_MARINE-8289827.jpg?v=1763039232"}],"url":"https:\/\/seasierra.com\/collections\/mercury-4-stroke-outboard-engine-65-220hp-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}