{"title":"Mercury 2-Stroke Outboard Engine Parts 40-300HP","description":"\u003csection id=\"hero\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;max-width:1000px;margin:0 auto 20px auto;\"\u003e\n  \u003cp\u003eModel guide and parts hub for Mercury 2‑Stroke 40–300HP outboard engines. Use this page to find compatible categories, routine maintenance recommendations, and troubleshooting tips. You can also browse our main Mercury collection, and at the bottom of this page start browsing parts for your engine. On the collection page, use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#111827;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=\"max-width:1000px;margin:0 auto 24px auto;\"\u003e\n  \u003ch2\u003eHow to Identify Your 40–300HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the serial\/nameplate on the transom bracket or swivel bracket. Record the full serial number and any model suffix (e.g., ELPT).\u003c\/li\u003e\n    \u003cli\u003eDecode common suffixes: E = Electric start, L\/XL = 20\/25 in shaft, P\/T = Power Trim, T = Tiller; combinations like ELPT indicate Electric start, Long shaft, Power Trim.\u003c\/li\u003e\n    \u003cli\u003eDistinguish platforms: earlier 40HP models may be 2‑cyl twin or inline‑4 “Classic 40,” mid‑’90s and newer 40\/50\/60 are often inline‑3; larger 135–300HP are V6 (carb\/EFI or Optimax DFI).\u003c\/li\u003e\n    \u003cli\u003eOil system: verify premix (typically 50:1) vs. oil‑injection. If equipped, note the remote oil tank and hoses when ordering service parts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"max-width:1000px;margin:0 auto 24px auto;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003e40HP “Classic” Families (Twin \u0026amp; Inline‑4, carbureted)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eCarbureted 2‑Stroke; found as 2‑cyl “402” twin or inline‑4 “Classic 40.” Lightweight, simple ignition and fuel systems.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eMercury 40HP 2‑cyl twin; Mercury 40HP inline‑4 “Classic 40.”\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eSimple to service; good parts availability for tune‑up and cooling system.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eVerify cylinder count when ordering ignition, carburetor, and water‑pump parts. Many wear items overlap with 40\/50\/60 families, but not all.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003e40\/50\/60HP Inline‑3 (59 cu in) carbureted\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eInline‑3 carbureted 2‑Stroke, widely used on 40\/50\/60HP. Commonly referenced as the “59ci” block.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eMercury 40\/50\/60HP 2‑Stroke inline‑3 (various carb families).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eStrong mid‑range torque and broad parts coverage; popular on mid‑’90s and newer two‑strokes.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCooling and gearcase service is similar across 40\/50\/60 variants; verify carb style and linkage parts by serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eMid‑Range Inline (75–125HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eInline‑3 (75–90) and inline‑4 (90–125) 2‑Stroke, carb or early EFI depending on year\/serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003e75\/90 inline‑3; 90\/115\/125 inline‑4 2‑Stroke.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eWidely supported; robust gearcases; straightforward carb\/ignition service.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfirm cylinder count and induction type (carb vs. EFI) when ordering ignition, fuel, and cooling parts.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 135–300HP (Carb\/EFI \u0026amp; Optimax DFI)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eV6 2‑Stroke in carb and EFI forms; Optimax DFI (air‑assisted direct injection) on many 135–300HP models.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003e135\/150\/175\/200\/225\/250\/300 2‑Stroke (carb, EFI, Optimax variants).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eHigh output with strong parts support; Optimax provides improved efficiency and emissions vs. carb\/EFI.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eOptimax uses DFI‑specific fuel\/air components. Always confirm by serial when ordering injectors, compressors, and sensors.\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 24px auto;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines; always follow the official service manual for your specific serial number and model.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eLower unit gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eInspect for water intrusion (milky oil) and metal debris; replace seals if needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Collection\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003e100 hours \/ season\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eReplace or clean and gap per spec; misfire and hard starting often trace to plugs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\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 #f3f4f6;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003e100 hours \/ season\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eKeep spare filters onboard; ethanol fuel and debris are common issues.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eEvery 2 seasons (or 100 hours in sandy\/silty water)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eWeak tell‑tale or overheat alarms often indicate impeller wear; renew full kit if housing is scored.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\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:8px;border-bottom:1px solid #f3f4f6;\"\u003eAnodes (sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eInspect every 50 hours; replace when 50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eChoose the correct alloy for fresh, brackish, or salt water to reduce corrosion.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\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:8px;border-bottom:1px solid #f3f4f6;\"\u003e2‑Stroke oil injection \/ premix\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eCheck each season\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eInspect injection hoses, strainer, and tank cap; if premix, confirm ratio (commonly 50:1) per manual.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Collection\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eThermostat inspection\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 2 years\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eStuck‑open thermostats cause cold running and excess fuel use; stuck‑closed can overheat.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Collection\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 24px 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\/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 and \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\"\u003eFuel Pumps\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\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\u003ePropulsion — \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/propeller-guards\"\u003ePropeller Guards\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  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:1000px;margin:0 auto 24px 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 #e5e7eb;padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eInspect intake screens for blockage; test water pump output; check thermostat for sticking.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eWater pump kit, intake screen, thermostat, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eVerify fresh fuel and correct oil ratio; replace fuel filter; inspect spark plugs and plug wires.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eFuel filter, fuel pump, spark plugs, ignition components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eSqueeze primer bulb firm; confirm choke\/enrichment operation; check for fouled plugs or carb varnish.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eSpark plugs, carburetor service parts, fuel lines\/bulb\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eConfirm premix ratio or oil‑injection setting; check stuck choke and float height.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6;\"\u003eCarburetor parts, choke\/solenoid components, oil system hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise \/ metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eDrain and inspect oil; check prop shaft for fishing line; evaluate seals and bearings.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, bearings, gear lube\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 24px 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 wear items (impellers, anodes, basic ignition components) may cross over, but many fuel, ignition, and cooling parts are platform‑ and serial‑specific. Always confirm by serial number and configuration (twin, inline‑3\/4, V6; carb, EFI, or Optimax DFI).\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs a rule, replace the impeller every two seasons—sooner if you boat in sandy or silty water or see a weak tell‑tale. Consider a full water‑pump kit if the wear plate or housing is scored.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eChange lower unit gear oil every 100 hours or annually. If the drained oil is milky (water intrusion) or contains metal, service seals and investigate bearing\/gear wear before reuse.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the engine’s serial number, horsepower, shaft length, control type (tiller\/remote), and whether it is carb, EFI, or Optimax. Photos of the nameplate and the part to be replaced help ensure a correct match.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;max-width:1000px;margin:0 auto;\"\u003e\n  \u003cp\u003eReady to find parts for your Mercury 2‑Stroke 40–300HP? Browse the main Mercury collection to filter by horsepower, year, and category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;margin:8px 0 6px 0;padding:10px 14px;background:#111827;color:#fff;text-decoration:none;border-radius:6px;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"color:#4b5563;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"water-pump-impeller-kit-fits-mercury-marine-40-300-hp-replaces-47-43026t06-8m0100526","title":"Water Pump Impeller Kit with Housing – Mercury Marine Cross-Reference 47-43026T06, 8M0100526","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller kit with housing\u003c\/strong\u003e is intended for selected Mercury Marine outboard and related marine cooling-system applications that use the listed reference numbers. It is designed to restore water-pump circulation when an impeller, housing, face plate, gaskets, seals, or related sealing components are worn.\u003c\/p\u003e\n\u003cp\u003eAvailable cross-reference information associates this application with Mercury Marine numbers \u003cstrong\u003e47-43026T06\u003c\/strong\u003e, \u003cstrong\u003e8M0100526\u003c\/strong\u003e, and \u003cstrong\u003e47-43026Q06\u003c\/strong\u003e. Aftermarket reference numbers include Sierra \u003cstrong\u003e18-3214\u003c\/strong\u003e, GLM \u003cstrong\u003e12042\u003c\/strong\u003e, and Mallory \u003cstrong\u003e9-48313\u003c\/strong\u003e. These numbers are provided for identification and comparison; verify the complete part configuration and your engine's serial-number range before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement water-pump components for selected Mercury Marine applications.\u003c\/li\u003e\n  \u003cli\u003eIncludes an impeller, housing, face plate, key, gaskets, seal, and O-rings as listed below.\u003c\/li\u003e\n  \u003cli\u003eHelps restore cooling-water circulation and maintain proper engine operating temperature.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement; not manufactured by Mercury Marine, Sierra, GLM, or Mallory.\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 leads. Matching the exact number on your existing assembly is recommended before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eReference 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\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026T06\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\u003e8M0100526\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\u003e47-43026Q06\u003c\/td\u003e\n\u003ctd\u003eOEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3214\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\u003e12042\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\u003e9-48313\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; Application Information\u003c\/h2\u003e\n\u003cp\u003ePublished catalog references associate 47-43026Q06 with selected Mercury Marine applications including certain 4-Stroke 40–115 HP four-cylinder engines from 2001 and later, and certain 2-Stroke 65–225 HP applications from 1963–1998 using a large metal housing. Another catalog lists 8M0100526 in a 40–350 HP reference range. These ranges are not a universal fitment statement: Mercury model, year, engine configuration, housing style, and serial number must all be checked together.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Reference Application Information\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eApplication Reference\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eYear \/ Serial Conditions\u003c\/th\u003e\n        \u003cth\u003eImportant Notes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003eSelected 4-cylinder outboards\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e40–115 HP\u003c\/td\u003e\n        \u003ctd\u003e2001 and later\u003c\/td\u003e\n        \u003ctd\u003eCatalog reference associated with 47-43026Q06; confirm the exact model and assembly.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003eSelected large-housing applications\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e65–225 HP\u003c\/td\u003e\n        \u003ctd\u003e1963–1998\u003c\/td\u003e\n        \u003ctd\u003eCatalog reference specifies a large metal housing; housing style must match.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003eSelected outboard applications\u003c\/td\u003e\n        \u003ctd\u003eNot confirmed by this reference alone\u003c\/td\u003e\n        \u003ctd\u003e40–350 HP catalog range\u003c\/td\u003e\n        \u003ctd\u003eNot specified\u003c\/td\u003e\n        \u003ctd\u003e8M0100526 is shown in a catalog range, but the exact model, year, and serial conditions still require verification.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eWater pump impeller kit with housing\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement assembly; compare the original parts before installation\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n  \u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n  \u003cdd\u003eApplication-specific direct replacement when the reference number and assembly configuration match\u003c\/dd\u003e\n  \u003cdt\u003eFunction\u003c\/dt\u003e\n  \u003cdd\u003eWater-pump component for outboard engine cooling-water circulation\u003c\/dd\u003e\n  \u003cdt\u003eBrand Status\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement, not an OEM component\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Impeller\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Impeller Key\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Face Plate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Face Seal, reference 26-816575A2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2\u003c\/span\u003e x Impeller Gasket, reference 27-817277\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Impeller Gasket, reference 27-430331\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Seal Ring Gasket, reference 26-45577\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2\u003c\/span\u003e x O-Ring, reference 25-21836\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1\u003c\/span\u003e x Water Pump Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and make sure the engine is completely cool before starting work.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit or gearcase according to the service procedure for your exact engine.\u003c\/li\u003e\n  \u003cli\u003eLocate and remove the water-pump housing fasteners.\u003c\/li\u003e\n  \u003cli\u003eRemove the old housing, impeller, face plate, gaskets, seals, and key while noting their orientation.\u003c\/li\u003e\n  \u003cli\u003eClean all mating surfaces carefully and remove old gasket material, debris, and corrosion.\u003c\/li\u003e\n  \u003cli\u003eInstall the supplied gaskets, seals, face plate, key, and impeller in the correct order for your pump design.\u003c\/li\u003e\n  \u003cli\u003eInstall the housing over the impeller. Rotate the driveshaft in the specified direction while seating the impeller blades; follow the engine service manual.\u003c\/li\u003e\n  \u003cli\u003eSecure the housing with the original fasteners and tighten them to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, ensuring correct driveshaft and water-tube alignment.\u003c\/li\u003e\n  \u003cli\u003eTest the engine in an appropriate water source or with the correct flushing equipment. Confirm a normal 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\u003csummary\u003eHow do I know if my water-pump impeller needs replacing?\u003c\/summary\u003e\u003cp\u003eCommon warning signs include a weak or absent tell-tale stream, overheating alarms, rising operating temperature, or a damaged, melted, cracked, or deformed impeller during inspection. Replacement intervals depend on the engine, operating conditions, and manufacturer's maintenance schedule.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this kit fit my specific Mercury model?\u003c\/summary\u003e\u003cp\u003eDo not rely on horsepower alone. Compare your complete OEM reference number, engine model, year, stroke, housing style, and serial-number range with the application information. If your original assembly differs from the included components or housing, do not install the kit without confirming compatibility.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is a common cause of premature impeller failure?\u003c\/summary\u003e\u003cp\u003eRunning an outboard without an adequate water supply can damage a rubber impeller within seconds. Sand, debris, corrosion, extended storage, age, and incorrect installation can also shorten service life.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShould I replace the housing with the impeller?\u003c\/summary\u003e\u003cp\u003eA worn or grooved housing or face plate can reduce pump efficiency and damage a new impeller. Because this listing includes a housing and related sealing components, compare the supplied parts with the original assembly and replace components as appropriate for the engine's service procedure.\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. Mercury Marine, Sierra, GLM, and Mallory names and reference numbers are used only to identify compatibility and cross-reference applications.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I do if the reference number matches but the parts look different?\u003c\/summary\u003e\u003cp\u003eDo not force installation. Confirm the engine's exact model, year, stroke, serial range, housing design, and original component arrangement before ordering or installing the kit.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed and cost\u003c\/summary\u003e\u003cp\u003eTypical transit is 5–15 days. Standard shipping is free for most orders, and any available expedited options are shown at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty and returns\u003c\/summary\u003e\u003cp\u003eThis part is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window when the part is unused and in its original condition. Contact support with your order details for assistance.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the exact OEM reference, engine model, year, stroke, housing style, and serial-number range before purchase.\u003c\/li\u003e\n  \u003cli\u003eConfirm that the supplied housing, impeller, face plate, key, gaskets, seals, and O-rings match your original water-pump assembly.\u003c\/li\u003e\n  \u003cli\u003eNever operate an outboard without an adequate water supply and proper flushing equipment.\u003c\/li\u003e\n  \u003cli\u003eFollow the manufacturer's service manual for torque values, sealants, lubrication, alignment, and testing procedures.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component. Brand names are used for reference only.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended. Incorrect installation can cause loss of cooling water and serious engine damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts designed for dependable real-world service.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery is available to most regions, typically arriving in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We work to provide practical replacement solutions at competitive prices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723973595451,"sku":"20KM001-H","price":72.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_40-300_HP_47-43026T06_with_Housing_-_JLM_MARINE-8289909.jpg?v=1763038909"},{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-replaces-47-43026t06-8m0100526","title":"Water Pump Impeller Repair Kit for Mercury\/Mariner – Replaces 47-43026T06, 8M0100526","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 as a replacement for selected Mercury and Mariner outboard water-pump applications using the listed reference numbers. It is intended to restore water-pump sealing and impeller performance during routine cooling-system service.\u003c\/p\u003e\n\u003cp\u003eReference information identifies this impeller repair kit with Mercury Marine numbers \u003cstrong\u003e47-43026T06\u003c\/strong\u003e, \u003cstrong\u003e47-43026Q06\u003c\/strong\u003e, and \u003cstrong\u003e8M0100526\u003c\/strong\u003e. Similar applications may use different pump housings, plates, seals, or serial-number conditions, so confirm the complete engine model and original part number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement impeller service kit for selected Mercury and Mariner applications.\u003c\/li\u003e\n  \u003cli\u003eHelps restore water circulation and cooling-system performance when the old impeller or sealing parts are worn.\u003c\/li\u003e\n  \u003cli\u003eSupplied as an aftermarket replacement; it is not a Mercury Marine OEM component.\u003c\/li\u003e\n  \u003cli\u003eInstallation should follow the engine manufacturer's service procedure and torque specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following references are provided for identification and cross-reference purposes. A reference number alone does not replace model, year, serial-number, and pump-housing verification.\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 or Reference\u003c\/th\u003e\n\u003cth\u003ePart Number\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\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026T06\u003c\/td\u003e\n\u003ctd\u003ePrimary OEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026Q06\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e8M0100526\u003c\/td\u003e\n\u003ctd\u003eListed replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3214\u003c\/td\u003e\n\u003ctd\u003eImpeller repair-kit cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e12042\u003c\/td\u003e\n\u003ctd\u003eCatalog cross-reference; verify pump-housing details\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-48313\u003c\/td\u003e\n\u003ctd\u003eCatalog number reference; verify before purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eCompatibility depends on the complete water-pump configuration, engine model, year, stroke, and serial number. The references below are useful application leads, but they should be checked against the identification plate and the part removed from your engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Mercury and Mariner Compatibility Guidance\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eRated HP or Configuration\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear Condition\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003cth\u003eVerification Note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eFour-cylinder outboard applications\u003c\/td\u003e\n\u003ctd\u003e40–115 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2001 and newer catalog application\u003c\/td\u003e\n\u003ctd\u003e47-43026Q06\u003c\/td\u003e\n\u003ctd\u003eConfirm model and pump-housing design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected Verado applications\u003c\/td\u003e\n\u003ctd\u003e135–275 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005 and newer catalog application\u003c\/td\u003e\n\u003ctd\u003e47-43026Q06\u003c\/td\u003e\n\u003ctd\u003eConfirm serial range and water-pump assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eApplications using a large metal water-pump housing\u003c\/td\u003e\n\u003ctd\u003e65–225 HP\u003c\/td\u003e\n\u003ctd\u003eVerify engine\u003c\/td\u003e\n\u003ctd\u003eApplication varies by model and year\u003c\/td\u003e\n\u003ctd\u003e47-43026Q06\u003c\/td\u003e\n\u003ctd\u003eHousing style must match before installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOther listed replacement applications\u003c\/td\u003e\n\u003ctd\u003e40 HP and above\u003c\/td\u003e\n\u003ctd\u003e2-Stroke or 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eVaries by model and serial number\u003c\/td\u003e\n\u003ctd\u003e47-43026T06 \/ 8M0100526\u003c\/td\u003e\n\u003ctd\u003eDo not rely on horsepower alone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eDo not assume fitment from a similar horsepower rating. Mercury and Mariner engines can use different impeller dimensions, pump housings, face plates, gaskets, and serial-number break points. Compare the original part number and water-pump assembly before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater pump impeller repair kit\u003c\/dd\u003e\n  \u003cdt\u003eReplacement Type\u003c\/dt\u003e\n\u003cdd\u003eAftermarket replacement\u003c\/dd\u003e\n  \u003cdt\u003ePrimary OEM Reference\u003c\/dt\u003e\n\u003cdd\u003e47-43026T06\u003c\/dd\u003e\n  \u003cdt\u003eAdditional References\u003c\/dt\u003e\n\u003cdd\u003e47-43026Q06 and 8M0100526\u003c\/dd\u003e\n  \u003cdt\u003eKnown Aftermarket Reference\u003c\/dt\u003e\n\u003cdd\u003eSierra 18-3214\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eService replacement; follow the applicable manufacturer's procedure\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cp\u003eThis listing is for a water-pump impeller repair kit. Kit contents can vary by production batch and application, so compare the supplied parts with the pump components being replaced before disassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWater-pump impeller\u003c\/li\u003e\n  \u003cli\u003eImpeller key\u003c\/li\u003e\n  \u003cli\u003eApplication-specific gaskets and sealing components\u003c\/li\u003e\n  \u003cli\u003eAdditional water-pump service components as supplied for the applicable kit configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eIdentify the engine model, year, stroke, and serial number, then compare the original impeller and water-pump components with the replacement kit.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery and place the engine in a safe service position. Follow the manufacturer's safety instructions.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the applicable service manual, supporting it securely during removal.\u003c\/li\u003e\n  \u003cli\u003eOpen the water-pump assembly and note the impeller-key location, impeller rotation direction, and order of the seals and gaskets.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller, key, gaskets, and other service parts being replaced. Inspect the housing and face plate for scoring, distortion, melting, or excessive wear.\u003c\/li\u003e\n  \u003cli\u003eReplace damaged housing or face-plate components before installing the new impeller. A worn housing can cause poor water flow and premature impeller failure.\u003c\/li\u003e\n  \u003cli\u003eInstall the new key and impeller in the correct orientation. Use the manufacturer's recommended lubricant or installation method.\u003c\/li\u003e\n  \u003cli\u003eInstall the new gaskets, seals, and O-rings in their correct locations. Do not reuse damaged sealing components.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water-pump housing and tighten fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, ensuring correct alignment of the driveshaft, shift shaft, and water tube.\u003c\/li\u003e\n  \u003cli\u003eRun the engine only with an appropriate water supply and verify a steady tell-tale stream. Stop immediately if the engine overheats or water flow is abnormal.\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 kit fits my engine?\u003c\/summary\u003e\u003cp\u003eCompare your engine's model, year, stroke, serial number, original impeller, and water-pump housing with the listed references. The safest check is a matching OEM part number together with a matching pump configuration. Horsepower alone is not sufficient.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon signs include a weak or intermittent tell-tale stream, overheating warnings, rising engine temperature, or steam from the exhaust. Stop operation and inspect the cooling system promptly to avoid engine damage.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\u003cp\u003eInspect the impeller according to the engine manufacturer's maintenance schedule. Replacement intervals depend on operating hours, storage conditions, and exposure to sand, silt, salt water, or prolonged storage.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this kit with a damaged pump housing?\u003c\/summary\u003e\u003cp\u003eNo. Deep grooves, scoring, distortion, melting, or excessive corrosion in the housing or face plate can prevent proper sealing and water flow. Replace damaged pump components before installing a new impeller.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich way should the impeller vanes face?\u003c\/summary\u003e\u003cp\u003eInstall the impeller according to the shaft-rotation direction specified by the engine service manual. Do not rely on a generic clockwise instruction because shaft rotation and installation orientation can vary by application.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement kit that references the listed Mercury Marine part numbers for identification and application matching. Mercury, Mariner, Sierra, GLM, and Mallory are trademarks of their respective owners.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, year, stroke, serial number, original part number, and pump-housing configuration before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not operate an outboard without an adequate water supply.\u003c\/li\u003e\n  \u003cli\u003eUse the correct service manual for torque values, seal locations, lower-unit removal, and impeller orientation.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when lower-unit or water-pump service procedures are unfamiliar.\u003c\/li\u003e\n  \u003cli\u003eImages and reference numbers are for identification; supplied kit contents may vary by application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — We supply aftermarket components for routine marine maintenance and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Information\u003c\/strong\u003e — Product references are presented to help customers compare parts before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Maintenance Projects\u003c\/strong\u003e — Always verify the complete engine and component details for a correct installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723973628219,"sku":"20KM001","price":41.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_40-300_HP_47-43026T06_06192--ZW1-003_-_JLM_MARINE-8289897.jpg?v=1763038911"},{"product_id":"water-pump-impeller-fits-mercury-mariner-honda-40-300hp-replaces-47-43026t2","title":"Water Pump Impeller for Honda 70\/90 HP and Mercury\/Mariner 2-Stroke 60–225 HP \u0026 4-Stroke 30–300 HP","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller\u003c\/strong\u003e is a replacement cooling-system service part for selected Honda Marine, Mercury, and Mariner outboards. Company fitment records identify applications including Honda 70 HP and 90 HP outboards, Mercury\/Mariner 2-stroke engines from 60 to 225 HP, and Mercury\/Mariner 4-stroke engines from 30 to 300 HP.\u003c\/p\u003e\n\u003cp\u003eThe impeller is supplied as a \u003cstrong\u003esingle replacement impeller\u003c\/strong\u003e. It is not a complete water pump kit and does not include a gasket, wear plate, housing, or drive key. Always compare the original impeller and verify the exact engine model, stroke, and serial-number range before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket replacement for selected marine outboard water-pump applications.\u003c\/li\u003e\n\u003cli\u003eApplicable reference numbers include Mercury 47-43026T2 and 47-43026Q02, Honda 19210-ZW1-003 and 19210-ZW1-303, and Sierra 18-3056 and 18-3056-10.\u003c\/li\u003e\n\u003cli\u003eNominal dimensions: 89 mm outside diameter, 22.4 mm inside diameter, and 32.5 mm width.\u003c\/li\u003e\n\u003cli\u003eDesigned for routine water-pump maintenance when the replacement part number and dimensions match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are reference identifiers associated with this impeller. They are provided for cross-reference purposes and should be confirmed against your engine application.\u003c\/p\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\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\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\u003eMercury \/ Mariner\u003c\/td\u003e\n        \u003ctd\u003e47-43026T2\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e47-43026Q02\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003e19210-ZW1-003\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003e19210-ZW1-303\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3056\u003c\/td\u003e\n        \u003ctd\u003eAftermarket reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3056-10\u003c\/td\u003e\n        \u003ctd\u003eAftermarket pack reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-45037\u003c\/td\u003e\n        \u003ctd\u003eAdditional aftermarket reference\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\u003eCompatibility depends on the complete engine configuration. Match the part number, engine stroke, model, and serial-number range rather than relying on horsepower alone.\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\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eApplication Notes\u003c\/th\u003e\n        \u003cth\u003eReference Numbers\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 Honda outboards\u003c\/td\u003e\n        \u003ctd\u003e70 \/ 90\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eVerify the exact BF model and serial range before ordering.\u003c\/td\u003e\n        \u003ctd\u003e19210-ZW1-003; 19210-ZW1-303\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n        \u003ctd\u003eSelected 2-stroke outboards\u003c\/td\u003e\n        \u003ctd\u003e60–225\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003eConfirm the engine model and serial-number range.\u003c\/td\u003e\n        \u003ctd\u003e47-43026T2; 47-43026Q02\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n        \u003ctd\u003eSelected 4-stroke outboards\u003c\/td\u003e\n        \u003ctd\u003e30–300\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eIncludes listed applications such as 30, 40, 45, 50, 60, 80, 100, 115, 135, 150, 175, 200, 225, 250, 275, and 300 HP configurations; verify model and serial details.\u003c\/td\u003e\n        \u003ctd\u003e47-43026T2; 47-43026Q02\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003eAlpha I Generation II drives\u003c\/td\u003e\n        \u003ctd\u003eNot specified\u003c\/td\u003e\n        \u003ctd\u003eNot specified\u003c\/td\u003e\n        \u003ctd\u003eCatalog reference for the new-style 18-3056 impeller: serial number D494569 and above. Confirm the drive configuration before purchase.\u003c\/td\u003e\n        \u003ctd\u003e18-3056\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 The application lists above are not a substitute for checking the engine identification label, service manual, existing impeller, and serial-number range.\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 impeller\u003c\/dd\u003e\n  \u003cdt\u003eProduct Configuration\u003c\/dt\u003e\n  \u003cdd\u003eSingle replacement impeller\u003c\/dd\u003e\n  \u003cdt\u003eOutside Diameter\u003c\/dt\u003e\n  \u003cdd\u003e89 mm\u003c\/dd\u003e\n  \u003cdt\u003eInside Diameter\u003c\/dt\u003e\n  \u003cdd\u003e22.4 mm\u003c\/dd\u003e\n  \u003cdt\u003eWidth\u003c\/dt\u003e\n  \u003cdd\u003e32.5 mm\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement installation in the existing water-pump assembly\u003c\/dd\u003e\n  \u003cdt\u003eDrive Key\u003c\/dt\u003e\n  \u003cdd\u003eNot included; some applications require a separate impeller key\u003c\/dd\u003e\n  \u003cdt\u003eGaskets and Wear Plate\u003c\/dt\u003e\n  \u003cdd\u003eNot included\u003c\/dd\u003e\n  \u003cdt\u003eBrand Status\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement; not an OEM-branded component\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\u003eNo drive key, gasket, wear plate, housing, or complete water-pump assembly is included.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eConfirm the replacement part number, dimensions, engine stroke, model, and serial-number range before beginning work.\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery and follow the engine manufacturer's safety procedures.\u003c\/li\u003e\n\u003cli\u003eRemove the lower unit or sterndrive components as required by the service manual.\u003c\/li\u003e\n\u003cli\u003eRemove the water-pump housing and inspect the housing, wear plate, gasket surfaces, and drive key.\u003c\/li\u003e\n\u003cli\u003eRemove the old impeller and clean debris from the water-pump cavity.\u003c\/li\u003e\n\u003cli\u003eReplace damaged or worn related components before installing the new impeller. A new key, gasket, or wear plate may need to be purchased separately for your application.\u003c\/li\u003e\n\u003cli\u003eInstall the impeller in the correct orientation according to the service manual, using a compatible marine-safe lubricant or installation method.\u003c\/li\u003e\n\u003cli\u003eReassemble the water-pump housing and lower unit using the manufacturer's specified torque values.\u003c\/li\u003e\n\u003cli\u003eRun the engine only as permitted by the service manual and verify a normal cooling-water telltale stream and operating temperature.\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 impeller fits my engine?\u003c\/summary\u003e\n\u003cp\u003eMatch your existing OEM or aftermarket part number to the Part Number Matrix, then verify the engine model, stroke, horsepower, and serial-number range. For Honda applications, the listed references are 19210-ZW1-003 and 19210-ZW1-303. For Mercury and Mariner applications, verify the listed 47-43026T2 or 47-43026Q02 reference and the complete engine configuration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this a complete water-pump kit?\u003c\/summary\u003e\n\u003cp\u003eNo. This listing is for one replacement impeller only. It does not include the drive key, gasket, wear plate, housing, or other water-pump components.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs a drive key included?\u003c\/summary\u003e\n\u003cp\u003eNo. Some water-pump assemblies require a separate drive key. Inspect the existing key and consult the service manual for the correct replacement key for your engine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are common signs of a worn impeller?\u003c\/summary\u003e\n\u003cp\u003eSymptoms can include reduced cooling-water flow, a weak telltale stream, overheating at idle or low speed, or a high-temperature warning. Replace the impeller if the blades are cracked, brittle, deformed, or missing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow often should an impeller be replaced?\u003c\/summary\u003e\n\u003cp\u003eInspect the impeller during scheduled cooling-system maintenance and replace it according to the engine manufacturer's service guidance. More frequent inspection may be appropriate when operating in sandy, silty, or debris-filled water.\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. The OEM and aftermarket numbers shown are reference numbers used to help identify the intended application.\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\u003eDo not rely on horsepower alone when confirming fitment; model, stroke, configuration, and serial number must also match.\u003c\/li\u003e\n\u003cli\u003eCompare the replacement impeller with the original part before installation.\u003c\/li\u003e\n\u003cli\u003eDo not operate an outboard with inadequate cooling-water flow.\u003c\/li\u003e\n\u003cli\u003eFollow the manufacturer's service manual for disassembly, torque specifications, lubrication, and testing.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when lower-unit or sterndrive service is outside your experience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723973660987,"sku":"17IH009","price":17.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_for_Mercury-Mariner-Honda_WATER_PUMP_KIT_40-300_HP_47-43026T2_-_JLM_MARINE-8289750.jpg?v=1763038913"},{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-40-300-hp-alpha-one-gen-ii-replaces-47-43026q06-8m0100526","title":"4-Stroke Water Pump Service Kit for Honda BF75\/BF90 AT and Early Mercury Gear Cases","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:520px; }\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  details summary { cursor:pointer; font-weight:bold; padding:8px 0; }\n  details p { padding-left:15px; }\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\u003e4-stroke water pump service kit\u003c\/strong\u003e is intended for selected Honda Marine outboards and early Mercury gear-case applications. The company fitment information identifies Honda \u003cstrong\u003eBF75AT\u003c\/strong\u003e and \u003cstrong\u003eBF90AT\u003c\/strong\u003e models, plus an \u003cstrong\u003eearly Mercury gear case\u003c\/strong\u003e application.\u003c\/p\u003e\n\u003cp\u003eUse the original component, engine model, and service-manual information to verify the application before ordering. Compatibility depends on the exact model and gear-case configuration; the fitment information does not establish compatibility with every Mercury or Mariner outboard, every horsepower range, or MerCruiser Alpha One sterndrive.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for water pump service on selected 4-stroke outboard applications.\u003c\/li\u003e\n  \u003cli\u003eSuitable for the Honda BF75\/90 AT application identified by the company catalog.\u003c\/li\u003e\n  \u003cli\u003eAlso listed for an early Mercury gear-case application.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement service component; not an OEM-branded Honda or Mercury part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Reference\u003c\/h2\u003e\n\u003cp\u003eThe following manufacturer reference is listed for this product. Part-number reference alone does not replace model and configuration verification.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Reference\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eHonda Marine\u003c\/td\u003e\n\u003ctd\u003e06193-ZW1-305\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm the complete model designation and gear-case configuration before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand or application\u003c\/th\u003e\n\u003cth\u003eModel or configuration\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eFitment note\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eHonda Marine Outboard\u003c\/td\u003e\n\u003ctd\u003eBF75AT\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eCompany-listed application\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eHonda Marine Outboard\u003c\/td\u003e\n\u003ctd\u003eBF90AT\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eCompany-listed application\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eEarly Mercury gear case\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eVerify the exact gear-case configuration before purchase\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\u003e4-stroke water pump service kit\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eHonda BF75\/90 AT and early Mercury gear-case applications as listed\u003c\/dd\u003e\n  \u003cdt\u003eManufacturer Reference\u003c\/dt\u003e\n  \u003cdd\u003e06193-ZW1-305\u003c\/dd\u003e\n  \u003cdt\u003eProduct Construction\u003c\/dt\u003e\n  \u003cdd\u003eKit contents and individual component materials may vary by application; verify the supplied parts against the original service assembly before installation.\u003c\/dd\u003e\n  \u003cdt\u003eBrand Status\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cp\u003eThis listing is for a water pump service kit. The company catalog does not provide a verified itemized component list or confirm whether a housing is included for every catalog variation. Compare the supplied components with the original assembly and the applicable service manual before beginning work.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eSwitch off the engine, remove the ignition key, disconnect the battery where applicable, and allow the engine to cool.\u003c\/li\u003e\n  \u003cli\u003eConfirm the engine model, gear-case configuration, and replacement reference before disassembly.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit according to the applicable manufacturer service procedure.\u003c\/li\u003e\n  \u003cli\u003eRemove the water pump cover and existing service components, keeping track of the original arrangement.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surfaces and remove old gasket material without damaging the sealing surfaces.\u003c\/li\u003e\n  \u003cli\u003eInstall the service-kit components in the configuration specified by the service manual.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water pump and lower unit, tightening fasteners to the manufacturer’s specified torque.\u003c\/li\u003e\n  \u003cli\u003eReconnect the water tube and shift mechanism as applicable, then verify correct alignment.\u003c\/li\u003e\n  \u003cli\u003eTest the engine using an appropriate water supply and check for proper cooling-water discharge and leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eMaintenance and Troubleshooting\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I verify that this kit fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eCheck the full model designation, stroke, gear-case configuration, and the reference number 06193-ZW1-305 against your service manual or parts diagram. The listed applications are Honda BF75AT, Honda BF90AT, and an early Mercury gear case; do not assume that other horsepower ratings or later gear cases use the same kit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a worn water pump service assembly?\u003c\/summary\u003e\n  \u003cp\u003ePossible signs include weak cooling-water discharge, overheating, temperature alarms, or visible wear, cracking, deformation, or damage during inspection. Stop operation if the engine overheats and diagnose the cooling system before continued use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhen should the water pump be serviced?\u003c\/summary\u003e\n  \u003cp\u003eFollow the maintenance schedule for your specific engine and inspect the water pump whenever cooling performance changes or the lower unit is serviced. Saltwater, sand, silty water, and extended storage can increase service needs.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDo I need special tools?\u003c\/summary\u003e\n  \u003cp\u003eBasic hand tools and the tools specified by the applicable service manual are required. A torque wrench is recommended for reassembly. Use the manufacturer’s procedure for lower-unit removal, shift-shaft alignment, and fastener tightening.\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 service kit. Honda and Mercury names and part numbers are used only to identify the intended application and reference numbers.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Fitment Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, model year where applicable, gear-case configuration, and reference number before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not install the kit if the supplied components differ from the original assembly or the service-manual illustration.\u003c\/li\u003e\n  \u003cli\u003eNever operate an outboard without an adequate water supply.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when lower-unit removal or water-pump service is outside your experience.\u003c\/li\u003e\n  \u003cli\u003eThis product is an aftermarket replacement and is not manufactured or branded by Honda Marine or Mercury Marine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723973693755,"sku":"20KM003-H","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_with_Housing_for_Mercury_40-300_HP_47-43026Q06_-_JLM_MARINE-8289928.jpg?v=1763038915"},{"product_id":"water-pump-impeller-kit-fits-mercury-mariner-honda-40-300-hp-replaces-47-43026q06","title":"Water Pump Repair Kit Without Housing for Mercury\/Mariner 40–300 HP – Replaces 47-43026Q06","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eWater Pump Repair Kit Without Housing\u003c\/strong\u003e is an aftermarket service kit for selected Mercury and Mariner outboard water-pump applications. It is supplied without the water-pump housing and is intended to replace worn internal water-pump service components when the existing housing remains serviceable.\u003c\/p\u003e\n  \u003cp\u003eThe listed applications cover selected Mercury\/Mariner 2-stroke models from 60 to 225 HP and selected 4-stroke models from 40 to 300 HP, including Bigfoot, Optimax, and Verado configurations. Model, engine type, and serial-number conditions must be checked before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater-pump repair kit supplied without the pump housing.\u003c\/li\u003e\n    \u003cli\u003eFor selected Mercury and Mariner outboard applications.\u003c\/li\u003e\n    \u003cli\u003eSuitable for listed 2-stroke and 4-stroke service applications.\u003c\/li\u003e\n    \u003cli\u003eAftermarket replacement; not manufactured by Mercury Marine.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThe following manufacturer and aftermarket numbers are listed as reference numbers for this repair-kit application. They are not the internal product identifier.\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\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eReference Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-8M0100526\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-8M0100527\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026Q06\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026Q5\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026T6\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026T7\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026T8\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026T10\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e47-43026T11\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eChrysler Force\u003c\/td\u003e\n\u003ctd\u003e47-43024A7, 47-43024A4, 47-43024A5, 47-43024A6, 47-43024T9\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eGLM Marine\u003c\/td\u003e\n\u003ctd\u003e12043\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra Marine\u003c\/td\u003e\n\u003ctd\u003e18-3214, 18-3265\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMallory Marine\u003c\/td\u003e\n\u003ctd\u003e9-48313\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003e19021-ZW1-003, 06192-ZW1-305\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eCompatibility is application-specific. Keep the engine family, horsepower, stroke, model configuration, and serial-number range together when confirming fitment. The following applications are listed by the product source.\u003c\/p\u003e\n\n  \u003ch3\u003eMercury\/Mariner 2-Stroke Applications\u003c\/h3\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury Mariner 2-Stroke Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel or Configuration\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eApplication Notes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eBigfoot, 3-cylinder\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eBigfoot application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eJet\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eJet application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3-cylinder\u003c\/td\u003e\n\u003ctd\u003e70–90\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eIncludes listed 70, 75, 80, and 90 HP applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e3-cylinder Optimax\u003c\/td\u003e\n\u003ctd\u003e75, 115\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eOptimax applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eJet\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eJet application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e4-cylinder\u003c\/td\u003e\n\u003ctd\u003e100–125\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eListed 4-cylinder applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eV-200 EFI\/DFI, 3.0 L\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eEFI\/DFI configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eV-225 Carbureted or EFI, 3.0 L\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eCarbureted and EFI configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eMercury\/Mariner 4-Stroke Applications\u003c\/h3\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury Mariner 4-Stroke Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel or Configuration\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eApplication Notes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eCarbureted Bigfoot, 4-cylinder\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eBigfoot configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eBodensee Bigfoot, 4-cylinder\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eBigfoot configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eBigfoot, carbureted or EFI, 996 cc\u003c\/td\u003e\n\u003ctd\u003e50–60\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eListed 50 and 60 HP configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard, 1596 cc or 1731 cc\u003c\/td\u003e\n\u003ctd\u003e75–90\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eListed 75 and 90 HP applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003eOutboard, 1741 cc or 1731 cc\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eListed 115 HP applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e4-cylinder Verado\u003c\/td\u003e\n\u003ctd\u003e135–200\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eListed 135, 150, 175, and 200 HP configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e6-cylinder Verado\u003c\/td\u003e\n\u003ctd\u003e200–300\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eListed 200, 225, 250, 275, and 300 HP configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eHorsepower ranges alone do not confirm compatibility. Compare the complete engine model and serial information with your existing water-pump components before installation.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\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\u003eHousing\u003c\/dt\u003e\n    \u003cdd\u003eNot included\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected Mercury\/Mariner 2-stroke and 4-stroke outboards\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eReplacement service installation using the existing pump housing when suitable\u003c\/dd\u003e\n    \u003cdt\u003eProduct Status\u003c\/dt\u003e\n    \u003cdd\u003eAftermarket replacement\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Water pump repair kit for the listed applications\u003c\/li\u003e\n    \u003cli\u003eWater-pump housing not included\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eComponent contents and quantities should be compared with the service requirements of your exact engine application before installation. This listing does not include a complete water-pump housing assembly.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery and make sure the engine is stopped and cool.\u003c\/li\u003e\n    \u003cli\u003eSupport the engine and remove the lower unit according to the applicable manufacturer service procedure.\u003c\/li\u003e\n    \u003cli\u003eRemove the water-pump cover and inspect the existing housing, wear surfaces, drive key, and water passages.\u003c\/li\u003e\n    \u003cli\u003eRemove the worn service components and clean all mating surfaces thoroughly.\u003c\/li\u003e\n    \u003cli\u003eInstall the supplied repair-kit components in the correct order for your engine model.\u003c\/li\u003e\n    \u003cli\u003eConfirm that the impeller is seated correctly and that the blades follow the normal direction of rotation.\u003c\/li\u003e\n    \u003cli\u003eReinstall the existing pump housing only if it is suitable for reuse and free from excessive wear or damage.\u003c\/li\u003e\n    \u003cli\u003eReinstall the lower unit, ensuring correct alignment of the driveshaft, shift shaft, and water tube.\u003c\/li\u003e\n    \u003cli\u003eFollow the manufacturer’s torque specifications and refill the gearcase lubricant as required.\u003c\/li\u003e\n    \u003cli\u003eRun the engine with an appropriate water supply and verify a strong tell-tale stream before returning the boat to service.\u003c\/li\u003e\n  \u003c\/ol\u003e\n  \u003cp\u003eUse the service manual for the exact engine model. If the existing housing is damaged or excessively worn, a separate housing or complete water-pump assembly may be required.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this repair kit include the water-pump housing?\u003c\/summary\u003e\n    \u003cp\u003eNo. This product is supplied without the water-pump housing. The existing housing must be inspected and suitable for reuse, or replaced separately if damaged or worn.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this kit for both 2-stroke and 4-stroke engines?\u003c\/summary\u003e\n    \u003cp\u003eYes, the listed product applications include selected Mercury\/Mariner 2-stroke engines from 60 to 225 HP and selected 4-stroke engines from 40 to 300 HP. The exact model and configuration must match the application list.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this kit fit every Mercury or Mariner engine within the horsepower range?\u003c\/summary\u003e\n    \u003cp\u003eNo. Horsepower is only one fitment condition. Engine family, stroke, configuration, model details, and serial-number information can change the required water-pump parts. Confirm all available identification details before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM Mercury Marine part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement repair kit. The manufacturer and aftermarket numbers shown above are reference numbers used to help identify the intended application.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common signs that a water-pump service is needed?\u003c\/summary\u003e\n    \u003cp\u003ePossible signs include a weak or missing tell-tale stream, overheating warnings, reduced cooling performance, or visibly damaged, brittle, or worn pump components. Stop operating an overheating engine and diagnose the cooling system before further use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should a water-pump impeller be serviced?\u003c\/summary\u003e\n    \u003cp\u003eService intervals depend on the engine manufacturer’s recommendations, operating hours, storage conditions, and exposure to saltwater, sand, or silt. Inspect and replace service components according to the applicable engine service schedule.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the complete engine model, stroke, configuration, and serial information before purchase.\u003c\/li\u003e\n    \u003cli\u003eCompare the replacement parts with the original components before installation.\u003c\/li\u003e\n    \u003cli\u003eThe water-pump housing is not included.\u003c\/li\u003e\n    \u003cli\u003eDo not operate an engine that is overheating or lacks a proper cooling-water stream.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when lower-unit removal or cooling-system diagnosis is required.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical aftermarket components for routine service and repair applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Fitment\u003c\/strong\u003e — Product information is organized around engine family, horsepower, stroke, and configuration.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — Always verify the exact engine application and installation requirements before ordering.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723973726523,"sku":"18KM002-1","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury-Mariner-Honda_40-300_HP_47-43026Q06_-_JLM_MARINE-8289834.jpg?v=1763038916"}],"url":"https:\/\/seasierra.com\/collections\/mercury-2-stroke-outboard-engine-parts-40-300hp.oembed","provider":"SeaSierra","version":"1.0","type":"link"}