{"title":"Sears Gamefisher 13.5HP 2-Stroke Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;max-width:1000px;margin:0 auto 18px auto\"\u003e\n  \u003cp\u003e\n    This page is for Sears Gamefisher 13.5HP 2‑Stroke outboard engines. It helps you find compatible parts and practical service information, including maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Force collection to see compatible components that fit many Sears\/Gamefisher models. 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.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\" style=\"display:inline-block;background:#0f766e;color:#fff;padding:10px 14px;border-radius:6px;text-decoration:none\"\u003eBrowse All Force Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:1000px;margin:0 auto 18px auto\"\u003e\n  \u003ch2\u003eHow to Identify Your 13.5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the nameplate\/serial plate on the transom bracket (clamp area) or under the cowling. Note the model, serial, and any suffix letters.\u003c\/li\u003e\n    \u003cli\u003eModel suffixes often indicate shaft length (S = short 15\", L = long 20\") and start\/control type (M = manual, E = electric). Record these for parts matching.\u003c\/li\u003e\n    \u003cli\u003eGamefisher-branded 2‑Stroke models were commonly built by Force\/Chrysler in this HP class; compare your tag to Force\/Chrysler references for better parts alignment.\u003c\/li\u003e\n    \u003cli\u003eConfirm whether the engine is premix (no separate oil tank) and whether it has manual or electric start—both affect certain service parts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width:1000px;margin:0 auto 18px auto\"\u003e\n  \u003ch2\u003eEngine\/Platform Overview\u003c\/h2\u003e\n  \u003ch3\u003e13.5HP 2‑Stroke Small-Outboard 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 #f3f4f6\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInline‑2, carbureted 2‑Stroke, rope or electric start depending on model.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eSears Gamefisher 13.5HP family; akin to Force\/Chrysler 9.9–15HP-era small gearcases in many applications.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eLightweight, simple ignition\/carb service, solid thrust for small aluminum or inflatable boats.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eSome water pump and lower unit parts overlap with Force\/Chrysler small outboards. Always match by model\/serial and shaft length; impeller\/thermostat\/anode styles can vary by year and gearcase.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"max-width:1000px;margin:0 auto 18px auto\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for small 2‑Stroke outboards. Always follow the official service manual for your exact model and duty cycle.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eCheck for water (milky oil) and metal. Service seals if contamination is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\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 #f3f4f6\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInspect every 50 hours; replace 100 hours\/annual\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eCheck gap, replace if fouled or worn. Keep spares aboard.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\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 #f3f4f6\"\u003eInline fuel filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eReplace sooner if debris or stale fuel is suspected.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e200 hours or every 2 seasons\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eReplace more often if run in sandy\/shallow water or if tell‑tale is weak.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\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 #f3f4f6\"\u003eAnodes (zincs)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eUse alloy appropriate to water type (salt, brackish, fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003e2‑Stroke fuel\/oil mix (if premix)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eEvery refuel\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eTypical 50:1 with TC‑W3 marine oil unless your manual specifies otherwise.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\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  \u003cp style=\"font-size:12px;color:#6b7280\"\u003e*Intervals vary by use, environment, and model year—always consult your service manual.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width:1000px;margin:0 auto 18px auto\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eWater pump \u0026amp; cooling: \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\u003eLower unit \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\u003eIgnition \/ electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\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\u003eCorrosion protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropeller safety: \u003ca href=\"https:\/\/seasierra.com\/collections\/propeller-guards\"\u003ePropeller Guards\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eTrim \u0026amp; stability aids: \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:1000px;margin:0 auto 18px auto\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;padding:8px\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eClear tell‑tale outlet, inspect intake screen, verify impeller and thermostat condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eWater pump impeller\/kit, thermostat, intake screen, hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eFresh 50:1 premix, primer bulb firmness, choke operation, plug condition\/gap, idle mixture.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eSpark plugs, fuel filter, carburetor repair kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eProp condition\/pitch, compression check, ignition timing, fuel pump diaphragm.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003ePropeller, fuel pump kit, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eVerify oil ratio isn’t too rich, avoid long idling, replace fouled plugs, refresh fuel.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eSpark plugs, carb service parts\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eGearcase noise or metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eDrain oil and inspect; check for water intrusion and fishing line at prop shaft; test seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f3f4f6\"\u003eLower unit seal kit, bearings, washers\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px;color:#6b7280\"\u003eTip: When in doubt, service the water pump first—cooling issues are common on small 2‑Strokes.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"max-width:1000px;margin:0 auto 18px auto\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eMany small Sears Gamefisher 13.5HP engines share components with Force\/Chrysler 9.9–15HP families, but there are differences by year, shaft length, and gearcase. Always match parts using your model\/serial and verify dimensions before ordering.\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 rule, replace every 200 hours or every 1–2 seasons. Replace sooner if the motor has been run in sandy or silty water, if the tell‑tale weakens, or after an overheat event.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eEvery 100 hours or at least once per year. If the oil looks milky, smells burned, or contains metal, service the seals and inspect the gears and bearings.\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 model and serial number from the nameplate, shaft length (S\/L), start type (manual\/electric), and a clear photo of the part or area being serviced. This ensures correct water pump, anode, and seal kit selection.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;max-width:1000px;margin:0 auto 18px auto\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse the main Force collection and use the filters to zero in on your Sears\/Gamefisher 13.5HP components.\u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\" style=\"display:inline-block;background:#0f766e;color:#fff;padding:10px 14px;border-radius:6px;text-decoration:none\"\u003eShop Force Outboard Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n  \u003cp style=\"font-size:12px;color:#6b7280\"\u003eIf you’re unsure about your model, send us a clear photo of the nameplate and the part you need—we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"water-pump-repair-kit-fits-mercury-marine-2-stroke-15-25-hp-4-stroke-9-9-15-hp-replaces-99157t2-46-99157t2","title":"Water Pump Repair Kit for Mercury and Mariner Outboards – 2-Stroke 15–25 HP and 4-Stroke 9.9–15 HP","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Repair Kit\u003c\/strong\u003e is an aftermarket replacement for selected Mercury and Mariner outboards, including 2-stroke 15–25 HP models and 4-stroke 9.9–15 HP BigFoot models. It also covers selected Force 25 HP and Sears Gamefisher 25 HP 2-stroke applications. Always verify the complete engine model, year, stroke, and serial-number range before ordering.\u003c\/p\u003e\n\u003cp\u003eThis kit is listed as a replacement or cross-reference for Mercury part numbers \u003cstrong\u003e99157T2\u003c\/strong\u003e, \u003cstrong\u003e46-99157T2\u003c\/strong\u003e, \u003cstrong\u003e85098A2\u003c\/strong\u003e, \u003cstrong\u003e99157A2\u003c\/strong\u003e, and \u003cstrong\u003e46-85098A2\u003c\/strong\u003e, and Quicksilver part number \u003cstrong\u003e85089Q4\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete upper water-pump service kit for applicable outboard lower units.\u003c\/li\u003e\n\u003cli\u003eIncludes the impeller, pump housing, face plate, gaskets, seal, key, washers, insulators\/grommets, and O-rings listed below.\u003c\/li\u003e\n\u003cli\u003eAftermarket replacement components intended for freshwater and saltwater service when installed and maintained correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these manufacturer and aftermarket references to compare the kit with the parts removed from your engine. These references do not replace model, year, stroke, 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\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e99157T2 \/ 46-99157T2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e85098A2 \/ 99157A2 \/ 46-85098A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuicksilver\u003c\/td\u003e\n\u003ctd\u003e85089Q4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe applications below are the listed fitment scope for this replacement kit. Confirm the engine model, horsepower, stroke, year, and serial number before purchase. A number appearing in a parts catalog alone does not confirm fitment outside the conditions shown here.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003cth\u003eSerial or Model Notes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eBigFoot\u003c\/td\u003e\n\u003ctd\u003e9.9 (323cc)\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2005\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eUSA serial 0G760300–0T979999; BEL serial 0P075166–0P325499\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eBigFoot\u003c\/td\u003e\n\u003ctd\u003e15 (323cc)\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eUSA serial 0G590000 and up; BEL serial 9973100 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eXD, BigFoot\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eBEL serial 9927000 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e18, 18XD\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eUSA serial 5837437 and up; AUS serial 8071973 and up; BEL serial 9308306 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e20, 20XD\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1987\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eUSA serial 6443973–0T800749; BEL serial 9415101 and up; CAN serial 7209533 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e25, 25XD\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1987\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eUSA serial 5705532 and up; AUS serial 8073158 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e25 3-Cylinder\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997 and up\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eUSA serial 0E268781 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e25 Sea Pro, Marathon, Super 15\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1988–1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eUSA serial 0B238464 and up; BEL serial 9507381 and up; CAN serial 0A730007 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003eBigFoot\u003c\/td\u003e\n\u003ctd\u003e9.9 (323cc)\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2005\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003eBigFoot\u003c\/td\u003e\n\u003ctd\u003e15 (323cc)\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e15 XD, BigFoot\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e18, 18XD\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1985\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e20, 20XD\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–1987\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e25, 25XD\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1980–1987\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e25 3-Cylinder\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997 and up\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e25 Sea Pro, Marathon, Super 15\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1988–1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eVerify the corresponding Mercury-derived serial range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForce\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eIncludes model codes such as H025201RD [MH] and H025211RD [MLH]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSears\u003c\/td\u003e\n\u003ctd\u003eGamefisher 25\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1998\u003c\/td\u003e\n\u003ctd\u003e99157T2\u003c\/td\u003e\n\u003ctd\u003eIncludes models 225.582500 and 225.592500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n\u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eUpper water pump repair kit\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement for the applicable original water-pump assembly\u003c\/dd\u003e\n\u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline outboard applications\u003c\/dd\u003e\n\u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eStainless steel and plastic components\u003c\/dd\u003e\n\u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eNeoprene rubber\u003c\/dd\u003e\n\u003cdt\u003ePackage Dimensions\u003c\/dt\u003e\n\u003cdd\u003e151 × 108 × 52 mm (5.94 × 4.06 × 2.05 inches)\u003c\/dd\u003e\n\u003cdt\u003ePackage Weight\u003c\/dt\u003e\n\u003cdd\u003e0.289 kg (10.2 ounces)\u003c\/dd\u003e\n\u003cdt\u003eService Position\u003c\/dt\u003e\n\u003cdd\u003eUpper water-pump components in the lower unit\u003c\/dd\u003e\n\u003c\/dl\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 — 47-85089-3, 47-85089-10, or 8508910 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Pump housing assembly — 99157A02 or 99157A1 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Face plate — 85083 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Gasket — 993261 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Key — 8M0032838 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Seal — 85090 or 85090001 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Washer — 12-86645-1 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e4 x\u003c\/span\u003e Insulator\/grommet — 23-85095 reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e3 x\u003c\/span\u003e O-ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the negative battery cable and remove the engine cowling.\u003c\/li\u003e\n\u003cli\u003ePlace a drain pan under the lower unit and remove the gearcase oil drain\/fill screw if the gearcase lubricant must be drained during service.\u003c\/li\u003e\n\u003cli\u003eRemove the fasteners securing the lower unit to the driveshaft housing.\u003c\/li\u003e\n\u003cli\u003eCarefully lower and separate the gearcase, taking care around the shift shaft and water tube.\u003c\/li\u003e\n\u003cli\u003eRemove the old water-pump housing, impeller, face plate, gaskets, seal, and related components.\u003c\/li\u003e\n\u003cli\u003eClean the driveshaft and all mating surfaces. Remove gasket residue, debris, and corrosion without damaging the sealing surfaces.\u003c\/li\u003e\n\u003cli\u003eInstall the new key and impeller on the driveshaft, then install the face plate, gaskets, seal, and pump housing in the correct order for the engine.\u003c\/li\u003e\n\u003cli\u003eLightly lubricate the appropriate O-rings and the inside of the pump cup with a suitable marine lubricant. Do not install a neoprene impeller dry.\u003c\/li\u003e\n\u003cli\u003eTighten the pump-housing fasteners to the engine manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eReinstall the lower unit, ensuring that the driveshaft, shift shaft, and water tube are correctly aligned.\u003c\/li\u003e\n\u003cli\u003eRefill the gearcase with the correct marine gear lubricant if it was drained.\u003c\/li\u003e\n\u003cli\u003eRun the engine only in water or with an appropriate flushing attachment, and verify a steady tell-tale stream before normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my water pump is failing?\u003c\/summary\u003e\u003cp\u003eCommon signs include a weak or absent tell-tale stream, an overheating warning, reduced cooling-water flow, or a damaged, brittle, cracked, or deformed impeller found during inspection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I replace the water-pump impeller?\u003c\/summary\u003e\u003cp\u003eReplacement intervals depend on use, storage, water conditions, and the engine manufacturer's maintenance schedule. Many operators replace an impeller every one to two years or at the recommended service-hour interval, with more frequent inspection in saltwater or debris-heavy conditions.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this kit fit an engine whose serial number is not listed?\u003c\/summary\u003e\u003cp\u003eDo not assume compatibility when the serial number is outside the ranges shown. Compare the original water-pump part numbers and consult the applicable engine parts catalog or a qualified marine technician before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM kit?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement kit. Mercury, Mariner, Force, Sears, Quicksilver, and other referenced names and part numbers are used only to identify applicable engines or replacement references.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need special tools for installation?\u003c\/summary\u003e\u003cp\u003eBasic hand tools are typically required. A torque wrench is recommended so the pump-housing and lower-unit fasteners can be tightened to the manufacturer's specifications.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs lubricant required during installation?\u003c\/summary\u003e\u003cp\u003eUse a suitable marine lubricant on O-rings and appropriate assembly surfaces. Do not start the engine with a dry impeller, and follow the engine manufacturer's instructions for initial priming and lubrication.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow fast do you ship?\u003c\/summary\u003e\u003cp\u003eTypical transit is 5–15 days. Standard shipping is free, and expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eParts are covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window for unused items in their original condition. Contact support with your order details for warranty or return instructions.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the engine brand, model, horsepower, stroke, year, serial number, and original part number before purchase.\u003c\/li\u003e\n\u003cli\u003eCompare the supplied components with the original assembly before installation. Do not operate the engine if any component, seal, or fastener is missing or incorrectly installed.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement part, not an OEM component. Referenced brand names and part numbers identify compatibility only.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended. Incorrect water-pump installation can cause insufficient cooling and severe engine damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts selected for reliable fit and service performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Standard delivery is available to most regions, with typical transit of 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We work with manufacturing partners to provide replacement parts at competitive prices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718267474235,"sku":"18KM006-QM","price":42.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/18KM006-QM.png?v=1762958595"}],"url":"https:\/\/seasierra.com\/collections\/sears-gamefisher-13-5hp-2-stroke-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}