{"title":"Mercury 2-Stroke 70-90HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width: 1100px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eThis page is for Mercury 2-Stroke 70–90HP outboard engines. Use it to find compatible parts and practical service information, including maintenance tips, commonly replaced items, and troubleshooting guidance. You can also browse our main Mercury collection at any time. Scroll to the bottom of this page to start browsing parts for this engine, and on the collection page use the Filter \u0026amp; Sort controls to narrow parts by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#003049; color:#fff; text-decoration:none; border-radius:4px;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width: 1100px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 70–90HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the serial number tag on the swivel\/transom bracket (port or starboard). On many models it’s near the steering tube or between the thumb screws.\u003c\/li\u003e\n    \u003cli\u003eUse the serial number to confirm the exact year range and parts break. Suffixes or labels may indicate shaft length (L\/XL), starting method, or control type.\u003c\/li\u003e\n    \u003cli\u003eCarbureted vs. DFI Optimax: Carb models use multiple carburetors; DFI Optimax engines have air-assisted direct injection and typically display Optimax decals.\u003c\/li\u003e\n    \u003cli\u003e2‑Stroke oiling: Some models use an oil-injection tank (engine or remote). If injection has been deleted, follow the correct premix ratio as specified by the service manual.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"max-width: 1100px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eInline‑3 Carbureted 2‑Stroke (70–90HP)\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 #ccc; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInline‑3, loop‑charged 2‑stroke with multi‑carb induction.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e70\/75\/80\/90HP 2‑stroke carb variants across multiple serial ranges.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eLight weight, simple maintenance, strong mid‑range torque.\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 parts by serial number. Expect routine carb synchronization\/cleaning, water pump service, and ignition component checks. Some models use oil injection; confirm system type before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eDFI Optimax 2‑Stroke (90HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin-top:12px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAir‑assisted direct‑injected 2‑stroke with dedicated fuel\/air components.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e90HP Optimax\/DFI variants in several serial ranges.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eImproved fuel economy and emissions versus carb models; strong overall performance.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse DFI‑rated 2‑stroke oil. Some service parts are Optimax‑specific (filters, injectors, air components). Always match parts to the engine’s serial number and platform.\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: 1100px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for typical recreational use. Always follow your official service manual and adjust based on hours, environment, and storage 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 #ccc; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect for water (milky oil) or metal; replace drain\/fill gaskets.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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; border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck heat range and gap for your serial range; replace if fouled.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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; border-bottom:1px solid #eee;\"\u003eFuel filter \/ water-separating filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e100 hrs or annually (inspect each outing)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace sooner if contaminated fuel or storage use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 2 seasons or 200 hrs (yearly in sandy\/silty water)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eRestore cooling performance; renew wear plate, cup, and seals as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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 #eee;\"\u003eAnodes (internal \u0026amp; external)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect monthly; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eUse alloy suited to your water (fresh\/brackish\/salt).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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 #eee;\"\u003eThermostat\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 2 years or 200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace if overheat\/low-temp faults occur or if stuck\/corroded.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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; border-bottom:1px solid #eee;\"\u003e2‑Stroke oil system (injection or premix)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck each outing\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eVerify reservoir level, lines, and filters; use correct 2‑stroke or DFI oil.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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; border-bottom:1px solid #eee;\"\u003eCarburetor cleaning\/rebuild (carb models)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAs needed; inspect each season\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAddress hard starting, surging, and poor idle\/transition.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/carburetor\"\u003eCarburetor\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit (if water intrusion found)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAs needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eReseal after fishing line damage or leak test failure.\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    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width: 1100px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\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\u003eGearcase 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; Hubs — \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection — \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical — \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width: 1100px; margin: 0 auto; padding: 16px;\"\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 #ccc; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWeak tell‑tale stream \/ overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect intake screens, water pump impeller, thermostat; confirm hose routing.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screen, gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePrime fuel system, check for stale fuel, clean\/sync carbs (carb models), verify spark.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel filter, carb kits, spark plugs, fuel hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCompression test, timing advance function, prop condition\/pitch, fuel restriction.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePropeller, fuel filter, ignition components, carb kits\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfirm oil ratio and oil type, check enrichment\/choke operation, look for stuck floats.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eOil‑injection parts, enrichment solenoid, carb kits\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;\"\u003eCheck oil level\/condition, prop shaft seal for fishing line, perform pressure\/vacuum test.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, prop hardware, drain\/fill 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=\"max-width: 1100px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between carbureted and DFI Optimax 90HP models?\u003c\/summary\u003e\n    \u003cp\u003eSome hardware and gearcase components may overlap, but many fuel, oiling, and electrical parts are platform‑specific. Always verify by serial number and platform type before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eTypically every 2 seasons or about 200 hours, and yearly if you run in sandy or silty water or notice weak cooling flow or overheat alarms.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eChange every 100 hours or at least once per season. Inspect for water contamination or metal debris; reseal the gearcase if leaks are 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\u003ePlease provide the engine’s serial number from the bracket tag, horsepower, platform (carb vs. Optimax DFI), and shaft length if known. Photos of the nameplate and the part needing replacement are helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width: 1100px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eReady to find parts? Browse the main Mercury collection and narrow by horsepower, year, and model to match your 2‑stroke 70–90HP outboard.\u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#003049; color:#fff; text-decoration:none; border-radius:4px;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n  \u003cp style=\"font-size: 0.95em; color:#333;\"\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-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":"carburetor-assembly-fits-mercury-mariner-2-stroke-70-90hp-replaces-3301-9012a14","title":"Carburetor Assembly for Mercury\/Mariner 2-Stroke Outboards – Replaces OEM 3301-9012A14","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eCarburetor Assembly for Mercury\/Mariner 2-Stroke Outboards\u003c\/strong\u003e is an aftermarket replacement carburetor associated with Mercury OEM part number \u003cstrong\u003e3301-9012A14\u003c\/strong\u003e. It is intended to replace a matching original carburetor and help restore proper fuel metering and engine operation when the existing unit is worn, damaged, or contaminated.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, compare the OEM number, carburetor configuration, mounting pattern, linkages, fuel connections, and photographs with the part removed from your engine. Compatibility depends on the exact engine model, year, serial range, and carburetor configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement carburetor assembly for selected Mercury and Mariner 2-stroke outboards.\u003c\/li\u003e\n  \u003cli\u003eDesigned as a direct replacement when all mounting and connection details match.\u003c\/li\u003e\n  \u003cli\u003eSingle carburetor assembly; this listing is not a multi-carburetor kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Reference\u003c\/h2\u003e\n\u003cp\u003eThe following manufacturer part number is the documented reference for this product. A part-number match should be confirmed against the complete engine application before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Reference\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e3301-9012A14\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis replacement is intended for selected Mercury and Mariner 2-stroke outboard applications using the referenced carburetor. Exact horsepower, model-year, serial-number, and cylinder-specific coverage was not established by the available catalog records, so verify the complete application before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eEngine Type\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eReference Part No.\u003c\/th\u003e\n        \u003cth\u003eFitment Requirement\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\u003eSelected outboard applications\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e3301-9012A14\u003c\/td\u003e\n        \u003ctd\u003eConfirm model, year, serial range, mounting pattern, linkages, and fuel connections.\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\u003eCarburetor assembly\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Mercury and Mariner 2-stroke outboard engines\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement installation when the original part and application details match\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n  \u003cdd\u003eGasoline\/oil-fuel system for compatible 2-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eReference Manufacturer Part Number\u003c\/dt\u003e\n  \u003cdd\u003e3301-9012A14\u003c\/dd\u003e\n  \u003cdt\u003eIncluded Gasket\u003c\/dt\u003e\n  \u003cdd\u003eNot confirmed; inspect the package and plan to use the correct new mounting gasket if required\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n  \u003cdd\u003eVerify fuel ports, throttle and choke linkages, mounting dimensions, and adjustment requirements before installation\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Carburetor assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGaskets, hoses, linkage hardware, and other accessories are not confirmed as included unless specifically shown or stated in the package contents.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the replacement part number and compare the new carburetor with the original unit before disassembly.\u003c\/li\u003e\n  \u003cli\u003eEnsure the engine is cool, disconnect the battery's negative terminal where applicable, and follow the engine manufacturer's safety procedures.\u003c\/li\u003e\n  \u003cli\u003eTurn off the fuel supply and place an approved container beneath the carburetor to collect fuel. Work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n  \u003cli\u003ePhotograph or mark the routing of the fuel lines, throttle linkage, and choke linkage, then disconnect them carefully.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting hardware and old carburetor. Clean the intake mounting surface without allowing debris to enter the engine.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement using the correct gasket or sealing components for the engine. Tighten mounting hardware evenly to the manufacturer's specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect all fuel lines and control linkages in their original positions. Confirm that the throttle and choke operate freely through their full range.\u003c\/li\u003e\n  \u003cli\u003eRestore the fuel supply and inspect for leaks before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eStart and warm the engine in accordance with the manufacturer's procedure. Check idle quality, throttle response, and fuel leakage, and perform any required adjustment using the correct service specifications.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm this carburetor fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eCompare your original carburetor and engine identification information with the reference number \u003cstrong\u003e3301-9012A14\u003c\/strong\u003e. Also verify the model, year, serial range, mounting pattern, fuel connections, throttle linkage, choke linkage, and photographs. A general horsepower or brand match alone is not sufficient to confirm fitment.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a faulty carburetor?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms can include hard starting, rough or unstable idling, stalling at low speed, hesitation or bogging during acceleration, reduced power, fuel overflow, or visible fuel leakage. These symptoms can also result from fuel-system contamination, ignition problems, incorrect adjustment, or other engine faults.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs a new gasket included with this part?\u003c\/summary\u003e\n  \u003cp\u003eA gasket is not confirmed as included with the carburetor assembly. Check the package contents and obtain the correct replacement gasket separately if needed for your engine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan this carburetor be used on a 4-stroke engine?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is intended for compatible Mercury\/Mariner 2-stroke outboard applications. Do not install it on a 4-stroke engine unless the engine manufacturer specifically identifies the part as correct for that application.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is for an aftermarket replacement assembly associated with Mercury OEM part number 3301-9012A14. It is not represented as a genuine Mercury OEM component.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes the listing include installation or adjustment service?\u003c\/summary\u003e\n  \u003cp\u003eNo. Installation, synchronization, and adjustment are not included. Follow the applicable service manual and use the manufacturer's specifications for your exact engine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if the replacement does not match?\u003c\/summary\u003e\n  \u003cp\u003eDo not force the installation or modify the mounting, linkages, or fuel connections. Stop and compare the original part number and engine identification information before proceeding.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the reference part number, engine model, year, serial range, dimensions, connections, and images before ordering.\u003c\/li\u003e\n  \u003cli\u003eFuel is flammable. Work in a well-ventilated area away from flames, sparks, and other ignition sources, and dispose of drained fuel properly.\u003c\/li\u003e\n  \u003cli\u003eUse the correct gasket and follow the engine manufacturer's torque, adjustment, and testing procedures.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not a genuine OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when you are not familiar with marine fuel systems or carburetor adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine replacement parts selected for practical repair and maintenance applications.\u003c\/li\u003e\n  \u003cli\u003eApplication-Focused Support — Compare the original part and complete engine identification details before installation.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Replacement components are offered as practical alternatives to help maintain compatible marine engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723982246203,"sku":"21CA003","price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/JLM21CA003-4.jpg?v=1763039306"},{"product_id":"water-pump-impeller-kit-fits-honda-mercury-johnson-evinrude-70-235-hp-replaces-47-43026q02-19210-zw1-003-399289","title":"Water Pump Impeller with Key – Fits Select Honda 70–90 HP and Mercury\/Mariner 2-Stroke 60–225 HP","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { 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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003ewater pump impeller with key\u003c\/strong\u003e is an aftermarket replacement for selected Honda Marine and Mercury\/Mariner outboard water pump applications. The product is supplied as one impeller with a key and is designed to restore water-pump circulation when the original impeller is worn, cracked, hardened, or damaged.\u003c\/p\u003e\n  \u003cp\u003eCompany fitment information identifies applications including select Honda outboards rated at 70–90 HP, Mercury\/Mariner 2-stroke outboards rated at 60–225 HP, and selected Mercury\/Mariner 4-stroke applications ranging from 30 to 300 HP. Exact model, stroke type, gearcase configuration, and serial-number conditions vary by application, so compare your original impeller and engine parts information before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Water pump impeller with key\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct replacement in the matching factory water pump housing\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Flexible marine-grade impeller rubber; compound details are not specified by the product record\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIncluded key:\u003c\/strong\u003e One matching key is included with the impeller\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand status:\u003c\/strong\u003e Aftermarket replacement, not an original equipment component\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eReference Part Numbers\u003c\/h2\u003e\n  \u003cp\u003eThe following manufacturer and aftermarket references are associated with this impeller application. They are provided for identification and cross-reference purposes only; confirm the complete engine application before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Reference Part Numbers\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eReference number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eHonda\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\u003e47-43026T2; 47-430262Q02\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3056; 18-3056-10\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-45037\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e399289; 391538\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 Compatibility\u003c\/h2\u003e\n  \u003cp\u003eUse the following information as an application guide, not as a substitute for checking the engine model and serial number.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine Compatibility Guide\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eRated horsepower\u003c\/th\u003e\n\u003cth\u003eApplication information\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eHonda Marine\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e70–90 HP\u003c\/td\u003e\n\u003ctd\u003eSelect Honda outboard applications listed by the company\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e60–225 HP\u003c\/td\u003e\n\u003ctd\u003eSelected 2-stroke applications; exact model and serial conditions must be confirmed\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\/Mariner\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e30–300 HP\u003c\/td\u003e\n\u003ctd\u003eSelected applications including 30, 40, 45, 50, 60, 80, 100, 115, 135, 150, 175, 200, 225, 250, 275, and 300 HP families\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003eJohnson\/Evinrude reference numbers are listed above for identification, but a specific Johnson or Evinrude engine fitment is not stated in the available company record. Do not rely on the reference number alone to confirm compatibility.\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 impeller with key\u003c\/dd\u003e\n    \u003cdt\u003eQuantity\u003c\/dt\u003e\n\u003cdd\u003eOne impeller with one key\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eOutboard water pump cooling systems\u003c\/dd\u003e\n    \u003cdt\u003eConstruction\u003c\/dt\u003e\n\u003cdd\u003eFlexible marine impeller rubber\u003c\/dd\u003e\n    \u003cdt\u003eInstallation position\u003c\/dt\u003e\n\u003cdd\u003eMatching water pump housing on the outboard gearcase\u003c\/dd\u003e\n    \u003cdt\u003ePart 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 impeller\u003c\/li\u003e\n    \u003cli\u003e1 x Matching impeller key\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eWater pump cover gaskets, wear plates, seals, bolts, and other pump-service components are not included unless separately stated for your order.\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 follow the outboard manufacturer's safety procedures before servicing the lower unit.\u003c\/li\u003e\n    \u003cli\u003eRemove the lower unit and access the water pump assembly according to the service manual for your exact engine.\u003c\/li\u003e\n    \u003cli\u003eRemove the pump cover, old impeller, and old key. Note the original impeller orientation before removal.\u003c\/li\u003e\n    \u003cli\u003eClean the pump housing, keyway, and mating surfaces. Inspect the housing, wear plate, seals, and gaskets for wear or damage.\u003c\/li\u003e\n    \u003cli\u003eInstall the supplied key and slide the new impeller into position. Use only a lubricant approved for the impeller material and the engine manufacturer's service procedure.\u003c\/li\u003e\n    \u003cli\u003eReinstall the pump cover and any required gaskets or seals. Do not reuse damaged sealing components.\u003c\/li\u003e\n    \u003cli\u003eReinstall the lower unit, reconnect the battery, and test the cooling-water tell-tale flow before normal operation.\u003c\/li\u003e\n  \u003c\/ol\u003e\n  \u003cp\u003eBecause water-pump layouts and shaft-rotation procedures vary between engine families, follow the service manual for your exact model rather than relying on a general installation sequence.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should an impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eReplace an impeller when it is cracked, brittle, deformed, damaged, or no longer producing the expected cooling-water flow. A weak tell-tale stream or an overheating warning can indicate a cooling-system problem, but other components should also be inspected.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this product include the key?\u003c\/summary\u003e\n    \u003cp\u003eYes. The company product description identifies this item as a water pump impeller with key, and the supplied contents are one impeller and one matching key.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this include a complete water pump repair kit?\u003c\/summary\u003e\n    \u003cp\u003eNo. This listing is for a single impeller supplied with its key. A gasket, wear plate, seal, pump cover, and other water-pump components are not included unless separately specified.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n    \u003cp\u003eMatch the engine manufacturer, horsepower, stroke type, exact model, gearcase configuration, and serial-number range where applicable. Also compare the original impeller, keyway, and pump housing before installation.\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. The manufacturer and aftermarket reference numbers shown on this page are cross-reference identifiers and do not mean that the replacement is manufactured by the original engine manufacturer.\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 application against your engine and original part before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not use a horsepower-only match as final confirmation; stroke type, model, gearcase, and serial conditions may affect fitment.\u003c\/li\u003e\n    \u003cli\u003eStop operation immediately if the engine overheats or the tell-tale flow is weak after installation.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when lower-unit removal or water-pump servicing is unfamiliar.\u003c\/li\u003e\n    \u003cli\u003eManufacturer names and part numbers are used only for identification and compatibility reference.\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 outboard maintenance and repair.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-focused listings\u003c\/strong\u003e — Reference numbers and fitment guidance are provided to help you compare the correct part.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupport for installation planning\u003c\/strong\u003e — Always use the service information for your exact engine when completing water-pump work.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723982344507,"sku":"17IH009-K","price":20.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_for_Honda_30-250_HP___18-3056_-_JLM_MARINE-8288262.jpg?v=1763039311"}],"url":"https:\/\/seasierra.com\/collections\/mercury-2-stroke-70-90hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}