{"title":"Force 2-Stroke 15-25HP Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003cp\u003eThis page is tailored for Force 2‑Stroke 15–25HP outboard engines. Use it to find compatible parts and practical service information, including maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Force collection. Scroll to the bottom of this page to start browsing parts for this engine; on the collection page, use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#0a5ad4;color:#fff;text-decoration:none;border-radius:6px;\"\u003eBrowse All Force Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:980px;margin:0 auto;padding:12px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 15–25HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate\/serial tag: Typically on the transom bracket or swivel bracket. Look for “Force,” often labeled US Marine\/Brunswick on later 1990s engines.\u003c\/li\u003e\n    \u003cli\u003eModel code \u0026amp; suffix: Suffixes often denote shaft length (S ≈ 15\" short, L ≈ 20\" long), tiller vs remote control, and electric vs manual start.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: Most 15–25HP Force 2‑strokes are twin‑cylinder, carbureted. 9.9\/15HP share a platform; 20\/25HP share a larger twin. Verify year\/gearcase style when buying propeller and lower‑unit parts.\u003c\/li\u003e\n    \u003cli\u003eFuel\/oiling: Small Force engines are usually premix 2‑stroke (TC‑W3 oil); verify the manual or decals near the cowl for the exact ratio.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"max-width:980px;margin:0 auto;padding:12px;\"\u003e\n  \u003ch2\u003eEngine\/Platform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003e9.9–15HP 2‑Stroke Twin\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInline‑2, carbureted 2‑stroke with reed induction; manual or electric start.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e9.9HP\/15HP 2‑Stroke models (mid‑1980s to late‑1990s, US Marine\/Brunswick Force).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eLightweight, simple to service, excellent portability and trolling manners.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePremix fuel\/oil per manual (often 50:1). Verify prop hub spline count and gearcase style when selecting propellers and lower‑unit components.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003e20–25HP 2‑Stroke Twin\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInline‑2, carbureted 2‑stroke; tiller or remote models; 15\" or 20\" shaft lengths.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e20HP\/25HP 2‑Stroke models (early‑1990s through late‑1990s).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eMore thrust for loaded skiffs and pontoons; simple carb service; wide parts availability.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eWater pump and gearcase parts may vary by year. Confirm serial\/model and shaft length before ordering.\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:980px;margin:0 auto;padding:12px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for 2‑stroke outboards. Always follow your official service manual for exact procedures and specifications.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eCheck for water intrusion (milky oil) and metal debris.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\"\u003eForce Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInspect 50 hrs; replace yearly\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eUse the plug type\/gap specified in the manual.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInline fuel filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e100 hrs or as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eReplace sooner if debris or stale fuel is suspected.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;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:6px;border-bottom:1px solid #eee;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eEvery 2 seasons or 200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eReplace sooner if tell‑tale is weak or overheating occurs.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/force-water-pump-repair-kits\"\u003eForce Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eAnodes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInspect 50 hrs; replace when 50% gone\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eMatch material to your water (aluminum\/magnesium\/zinc).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;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:6px;border-bottom:1px solid #eee;\"\u003eLower unit seal kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eAs needed\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eService if you find milky gear oil or after fishing‑line seal damage.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/force-lower-unit-seal-kits\"\u003eForce Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003e2‑Stroke oil mix\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEvery refuel\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eTC‑W3‑rated oil, commonly 50:1 (verify your manual\/decals).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\"\u003eForce Outboard Parts\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:980px;margin:0 auto;padding:12px;\"\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\/force-water-pump-repair-kits\"\u003eForce Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals – \u003ca href=\"https:\/\/seasierra.com\/collections\/force-lower-unit-seal-kits\"\u003eForce Lower Unit Seal 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\u003ePropellers – \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eStability \u0026amp; Trim – \u003ca href=\"https:\/\/seasierra.com\/collections\/outboard-hydrofoil-stabilizers\"\u003eOutboard Hydrofoil Stabilizers\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:980px;margin:0 auto;padding:12px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInspect water intake screens, thermostat, and impeller condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eWater pump kit, impeller, thermostat, intake screens\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eFresh fuel, primer bulb, choke\/enrichment, plug condition and gap.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eSpark plugs, fuel filter, carburetor rebuild kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eProp damage\/pitch, compression, timing, fuel delivery.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003ePropeller, fuel pump, reeds, carburetor components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eVerify mix ratio, stuck choke, prolonged cold‑start enrichment.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eSpark plugs, choke components, carburetor needle\/float set\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck oil level and color; pressure test for leaks after fishing‑line strikes.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eLower unit seal kit, bearings, gears, propshaft components\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:980px;margin:0 auto;padding:12px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre Force 15–25HP parts interchangeable across years?\u003c\/summary\u003e\n    \u003cp\u003eMany components interchange, but Force models evolved from the mid‑1980s through the late‑1990s (Chrysler‑era to US Marine\/Brunswick). Gearcases, ignition, and prop hub splines can differ. Always confirm by model\/serial, year range, and shaft length.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eAs a preventative measure every 2 seasons or ~200 hours. Replace sooner if the tell‑tale weakens, the engine overheats, or you operated in sandy\/weedy water.\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\u003eAt least once per season or every 100 hours. Inspect for milkiness (water) and metal debris; if found, service seals before further use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat info do you need to verify parts fit?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full model and serial number from the nameplate, horsepower, approximate year, shaft length (S\/L), tiller vs remote control, and electric vs manual start. Photos of the nameplate and the part needing replacement help ensure compatibility.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width:980px;margin:0 auto;padding:16px 12px;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse the main Force collection and use the filters to narrow results.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\" style=\"display:inline-block;margin:8px 0;padding:10px 14px;background:#0a5ad4;color:#fff;text-decoration:none;border-radius:6px;\"\u003eShop Force Outboard Parts\u003c\/a\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-force-mariner-15-25-hp-replaces-47-85089t7-47-85089q4","title":"Water Pump Impeller and Plate Kit for Mercury Mariner 2-Stroke 15–25 HP Outboards","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\u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis \u003cstrong\u003ewater pump impeller and plate kit\u003c\/strong\u003e is intended for selected Mercury and Mariner 2-stroke outboard engines in the 15–25 HP range. The kit is supplied for water-pump service and includes the impeller and pump plate needed for the applicable repair.\u003c\/p\u003e\n    \u003cp\u003eReplacing a worn impeller helps restore water-pump circulation and supports proper engine cooling. Always compare the engine model, stroke, serial number, and original part before installation.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury and Mariner 2-stroke outboard water-pump service.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eKit contents:\u003c\/strong\u003e Water pump impeller and plate.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstallation method:\u003c\/strong\u003e Direct replacement for the applicable original water-pump components.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHousing:\u003c\/strong\u003e Water-pump housing is not included.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBrand status:\u003c\/strong\u003e Aftermarket replacement; Mercury and Mariner references are provided for identification.\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 manufacturer references are listed for identifying the applicable impeller and water-pump service application. Part-number appearance does not replace model and serial-number verification.\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\u003eReference Brand\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 \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e47-85089-1\u003c\/td\u003e\n                    \u003ctd\u003eListed impeller reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e47-85089-3\u003c\/td\u003e\n                    \u003ctd\u003eListed impeller reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e47-85089-10\u003c\/td\u003e\n                    \u003ctd\u003eListed impeller reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e47-85089-20\u003c\/td\u003e\n                    \u003ctd\u003eListed impeller reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e47-8M0027792\u003c\/td\u003e\n                    \u003ctd\u003eListed impeller reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eGLM Marine\u003c\/td\u003e\n                    \u003ctd\u003e12107\u003c\/td\u003e\n                    \u003ctd\u003eAftermarket reference\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eSierra Marine\u003c\/td\u003e\n                    \u003ctd\u003e18-3215\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\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n    \u003cp\u003eThis kit is listed for the following Mercury and Mariner 2-stroke applications. The model, horsepower, stroke, and serial conditions must be considered 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\n                \u003ctr\u003e\n                    \u003cth\u003eBrand\u003c\/th\u003e\n                    \u003cth\u003eModel or Application\u003c\/th\u003e\n                    \u003cth\u003eRated HP\u003c\/th\u003e\n                    \u003cth\u003eStroke\u003c\/th\u003e\n                    \u003cth\u003eSerial Condition\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\u003e15 XD \/ BigFoot\u003c\/td\u003e\n                    \u003ctd\u003e15 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eVerify exact model and serial number\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e18 \/ 18XD\u003c\/td\u003e\n                    \u003ctd\u003e18 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eVerify exact model and serial number\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e20 \/ 20XD\u003c\/td\u003e\n                    \u003ctd\u003e20 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eVerify exact model and serial number\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e25 Sea Pro, Marathon, and Super 15\u003c\/td\u003e\n                    \u003ctd\u003e25 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eVerify exact model and serial number\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n                    \u003ctd\u003e25 HP 3-cylinder\u003c\/td\u003e\n                    \u003ctd\u003e25 HP\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003eS\/N E268781 and later\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 available company fitment records identify these 2-stroke applications. They do not establish compatibility with the separate 4-stroke 323 cc BigFoot applications or with Force outboards, so those applications are not included in this listing.\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 and plate kit\u003c\/dd\u003e\n        \u003cdt\u003eApplication\u003c\/dt\u003e\n        \u003cdd\u003eSelected Mercury and Mariner 2-stroke outboards\u003c\/dd\u003e\n        \u003cdt\u003eRated Engine Range\u003c\/dt\u003e\n        \u003cdd\u003e15–25 HP, subject to the listed model and serial conditions\u003c\/dd\u003e\n        \u003cdt\u003eHousing\u003c\/dt\u003e\n        \u003cdd\u003eNot included\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\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        \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Water pump plate\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eThe water-pump housing and any components not specifically listed above are not 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 engine model, horsepower, 2-stroke configuration, serial number, and original impeller reference before beginning work.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the battery where applicable and follow the outboard manufacturer’s safety procedures.\u003c\/li\u003e\n        \u003cli\u003eRemove the lower unit according to the service instructions for your exact engine.\u003c\/li\u003e\n        \u003cli\u003eRemove the water-pump housing and retain the fasteners and components that are to be reused.\u003c\/li\u003e\n        \u003cli\u003eRemove the old impeller and pump plate, then inspect the housing, drive key, mating surfaces, and related hardware for wear or damage.\u003c\/li\u003e\n        \u003cli\u003eClean the mating surfaces before installing the replacement plate and impeller.\u003c\/li\u003e\n        \u003cli\u003eInstall the impeller in the correct direction and position for the engine. Use the manufacturer’s specified lubricant and installation method where required.\u003c\/li\u003e\n        \u003cli\u003eReinstall the water-pump housing and tighten fasteners to the manufacturer’s specified torque.\u003c\/li\u003e\n        \u003cli\u003eReinstall the lower unit and reconnect any removed linkages, wiring, and hardware.\u003c\/li\u003e\n        \u003cli\u003eRun the engine only with an appropriate water supply or while the boat is in the water. Confirm a steady tell-tale stream and check for leaks or overheating.\u003c\/li\u003e\n    \u003c\/ol\u003e\n    \u003cp\u003eBecause water-pump designs and torque specifications vary by model, consult the service manual for the exact engine before installation.\u003c\/p\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 this kit fits my engine?\u003c\/summary\u003e\n        \u003cp\u003eVerify that your outboard is one of the listed Mercury or Mariner 2-stroke applications, then match the horsepower, model designation, serial condition, and original impeller reference. Do not rely on horsepower alone.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eDoes this kit fit Force outboards?\u003c\/summary\u003e\n        \u003cp\u003eForce compatibility is not established in the applicable company fitment record for this product, so Force outboards are not included in the confirmed fitment list.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eDoes this kit fit 4-stroke BigFoot engines?\u003c\/summary\u003e\n        \u003cp\u003eThe primary company fitment record for this listing specifies 2-stroke applications. The separate 4-stroke BigFoot references found in related records are not combined with this 2-stroke fitment list.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\n        \u003cp\u003eCommon symptoms include a weak or intermittent tell-tale stream, an overheating warning, steam, or an engine that runs hotter than normal. Stop operation if the engine overheats and inspect the cooling system.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eIs the water-pump housing included?\u003c\/summary\u003e\n        \u003cp\u003eNo. This listing includes the impeller and pump plate. The water-pump housing is not included.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eCan I replace only the impeller?\u003c\/summary\u003e\n        \u003cp\u003eThe impeller is a serviceable component, but this product is supplied as an impeller-and-plate kit. Inspect the housing, plate, key, and related components during service and replace worn parts as required by the engine manufacturer’s service procedure.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\n        \u003cp\u003eNo. This is an aftermarket replacement. Mercury and Mariner numbers are provided as reference numbers for identification and fitment checking.\u003c\/p\u003e\n    \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003eVerify the exact engine model, horsepower, stroke, serial number, and original part before ordering.\u003c\/li\u003e\n        \u003cli\u003eDo not operate an outboard without an adequate water supply.\u003c\/li\u003e\n        \u003cli\u003eStop immediately if the engine overheats or the tell-tale stream is absent or weak.\u003c\/li\u003e\n        \u003cli\u003eUse the manufacturer’s service manual for torque values, lower-unit procedures, and inspection requirements.\u003c\/li\u003e\n        \u003cli\u003eProfessional installation is recommended if you are not experienced with outboard lower-unit and water-pump service.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical replacement components for routine outboard maintenance and repair.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFitment-Focused Listings\u003c\/strong\u003e — Model, horsepower, stroke, and serial conditions are provided to support careful part selection.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorldwide Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are shown at checkout based on destination and availability.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723783999803,"sku":"19KM001","price":34.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_-Force_-Mariner_47-85089T7_-_JLM_MARINE-8289854.jpg?v=1763031703"}],"url":"https:\/\/seasierra.com\/collections\/force-2-stroke-15-25hp-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}