{"title":"Mercury 4-Stroke Outboard 30-125HP Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e5e5; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page supports Mercury 4‑Stroke Outboard 30–125HP engines and helps you find compatible parts and service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Mercury collection. Scroll to the bottom of this page to start browsing parts for these engines, 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; padding:10px 16px; background:#1a73e8; color:#fff; text-decoration:none; border-radius:4px;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\"\u003e\n  \u003ch2\u003eHow to Identify Your 30–125HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the serial\/nameplate: typically on the transom bracket or swivel bracket. Record the full serial number and any model code.\u003c\/li\u003e\n    \u003cli\u003eRead the model code: look for EFI 4‑Stroke designation, horsepower, and suffixes indicating shaft length (S\/L\/XL), tiller or remote controls, and starting\/charging options.\u003c\/li\u003e\n    \u003cli\u003eYear and region: Mercury parts lookup is serial‑based; year is inferred from the serial prefix. Always verify parts against your exact serial.\u003c\/li\u003e\n    \u003cli\u003ePlatform hints: 30–60HP models are commonly inline‑3 EFI 4‑strokes; 75–115HP are usually inline‑4 EFI 4‑strokes. Cowling shape and intake layout help distinguish platforms.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eInline‑3 EFI 4‑Stroke (30–60HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; max-width:900px; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInline‑3 EFI 4‑stroke outboards (commonly seen in 30, 40, 50, and 60HP variants)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e30 EFI, 40 EFI, 50 EFI, 60 EFI 4‑Stroke\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCompact and light, smooth idle, strong fuel economy, easy service access\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 cooling and gearcase parts overlap within this family; always confirm by serial for filters, ignition, and gasket changes.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eInline‑4 EFI 4‑Stroke (75–115HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; max-width:900px; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInline‑4 EFI 4‑stroke outboards (commonly 75, 90, and 115HP)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e75 EFI, 90 EFI, 115 EFI 4‑Stroke\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eBroader mid‑range torque, quiet operation, durable gearcases for heavier boats\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eOil filters and anodes often align within this family, but injectors, ECUs, and some cooling parts vary by serial. If your engine is labeled 125HP 4‑stroke, verify platform and parts via serial.\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\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for typical recreational use. Always follow the official Mercury service manual for your exact serial range and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; max-width:1000px; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:2px solid #ccc; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:2px solid #ccc; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:2px solid #ccc; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:2px solid #ccc; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEngine oil + filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eUse NMMA‑approved FC‑W oil; warm engine before draining for a complete change.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eChange sooner after water intrusion, heavy use, or long storage; inspect magnet for metal.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect 100 hours; replace 200–300 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGap to spec; replace sooner for hard starting, misfire, or fouling.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel filter \/ water‑separating filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace more often if using ethanol fuel or after contamination events.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 2 seasons (or 200–300 hours)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace sooner for weak telltale, overheating, or sandy\/silty use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnodes (corrosion protection)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eMatch anode material to water type (zinc for salt, aluminum for brackish, magnesium for fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\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\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service \u0026amp; Tune‑Up — \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eWater Pumps \u0026amp; Cooling — \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\u003eLower Unit 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\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\u003ePropellers \u0026amp; Performance — \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\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; max-width:1000px; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:2px solid #ccc; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:2px solid #ccc; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:2px solid #ccc; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWeak telltale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect intake screens, thermostat, and impeller condition; verify hose routing after service.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screens, gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck battery voltage and connections, spark plug condition\/gap, and fuel filter restriction.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSpark plugs, fuel filter, battery cables, primer bulb\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eVerify prop damage or incorrect pitch, inspect for water in fuel, and test compression if persistent.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePropeller, fuel filter\/water separator, fuel pump, ignition components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGearcase noise or metal on drain plug magnet\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck gear oil level\/condition; pressure test for seal leaks after impact or fishing‑line wrap.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eLower unit seal kit, gear lube, drain\/vent seals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCorrosion on trim tab, skeg, or brackets\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfirm correct anode material for water type and good bonding\/clean metal‑to‑metal contact.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnodes, hardware, anti‑corrosion spray\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\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 items (anodes, prop hardware, certain filters) may cross between models, but many components are serial‑specific. Always confirm against the engine’s serial to avoid fitment issues, especially across 30–60HP (inline‑3) and 75–115HP (inline‑4) families.\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 preventive measure, replace the water pump impeller about every two seasons (or 200–300 hours). Replace sooner if the telltale weakens, the engine overheats, or the motor is used in sandy or silty water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eChange the lower unit gear oil every 100 hours or annually. Inspect for water intrusion (milky oil) and metal on the magnet; if present, address seal issues or internal wear before further operation.\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\u003eProvide the full engine serial number, horsepower, approximate year, shaft length (S\/L\/XL), and control type (tiller or remote). Photos of the nameplate and the part you are replacing help ensure exact‑fit parts.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e5e5;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse the main Mercury collection to get started.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#1a73e8; color:#fff; text-decoration:none; border-radius:4px;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px; color:#555;\"\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-4-stroke-outboard-30-125hp-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}