{"title":"Mercury 2-Stroke 30-125HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;max-width:1000px;\"\u003e\n  \u003cp\u003eThis page is for Mercury 2-Stroke 30–125HP outboard engines. Use it to find compatible parts and service information, including maintenance tips, common replacement items, and troubleshooting guidance. You can also browse the main Mercury collection at any time. Scroll to the bottom of the page to start browsing parts for this engine, and 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\/mercury-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#0b5cab;color:#fff;text-decoration:none;border-radius:6px;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:1000px;padding:16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 30–125HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial plate on the transom bracket or swivel bracket (typically starboard side). Record the full serial number and any model designation.\u003c\/li\u003e\n    \u003cli\u003eModel coding and suffix letters may indicate shaft length (L\/XL), control type (tiller\/remote), and market region. Serial breaks are critical for parts matching.\u003c\/li\u003e\n    \u003cli\u003eWithin 30–125HP 2‑Stroke families you’ll commonly find inline‑3 (mid‑range) and inline‑4 (upper range) platforms. Gearcase, driveshaft length (20\" vs 25\"), and ignition\/fuel components can differ.\u003c\/li\u003e\n    \u003cli\u003eConfirm whether your engine uses oil injection or premix; related fuel\/oil components and service steps vary accordingly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"max-width:1000px;padding:16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eInline‑3 2‑Stroke (approx. 40–90HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInline‑3 carbureted 2‑Stroke; commonly with oil injection on later units.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGeneric 40–90HP 2‑Stroke inline‑3 models (various years\/regions).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eLight weight, strong hole‑shot, simple carb service.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase components and impellers are family‑based but can vary by serial number and shaft length (20\"\/25\"). Check serial breaks before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eInline‑4 2‑Stroke (approx. 100–125HP)\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;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInline‑4 carbureted 2‑Stroke with larger gearcase and heavier midsection.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGeneric 100–125HP 2‑Stroke inline‑4 models (various years\/regions).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eBroad torque band and strong top‑end for heavier hulls.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eMany gearcase items overlap with inline‑3 families, but prop shafts, gears, and clutch dogs may differ by ratio\/jaw style. Verify by serial number and gear ratio.\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;padding:16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for Mercury 2‑Stroke engines; always follow your specific service manual and local operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect for water intrusion\/metal on magnet; reseal if contaminated.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect every 50 hours; replace ~100 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGap to spec; replace sooner if fouling or hard starts.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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:6px 0;\"\u003eFuel filter \/ in‑line filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eReplace more often with ethanol fuel or dirty tanks.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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 0;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 1–2 seasons (or sooner if run dry\/sandy)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCritical for cooling; replace housing as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAnodes (external\/internal)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect quarterly; replace at ~50% loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eChoose zinc\/aluminum\/magnesium based on water type.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\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 0;\"\u003eLower unit seal kit (if leaking)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eAs needed\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eUse if water or metal is found in gear oil.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePropeller \u0026amp; hub inspection\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eEvery 50–100 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eRemove to check for fishing line; inspect hub and key.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eOil injection system check (if equipped) \/ premix ratio\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify pump output\/lines, or maintain correct premix per manual.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury 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:1000px;padding:16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropellers \u0026amp; Hardware: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:1000px;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;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eInspect intake screens, tell‑tale hose, and impeller condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eWater pump kit, thermostat, intake screen.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eCheck prop for damage, plug condition, and fuel restriction.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003ePropeller, spark plugs, fuel filter, carburetor service parts.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eVerify choke\/enrichment, plug gap, fresh fuel, and compression.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs, fuel filter, primer bulb\/lines, carburetor kit.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eConfirm premix ratio or oil injection calibration; check for stuck choke.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eSpark plugs, fuel\/oil lines, oil pump check valve.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGearcase noise \/ metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eDrain and inspect gear oil; check magnet and prop shaft seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 0;\"\u003eGear oil, bearings, seals, lower unit seal kit, shims.\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:1000px;padding:16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome components interchange across inline‑3 and inline‑4 families, but many items change at serial breaks (e.g., gear ratios, ignition, seal dimensions). Always match by serial number, shaft length, and gear ratio 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\u003eInspect annually and replace every 1–2 seasons, or immediately after any overheat, sand ingestion, or dry‑running event. Boats used in silty\/sandy or warm waters benefit from yearly replacement.\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 every 100 hours or once per year. If water or metal is present, service the gearcase and replace seals before returning to service.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the engine’s serial number, horsepower, shaft length (20\"\/25\"), control type (tiller\/remote), and any noted gear ratio. Photos of the nameplate and the part needing replacement are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px;border-top:1px solid #e5e7eb;max-width:1000px;\"\u003e\n  \u003cp\u003eReady to find parts for your Mercury 2‑Stroke 30–125HP? Browse the main Mercury collection and filter by horsepower, year, and model to narrow your results.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#0b5cab;color:#fff;text-decoration:none;border-radius:6px;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;color:#4b5563;\"\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-repair-kit-fits-mercury-mariner-30-125-hp-replaces-46-8m0113799-46-43024a7","title":"4-Stroke Water Pump Service Kit with Housing for Mercury Mariner 40–115 HP – Replaces 46-43024A7 and 46-8M0113799","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\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis is a \u003cstrong\u003e4-stroke water pump service kit with housing\u003c\/strong\u003e for selected Mercury and Mariner outboard engines. It is intended to service the water pump assembly and replace the existing pump housing and related service components where the listed model and engine details match.\u003c\/p\u003e\n  \u003cp\u003eThe product is listed for Mercury Mariner 40–115 HP applications, including Bigfoot, carbureted, EFI, Bodensee, and specified 1,596 cc, 1,731 cc, 996 cc, and 1,741 cc configurations. Always compare the complete engine model and serial number with your original equipment before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e4-stroke water pump service kit with housing.\u003c\/li\u003e\n    \u003cli\u003eDesigned for selected Mercury and Mariner outboard applications.\u003c\/li\u003e\n    \u003cli\u003eAftermarket references include GLM Marine 12094 and Sierra Marine 18-3214.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThe following references are associated with this service kit. Reference numbers are provided for identification and should not be treated as confirmation for every engine configuration.\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\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart 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\u003e46-43024A7\u003c\/td\u003e\n          \u003ctd\u003eOEM reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e46-8M0113799\u003c\/td\u003e\n          \u003ctd\u003eOEM reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e43024A5, 43024A6, 43026T9, 46-43024A09\u003c\/td\u003e\n          \u003ctd\u003eAdditional company-listed OEM references\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eGLM Marine\u003c\/td\u003e\n          \u003ctd\u003e12094\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\u003e18-3214\u003c\/td\u003e\n          \u003ctd\u003eAftermarket reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda\u003c\/td\u003e\n          \u003ctd\u003e19021-ZW1-003\u003c\/td\u003e\n          \u003ctd\u003eAdditional company-listed reference; confirm application separately\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eFitment below follows the company application data for this product. Mercury and Mariner model families can use different pump assemblies across years and serial ranges, so verify the full model designation and serial number before installation.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eEngine \/ Configuration\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eApplication Details\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\u003eBigfoot, 4-cylinder carbureted\u003c\/td\u003e\n          \u003ctd\u003e40\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eBigfoot application\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003eBodensee, 4-cylinder Bigfoot\u003c\/td\u003e\n          \u003ctd\u003e45\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eBodensee Bigfoot application\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003eBigfoot; carbureted or EFI, 996 cc\u003c\/td\u003e\n          \u003ctd\u003e50\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eIncludes listed carbureted, EFI, and Bigfoot configurations\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003eBigfoot; carbureted or EFI, 996 cc\u003c\/td\u003e\n          \u003ctd\u003e60\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eIncludes listed carbureted, EFI, and Bigfoot configurations\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e1,596 cc or 1,731 cc\u003c\/td\u003e\n          \u003ctd\u003e75\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eUse the engine model and serial number to confirm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e1,596 cc or 1,731 cc\u003c\/td\u003e\n          \u003ctd\u003e90\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eUse the engine model and serial number to confirm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e1,741 cc or 1,731 cc\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eUse the engine model and serial number to confirm\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003e4-stroke water pump service kit with housing\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected Mercury and Mariner outboard engines\u003c\/dd\u003e\n    \u003cdt\u003eRated Horsepower Range\u003c\/dt\u003e\n    \u003cdd\u003e40–115 HP, subject to the specific engine configuration\u003c\/dd\u003e\n    \u003cdt\u003eStroke\u003c\/dt\u003e\n    \u003cdd\u003e4-Stroke\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eReplacement service installation; follow the engine manufacturer’s service procedures\u003c\/dd\u003e\n    \u003cdt\u003eAftermarket References\u003c\/dt\u003e\n    \u003cdd\u003eGLM Marine 12094; Sierra Marine 18-3214\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cp\u003eThis product is a water pump service kit with housing. The company listing does not provide a definitive item-by-item package quantity, so compare the supplied components with the original pump assembly before installation.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eConfirm the complete engine model, horsepower, stroke, and serial number before beginning work.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the battery and follow the engine manufacturer’s safety procedures.\u003c\/li\u003e\n    \u003cli\u003eRemove the lower unit according to the service manual for your exact engine.\u003c\/li\u003e\n    \u003cli\u003eDisassemble the existing water pump assembly and inspect the driveshaft, water tube, pump plate, and mating surfaces.\u003c\/li\u003e\n    \u003cli\u003eClean the mating surfaces and install the replacement housing and service components supplied for the application.\u003c\/li\u003e\n    \u003cli\u003eReassemble the water pump and lower unit using the manufacturer’s specified tightening sequence and torque values.\u003c\/li\u003e\n    \u003cli\u003eVerify that the driveshaft, shift shaft, and water tube are correctly aligned before securing the lower unit.\u003c\/li\u003e\n    \u003cli\u003eRun the engine with an appropriate flushing device and confirm a steady cooling-water telltale stream before normal operation.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\u003csummary\u003eHow do I know if this kit fits my engine?\u003c\/summary\u003e\u003cp\u003eCheck that your Mercury or Mariner engine is a listed 4-stroke application in the 40–115 HP range, then verify the exact model and serial number against the manufacturer’s parts information. Horsepower alone is not sufficient to confirm fitment.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eWhat are the signs of a worn water pump?\u003c\/summary\u003e\u003cp\u003eA weak or missing telltale stream, overheating warnings, or visible deterioration of the existing pump components can indicate that the water pump requires service. Diagnose the cooling system before replacing parts.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDoes this product include the water pump housing?\u003c\/summary\u003e\u003cp\u003eYes. The company product record identifies it as a 4-stroke water pump service kit with housing.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket service kit. The OEM numbers shown in the reference table are compatibility and identification references, not a statement that the supplied kit is manufactured by Mercury, Mariner, or Honda.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eDo the reference numbers guarantee interchangeability?\u003c\/summary\u003e\u003cp\u003eNo. Reference numbers can apply to different model, year, serial-number, or configuration ranges. Confirm the complete engine application and compare the original pump assembly before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eUse the exact model and serial number to confirm fitment before purchase.\u003c\/li\u003e\n    \u003cli\u003eDo not rely on horsepower alone when selecting a water pump service kit.\u003c\/li\u003e\n    \u003cli\u003eFollow the manufacturer’s service manual for lower-unit removal, installation, and torque specifications.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended if you are not familiar with outboard lower-unit or water-pump service.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003eMarine Parts Selection\u003c\/b\u003e — Replacement components for common outboard service requirements.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eApplication-Focused Listings\u003c\/b\u003e — Product descriptions are organized around engine model and part-reference information.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eService Support\u003c\/b\u003e — Verify your engine details and original component before ordering or installing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723965927739,"sku":"22KM027","price":97.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Mercury_40_to_250_HP_46-43024A7_46-8M0113799_-_JLM_MARINE-8290039.jpg?v=1763038613"},{"product_id":"lower-unit-seal-kit-fits-mercury-mariner-30-125-hp-replaces-26-43035a4","title":"Mercury Mariner Lower Unit Gearcase Seal Kit, 30–125 HP 2- and 4-Stroke, 3- and 4-Cylinder","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\u003elower unit gearcase seal kit\u003c\/strong\u003e is intended for Mercury and Mariner outboards rated from \u003cstrong\u003e30 to 125 HP\u003c\/strong\u003e with either 2-stroke or 4-stroke powerheads and 3- or 4-cylinder configurations. It is designed for lower unit and gearcase service where worn or damaged seals, gaskets, O-rings, and related sealing components need to be replaced.\u003c\/p\u003e\n  \u003cp\u003eThe kit is listed as an aftermarket replacement for the Mercury reference numbers \u003cstrong\u003e26-43035A1\u003c\/strong\u003e, \u003cstrong\u003e26-43035A2\u003c\/strong\u003e, \u003cstrong\u003e26-43035A3\u003c\/strong\u003e, \u003cstrong\u003e26-43035A4\u003c\/strong\u003e, and \u003cstrong\u003e26-43035A05\u003c\/strong\u003e. Confirm the complete engine model and serial-number range before ordering because lower-unit components can vary by gearcase design, gear ratio, and serial break.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eLower unit and gearcase seal kit for Mercury and Mariner outboards.\u003c\/li\u003e\n    \u003cli\u003eApplications covering 30–125 HP, 2-stroke and 4-stroke, 3- and 4-cylinder configurations.\u003c\/li\u003e\n    \u003cli\u003eSupports gearcase resealing during lower-unit repair or maintenance.\u003c\/li\u003e\n    \u003cli\u003eAftermarket replacement; not manufactured or branded by Mercury Marine.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThese references are provided for identification and cross-reference purposes. They do not replace verification against the exact engine model and serial number.\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\u003eBrand or Reference\u003c\/th\u003e\n          \u003cth\u003ePart 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\u003c\/td\u003e\n          \u003ctd\u003e26-43035A1\u003c\/td\u003e\n          \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e26-43035A2\u003c\/td\u003e\n          \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e26-43035A3\u003c\/td\u003e\n          \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e26-43035A4\u003c\/td\u003e\n          \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e26-43035A05\u003c\/td\u003e\n          \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-2626\u003c\/td\u003e\n          \u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eGLM\u003c\/td\u003e\n          \u003ctd\u003e87590\u003c\/td\u003e\n          \u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMallory\u003c\/td\u003e\n          \u003ctd\u003e9-74200\u003c\/td\u003e\n          \u003ctd\u003eAftermarket cross-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 and Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThe company fitment range for this product is Mercury and Mariner outboards rated \u003cstrong\u003e30–125 HP\u003c\/strong\u003e, covering both \u003cstrong\u003e2-stroke and 4-stroke\u003c\/strong\u003e engines with \u003cstrong\u003e3- or 4-cylinder\u003c\/strong\u003e configurations.\u003c\/p\u003e\n  \u003cp\u003eCatalog occurrences for the referenced gearcase seal application include selected Mercury 30 HP and 40 HP models, 4-stroke applications, Bigfoot gearcases, and gear housings with different serial-number breaks. These examples are not a complete fitment list. Always compare the engine model, horsepower, stroke, cylinder count, gearcase configuration, and serial number with the applicable service or parts catalog.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury and Mariner Compatibility Summary\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eCylinder Configuration\u003c\/th\u003e\n          \u003cth\u003eFitment Conditions\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\u003e30–125 HP\u003c\/td\u003e\n          \u003ctd\u003e2-stroke or 4-stroke\u003c\/td\u003e\n          \u003ctd\u003e3- or 4-cylinder\u003c\/td\u003e\n          \u003ctd\u003eVerify exact model, gearcase design, and serial-number range before purchase.\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 horsepower range alone does not confirm fitment. Do not use this listing for a specific engine unless the applicable serial-number and gearcase conditions match.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eLower unit and gearcase seal kit\u003c\/dd\u003e\n    \u003cdt\u003eCompatible Brands\u003c\/dt\u003e\n    \u003cdd\u003eMercury and Mariner\u003c\/dd\u003e\n    \u003cdt\u003eRated Horsepower Range\u003c\/dt\u003e\n    \u003cdd\u003e30–125 HP\u003c\/dd\u003e\n    \u003cdt\u003eEngine Stroke\u003c\/dt\u003e\n    \u003cdd\u003e2-stroke and 4-stroke applications\u003c\/dd\u003e\n    \u003cdt\u003eCylinder Configuration\u003c\/dt\u003e\n    \u003cdd\u003e3- and 4-cylinder applications\u003c\/dd\u003e\n    \u003cdt\u003eReplacement Type\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\u003eOne lower unit and gearcase seal kit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eIndividual seal, gasket, O-ring, and washer quantities can vary by application and kit configuration. Compare the kit contents with the parts diagram for your exact engine before installation.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eObtain the correct service manual for the exact outboard model and serial-number range.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the battery and place the engine in neutral before beginning work.\u003c\/li\u003e\n    \u003cli\u003eDrain the gearcase lubricant through the designated drain and vent openings and inspect it for water contamination or metal debris.\u003c\/li\u003e\n    \u003cli\u003eRemove the propeller and lower unit according to the manufacturer’s service procedure.\u003c\/li\u003e\n    \u003cli\u003eDisassemble the gearcase only as necessary to access the seals and gaskets being replaced.\u003c\/li\u003e\n    \u003cli\u003eClean mating surfaces and seal bores thoroughly. Do not damage machined surfaces during seal removal.\u003c\/li\u003e\n    \u003cli\u003eInstall each replacement seal, gasket, O-ring, and washer in the correct location and orientation. Use the lubricant or sealant specified by the service manual.\u003c\/li\u003e\n    \u003cli\u003eReassemble the gearcase and reinstall the lower unit using the manufacturer’s torque specifications.\u003c\/li\u003e\n    \u003cli\u003eRefill the gearcase with the recommended marine gear lubricant using the correct fill procedure.\u003c\/li\u003e\n    \u003cli\u003ePressure- or vacuum-test the gearcase when the service procedure requires it, then check for leaks before returning the engine to service.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this seal kit fits my outboard?\u003c\/summary\u003e\n    \u003cp\u003eConfirm that your engine is a Mercury or Mariner model in the 30–125 HP range with a 2-stroke or 4-stroke, 3- or 4-cylinder configuration. Then verify the exact model, gearcase design, and serial-number range against the applicable parts diagram. The reference numbers alone should not be used as the only fitment check.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common signs of lower-unit seal failure?\u003c\/summary\u003e\n    \u003cp\u003ePossible signs include milky or cloudy gear lubricant, water in the gearcase, lubricant leaking near the propeller shaft or driveshaft, or lubricant loss during operation. Inspect the gearcase before replacing parts because damage to shafts, bearing carriers, or sealing surfaces can also cause leaks.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan this kit be used for every Mercury or Mariner engine from 30 to 125 HP?\u003c\/summary\u003e\n    \u003cp\u003eNo. The stated horsepower range is a broad application range, not a guarantee for every model. Serial-number breaks, gearcase design, gear ratio, stroke, cylinder configuration, and regional model differences may affect fitment.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM Mercury component?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement seal kit that references the listed Mercury manufacturer part numbers for identification and application matching.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre special tools required?\u003c\/summary\u003e\n    \u003cp\u003eDepending on the gearcase, installation may require seal drivers, bearing or carrier removal tools, a torque wrench, and a pressure\/vacuum tester. Use the service manual for the exact engine and gearcase before starting work.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat lubricant should be used after installation?\u003c\/summary\u003e\n    \u003cp\u003eUse the marine gear lubricant specified for your exact outboard by the engine manufacturer. Follow the service manual for lubricant grade, fill quantity, and filling sequence.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the full engine model, stroke, cylinder configuration, gearcase type, and serial number before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not rely on horsepower or a single reference number to confirm fitment.\u003c\/li\u003e\n    \u003cli\u003eCompare the original components and applicable parts diagram before disassembly.\u003c\/li\u003e\n    \u003cli\u003eFollow the manufacturer’s service procedures, torque specifications, sealant requirements, and lubricant specifications.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for gearcase disassembly, sealing, and pressure testing.\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\u003eMarine replacement parts selected for practical repair and maintenance applications.\u003c\/li\u003e\n    \u003cli\u003eClear cross-reference information to help identify the correct replacement component.\u003c\/li\u003e\n    \u003cli\u003eSupport focused on accurate application matching and dependable service-part sourcing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723965993275,"sku":"23SK480","price":86.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Lower_Unit_Gearcase_Seal_Kit_for_Mercury_Mariner_Outboard_30-125_HP_Motor__26-43035A4_-_JLM_MARINE-8287879.webp?v=1763038616"}],"url":"https:\/\/seasierra.com\/collections\/mercury-2-stroke-30-125hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}