{"title":"Mercury 2-Stroke Outboard Engine Parts 30-300HP","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page supports Mercury 2‑Stroke outboard engines from 30–300 HP. Use it to find compatible parts, routine maintenance guidance, and quick troubleshooting tips. You can also browse our main Mercury collection at any time. Scroll to the bottom of this page to start browsing parts for your engine, and remember: on the collection page you can 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:#0ea5e9; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 30–300HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the serial number plate on the starboard clamp bracket or swivel bracket; it’s the primary identifier for Mercury 2‑Stroke engines.\u003c\/li\u003e\n    \u003cli\u003eModel\/serial tags may include suffixes for shaft length (L = 20\", XL = 25\") and control type (tiller vs. remote). Record these when ordering parts.\u003c\/li\u003e\n    \u003cli\u003eDistinguish platforms: small twin\/inline‑3 (30–60 HP), inline‑3\/4 mid‑range (75–125 HP), and V6 (135–300 HP). DFI engines are typically labeled Optimax\/Pro XS on the cowl.\u003c\/li\u003e\n    \u003cli\u003eNote ignition and fuel system: carbureted\/EFI vs. DFI (Optimax\/Pro XS). Many wear items fit across families, but confirm by serial number before purchasing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eSmall‑Bore 2‑Stroke (30–60 HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px; width:180px;\"\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      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eTwin‑cylinder or inline‑3, carbureted 2‑Stroke outboards.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGeneral 30–60 HP 2‑Stroke family (manual\/electric start; tiller or remote).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLightweight, simple systems, easy trailering and 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;\"\u003eMany cooling and ignition parts overlap across HP variants—verify by serial for exact seals, gear ratio props, and electrical components.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eMid‑Range 2‑Stroke (75–125 HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin-top:12px;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px; width:180px;\"\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      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInline‑3 (75\/90\/115) and select inline‑4 (e.g., 125) 2‑Stroke, carb or EFI depending on year.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e75\/90\/115 inline‑3; 125 inline‑4 (year‑dependent fuel systems).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eStrong mid‑range torque; straightforward maintenance; widely supported service parts.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGear ratios and gearcase styles vary; confirm prop, seals, and water pump kit by serial and shaft length.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 2‑Stroke (135–300 HP, incl. Optimax\/Pro XS DFI)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin-top:12px;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px; width:180px;\"\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      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eV6 2‑Stroke range in carb\/EFI and DFI (Optimax\/Pro XS) variants.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e135\/150\/175\/200 (carb\/EFI) and 200\/225\/250\/300 Optimax\/Pro XS DFI.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eHigh output with strong hole‑shot; DFI engines offer improved fuel economy 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;\"\u003eDFI fuel\/air rails, injectors, and compressors are model‑specific; cooling and ignition parts differ by year—always confirm with serial number.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for typical recreational use. Always follow the official Mercury service manual for your exact model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #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;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck for water intrusion and metal on magnet; replace drain plug gaskets as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect every 50 hrs; replace ~100 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eFouling is more common on 2‑Stroke engines; gap per manual.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eFuel filter \/ water‑separating filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eReplace more often with poor fuel quality or storage use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 2 seasons or 200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCritical for cooling; sooner if weak tell‑tale or sand\/silt operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003eAnodes (sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect 50 hrs; replace when 50–60% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse correct alloy for fresh, brackish, or salt water.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003e2‑Stroke oil injection system\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnnual inspection\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck tank screen, lines, and bleed procedure; premix models follow fuel‑oil ratio.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/hoses\"\u003eHoses\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eThermostat\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect annually; replace 2–3 seasons\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eStuck thermostats contribute to cold‑seize or overheat.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePropeller \u0026amp; hub inspection\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEach 50 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck for dings, line on shaft, and correct pitch; grease splines.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit \u0026amp; Seals: \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\u003ePropellers \u0026amp; Hardware: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #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;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect intake screens for debris, verify impeller condition, and test thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck prop for damage or over‑pitch, replace fuel filter, inspect spark plugs, and verify compression.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePropeller, fuel filter, spark plugs, reed valves (where applicable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePrime bulb firmness, fuel line air leaks, choke\/enrichment, and carburetor cleanliness (or DFI fuel\/air integrity).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eFuel line\/hoses, inline filter, spark plugs, carb gaskets\/kits or DFI service parts\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfirm oil ratio (premix) or oil pump calibration; prolonged idling can increase smoke.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eOil lines\/hoses, check valves, spark plugs\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;\"\u003eVerify oil level and condition; inspect prop shaft for line‑cut seals; pressure test gearcase.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, bearings, drain plug gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"margin-top:24px;\"\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, plugs) can cross families, but many cooling, ignition, and gearcase parts vary by year, serial range, and whether the engine is carb\/EFI or DFI (Optimax\/Pro XS). Use your serial number to confirm exact fit.\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 baseline, every 2 seasons or ~200 hours. Replace sooner if you operate in sand\/silt, see a weak tell‑tale, or after any overheat event.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the lower unit gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eAt least annually or every 100 hours. Inspect for water (milky oil) and metal on the drain plug magnet; address seal issues immediately if contamination is found.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the engine’s serial number, horsepower, shaft length (L\/XL), and whether it’s carb\/EFI or DFI (Optimax\/Pro XS). Photos of the nameplate and the part to be replaced are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"margin-top:24px; padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eReady to find parts for your Mercury 2‑Stroke? Browse the main Mercury collection and refine by horsepower, year, and model using Filter \u0026amp; Sort.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block; margin:8px 0; padding:10px 14px; background:#0ea5e9; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"font-size:0.95em; color:#374151;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"water-pump-impeller-fits-mercury-honda-30-300-hp-replaces-47-43026q02-19210-zw1-303","title":"Aftermarket Water Pump Impeller with Key – Mercury Verado 200–275 HP 4-Stroke, Replaces 8M0100526 and 47-43026Q02","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ewater pump impeller with key\u003c\/strong\u003e is designed for selected Mercury Verado 4-stroke outboard applications. It is a high-volume, long-vane impeller intended to help maintain proper water circulation through the cooling system and replace a worn or damaged impeller.\u003c\/p\u003e\n\u003cp\u003eThe primary Mercury reference is \u003cstrong\u003e8M0100526\u003c\/strong\u003e. Related manufacturer and aftermarket references reported for this impeller include \u003cstrong\u003e47-43026Q02\u003c\/strong\u003e, \u003cstrong\u003e47-43026T2\u003c\/strong\u003e, \u003cstrong\u003e47-8M002570\u003c\/strong\u003e, \u003cstrong\u003e430261\u003c\/strong\u003e, \u003cstrong\u003e430262\u003c\/strong\u003e, \u003cstrong\u003e430264\u003c\/strong\u003e, \u003cstrong\u003e43026B2\u003c\/strong\u003e, \u003cstrong\u003e19210-ZW1-303\u003c\/strong\u003e, \u003cstrong\u003e19210-ZW1-003\u003c\/strong\u003e, \u003cstrong\u003e0775467\u003c\/strong\u003e, \u003cstrong\u003e18-3056\u003c\/strong\u003e, \u003cstrong\u003eGLM 89630\u003c\/strong\u003e, and \u003cstrong\u003eCEF 500301\u003c\/strong\u003e. Reference numbers are provided for identification; confirm the exact model, serial-number range, dimensions, and original part number before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAftermarket replacement water pump impeller.\u003c\/li\u003e\n\u003cli\u003eHigh-volume, long-vane design for applicable Mercury water pumps.\u003c\/li\u003e\n\u003cli\u003eReplacement drive key included as listed for this product.\u003c\/li\u003e\n\u003cli\u003eHelps restore cooling-water flow and reduce the risk of overheating caused by an aged or damaged impeller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- Table styles --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap; word-break:normal; letter-spacing:normal;\n    font-weight:600; background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following references are supplied as identification and cross-reference information. A shared number does not by itself confirm fitment for every engine listed by a manufacturer or aftermarket brand.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand or Source\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0100526\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-43026T2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e47-8M002570\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e430261\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e430262\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e430264\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e43026B2\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\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003e19210-ZW1-003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e0775467\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3056\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e89630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCEF\u003c\/td\u003e\n\u003ctd\u003e500301\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\u003eCatalog records specifically identify reference \u003cstrong\u003e47-43026Q02\u003c\/strong\u003e as an impeller for selected Mercury Verado 4-stroke outboards. The confirmed catalog applications below retain their model, horsepower, stroke, and serial-number conditions together.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003cth\u003eSerial or Application Condition\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e200 Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e1B517434 through 2B144122; selected gear-housing and driveshaft diagrams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e200 Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e0P520553 through 2B144122; selected gear-housing and driveshaft diagrams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e200 Pro Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e2B144123 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225 Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e1B517434 through 2B144122, or 0P520553 through 2B144122, depending on gear-housing configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225 Pro Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e2B144123 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e250 Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e1B517434 through 2B144122, or 0P520553 through 2B144122, depending on gear-housing configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e250 Pro Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e2B144123 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e275 Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e275\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e1B517434 through 2B144122, or 0P520553 through 2B144122, depending on gear-housing configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e275 Pro Verado, 6-cylinder\u003c\/td\u003e\n\u003ctd\u003e275\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e47-43026Q02\u003c\/td\u003e\n\u003ctd\u003e2B144123 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eOther Mercury, Honda, Johnson\/Evinrude, and sterndrive applications may use related references, but the available records do not establish one universal 30–300 HP fitment range. Always compare the original impeller, engine model, serial number, water-pump configuration, and dimensions before installation.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAftermarket water pump impeller with drive key\u003c\/dd\u003e\n\u003cdt\u003eImpeller Style\u003c\/dt\u003e\n\u003cdd\u003eHigh-volume, long-vane design\u003c\/dd\u003e\n\u003cdt\u003eOutside Diameter\u003c\/dt\u003e\n\u003cdd\u003e3.50 in. approximately\u003c\/dd\u003e\n\u003cdt\u003eInside Diameter\u003c\/dt\u003e\n\u003cdd\u003e0.875 in. approximately\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement component; application-specific fitment verification required\u003c\/dd\u003e\n\u003cdt\u003eReference Impeller\u003c\/dt\u003e\n\u003cdd\u003e47-43026Q02\u003c\/dd\u003e\n\u003cdt\u003ePrimary Reference\u003c\/dt\u003e\n\u003cdd\u003e8M0100526\u003c\/dd\u003e\n\u003cdt\u003eOther Technical Attribute\u003c\/dt\u003e\n\u003cdd\u003eReplacement key included as listed\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x aftermarket water pump impeller\u003c\/li\u003e\n\u003cli\u003e1 x drive key\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWater-pump housing, wear plate, gaskets, seals, washers, and other service components are not included unless specifically stated above.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the battery and follow the engine manufacturer's safety procedures.\u003c\/li\u003e\n\u003cli\u003eRemove the lower unit according to the service procedure for your exact engine and serial-number range.\u003c\/li\u003e\n\u003cli\u003eRemove the water-pump housing and inspect the housing, wear plate, keyway, seals, and related gaskets.\u003c\/li\u003e\n\u003cli\u003eRemove the old impeller and clean debris from the pump cavity.\u003c\/li\u003e\n\u003cli\u003eInstall the supplied key and slide the impeller onto the driveshaft.\u003c\/li\u003e\n\u003cli\u003ePre-load the vanes in the correct direction of driveshaft rotation while installing the pump housing. Do not force the housing over the vanes.\u003c\/li\u003e\n\u003cli\u003eUse an appropriate water-based lubricant or the lubricant specified by the engine manufacturer. Do not run a new impeller dry.\u003c\/li\u003e\n\u003cli\u003eReassemble the water pump and lower unit using the manufacturer's specified torque values and replacement seals or gaskets where required.\u003c\/li\u003e\n\u003cli\u003eReconnect the battery and test the engine with an adequate water supply. Confirm a strong telltale 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 the impeller needs replacing?\u003c\/summary\u003e\u003cp\u003eCommon signs include a weak or absent telltale stream, overheating warnings, reduced cooling-water flow, or cracked, brittle, deformed, or missing vanes during inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit my exact engine?\u003c\/summary\u003e\u003cp\u003eMatch the original part number, engine model, horsepower, stroke, serial-number range, water-pump configuration, and impeller dimensions. The compatibility table lists selected Mercury Verado applications rather than every possible application for the cross-reference numbers.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs the drive key included?\u003c\/summary\u003e\u003cp\u003eYes. This product is listed with one replacement drive key. Confirm that the supplied key matches the driveshaft keyway before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShould I replace the wear plate, gaskets, or seals at the same time?\u003c\/summary\u003e\u003cp\u003eInspect all related water-pump components whenever the impeller is replaced. Replace worn, scored, damaged, or hardened components as required by the engine manufacturer's service procedure. These additional components are not included unless listed in the package contents.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should an impeller be replaced?\u003c\/summary\u003e\u003cp\u003eReplacement timing depends on the engine manufacturer's schedule, operating hours, storage conditions, and exposure to saltwater or sediment. Inspect the impeller at the recommended service interval and replace it when wear or damage is found.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I run the engine dry after installation?\u003c\/summary\u003e\u003cp\u003eNo. Never operate the engine without an adequate water supply. Dry running can damage the new impeller within seconds.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement. Manufacturer and aftermarket reference numbers are shown only to help identify potentially compatible applications.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the original part number, dimensions, engine model, stroke, and complete serial-number range before ordering.\u003c\/li\u003e\n\u003cli\u003eDo not rely on horsepower alone to determine fitment.\u003c\/li\u003e\n\u003cli\u003eInspect the pump housing, wear plate, keyway, seals, and gaskets during installation.\u003c\/li\u003e\n\u003cli\u003eUse the engine manufacturer's service manual for removal, torque, rotation, and testing procedures.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when the correct application or service procedure is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical aftermarket components for common service and repair needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication-Focused Information\u003c\/strong\u003e — Reference numbers and engine conditions are provided to support careful part verification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValue-Oriented Service\u003c\/strong\u003e — Replacement solutions for routine marine maintenance and repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723966026043,"sku":"22KM023","price":47.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_30-300_HP_47-43026Q02_-_JLM_MARINE-8290023.jpg?v=1763038617"}],"url":"https:\/\/seasierra.com\/collections\/mercury-2-stroke-outboard-engine-parts-30-300hp.oembed","provider":"SeaSierra","version":"1.0","type":"link"}