{"title":"Force 2-Stroke 18-25HP Outboard Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page supports Force 2-Stroke 18–25HP outboard engines. Use it to find compatible parts and key service information, including maintenance tips, common replacement items, 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, and remember that on the collection page you can 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:#0b5; 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=\"padding:16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 18–25HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the nameplate\/serial plate on the transom bracket or swivel bracket. Record the full model designation and serial number.\u003c\/li\u003e\n    \u003cli\u003eDecode suffixes for shaft length (short\/long), control type (tiller\/remote), and start system (manual\/electric). These options affect ignition, wiring, and control parts.\u003c\/li\u003e\n    \u003cli\u003eConfirm it’s a 2-stroke platform (premix or oil-injection label on the cowl, carburetor present) rather than a 4-stroke.\u003c\/li\u003e\n    \u003cli\u003eNote differences between 18HP and 25HP variants (carburetor jetting, timing, and prop pitch often differ). Matching the exact variant helps ensure parts fit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003eForce 18–25HP 2‑Stroke Platform\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCarbureted 2-stroke, typically twin‑cylinder with CDI ignition and a mechanical fuel pump.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e18HP and 25HP 2‑stroke variants from the 1990s era, offered in short\/long shaft, tiller or remote, and manual or electric start configurations.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eLightweight, simple carburetor service, and strong low‑speed thrust for small craft and tenders.\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 items interchange across nearby years, but verify model\/serial before ordering. Keep the cooling and fuel systems clean for best reliability.\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=\"padding:16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for recreational use. Always follow the procedures and schedules in your official service manual.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCheck for water\/milkiness and metal. If contaminated, pressure test and service seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eUse the correct heat range and gap. Replace if fouled or worn.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark plug\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eFuel filter \/ inline filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect 50 hrs; replace ~100 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eKeeps debris and water out of the carb. Consider a water‑separating filter upstream.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEvery 2–3 seasons or ~200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eReplace sooner if used in sand\/silt or if tell‑tale weakens.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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:8px; border-bottom:1px solid #f0f0f0;\"\u003eAnodes (zincs)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect 50 hrs; replace when \u0026lt;50% remains\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eMatch alloy to water type (salt, brackish, or fresh) for best protection.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003e2‑Stroke oil \u0026amp; premix\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eEach refuel\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eTypical premix is 50:1 with TC‑W3 oil unless your manual specifies otherwise. Verify oil injection if equipped.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\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:8px;\"\u003ePropeller \u0026amp; hub\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect regularly\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck for dings, bent blades, and spun hubs. Verify correct pitch for load.\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=\"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\/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\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\"\u003eFuel Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase 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\u003ePropulsion \u0026amp; Handling: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/propeller-guards\"\u003ePropeller Guards\u003c\/a\u003e, \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=\"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 #e5e7eb; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWeak tell‑tale \/ overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eInspect intake screen for blockage; verify impeller condition; confirm thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCheck spark plug gap and condition; look for stale fuel; verify choke\/enrichment function; inspect fuel filter.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs, carb kit, primer bulb, fuel filter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCompression test; verify throttle plate travel; check prop for damage or wrong pitch; confirm fuel delivery.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eCarburetor kit, fuel pump diaphragm, propeller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eVerify premix ratio; ensure plugs aren’t fouled; check for stuck choke or enrichment.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs, choke components, needle\/seat\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise \/ metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect prop for fishing line; check gear oil for water; pressure test gearcase.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eProp hardware, lower unit seal kit, bearings\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=\"padding:16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable across different years or variants?\u003c\/summary\u003e\n    \u003cp\u003eMany service items carry over between nearby years, but ignition, carburetion, and gearcase components can vary. Always confirm using the model and serial from the nameplate before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs preventive maintenance, replace the impeller every 2–3 seasons or about 200 hours. Replace sooner if you operate in sandy\/silty water or notice a weak tell‑tale stream or overheat alerts.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change gear oil?\u003c\/summary\u003e\n    \u003cp\u003eChange lower unit gear oil at least annually or every 100 hours. If you find milky oil or metal debris, pressure test the gearcase and service seals or bearings as needed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003ePlease provide the model and serial number from the nameplate, shaft length, start type (manual\/electric), control type (tiller\/remote), and any existing part numbers or clear photos of the components.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e7eb;\"\u003e\n  \u003cp\u003eReady to find parts for your Force 2‑Stroke 18–25HP? Browse the main Force collection and filter by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\" style=\"display:inline-block; margin:8px 0 4px; padding:10px 14px; background:#0b5; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Force Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"color:#555; font-size:0.95em;\"\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-18-25hp-outboard-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}