{"title":"Yanmar 4-Stroke 15-30HP Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eThis page is dedicated to Yanmar 4‑Stroke 15–30 HP marine diesel engines. Use it to find compatible parts and service information for popular YM‑series models, with maintenance tips, common replacement parts, and quick troubleshooting guidance. You can also browse the main Yanmar collection. Scroll to the bottom of the page to start browsing parts for this engine, and remember you can use the collection’s Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar\" style=\"display:inline-block;padding:10px 14px;border:1px solid #0a4;border-radius:6px;text-decoration:none;\"\u003eBrowse All Yanmar Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 15–30 HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate locations: the engine model\/serial plate is on the rocker arm (valve) cover; the marine gear or saildrive has its own identification plate. Record both.\u003c\/li\u003e\n    \u003cli\u003eModel codes: common engines in this range are 2YM15, 3YM20, and 3YM30. Drive options include KM2P‑1 marine gear or SD20 saildrive. Suffixes may indicate gearing or configuration.\u003c\/li\u003e\n    \u003cli\u003eVisual cues: 2YM15 is a 2‑cylinder; 3YM20\/3YM30 are 3‑cylinders. All are fresh‑water cooled via heat exchanger with raw‑water (seawater) pump and flexible mounts.\u003c\/li\u003e\n    \u003cli\u003eControls: YM engines use a single‑lever remote control for shift and throttle; ensure NEUTRAL interlock is present when starting.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eYanmar 2YM15\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:920px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e2‑cylinder, vertical water‑cooled 4‑stroke diesel; swirl pre‑combustion chamber; heat‑exchanger cooled; raw‑water impeller pump\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCommon Models\u003c\/td\u003e\n\u003ctd\u003e2YM15 with KM2P‑1 marine gear or SD20 saildrive\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAdvantages\u003c\/td\u003e\n\u003ctd\u003eCompact footprint, simple service access, low fuel consumption\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003ctd\u003eObserve initial 50‑hour oil changes; confirm belt tension and raw‑water flow after launch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eYanmar 3YM20\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:920px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e3‑cylinder, vertical water‑cooled 4‑stroke diesel; swirl pre‑combustion; heat‑exchanger cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCommon Models\u003c\/td\u003e\n\u003ctd\u003e3YM20 with KM2P‑1 marine gear or SD20 saildrive\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAdvantages\u003c\/td\u003e\n\u003ctd\u003eSmooth running, reliable charging output, good mid‑range torque\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003ctd\u003eService intervals similar to 2YM15; drain\/separate water from fuel regularly\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eYanmar 3YM30\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:920px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e3‑cylinder, vertical water‑cooled 4‑stroke diesel; swirl pre‑combustion; heat‑exchanger cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCommon Models\u003c\/td\u003e\n\u003ctd\u003e3YM30 with KM2P‑1 marine gear or SD20 saildrive\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAdvantages\u003c\/td\u003e\n\u003ctd\u003eHigher output in the 30‑HP class, well‑suited to auxiliary sailboats\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003ctd\u003eWatch seawater discharge volume; clean strainer and check impeller if flow decreases\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are typical guidelines for YM‑series engines. Always follow your specific Yanmar service manual and local operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;max-width:980px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eEngine oil (diesel)\u003c\/td\u003e\n        \u003ctd\u003eInitial 50 hrs; then ~150 hrs or annually\u003c\/td\u003e\n        \u003ctd\u003eChange more often for heavy use; use correct API\/viscosity for climate\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-service-maintenance-kits\"\u003eYanmar Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOil filter\u003c\/td\u003e\n        \u003ctd\u003eInitial 50 hrs; then ~250 hrs\u003c\/td\u003e\n        \u003ctd\u003eReplace with each second oil change unless manual specifies otherwise\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-oil-filters\"\u003eYanmar Oil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eFuel filter (engine)\u003c\/td\u003e\n        \u003ctd\u003e~250 hrs or annually\u003c\/td\u003e\n        \u003ctd\u003eDrain any water; replace sooner if contamination is suspected\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-fuel-filters\"\u003eYanmar Fuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eFuel\/water separator (pre‑filter, if equipped)\u003c\/td\u003e\n        \u003ctd\u003eInspect\/drain ~50 hrs; element as needed\u003c\/td\u003e\n        \u003ctd\u003eBleed air after service; keep spare element and O‑rings aboard\u003c\/td\u003e\n        \u003ctd\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\u003eRaw‑water pump impeller\u003c\/td\u003e\n        \u003ctd\u003eInspect each season; replace ~1000 hrs or 4 years (or sooner if flow weak)\u003c\/td\u003e\n        \u003ctd\u003eCarry a spare; replace cover gasket\/O‑ring when serviced\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/impellers\"\u003eImpellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAnodes (heat exchanger\/drive)\u003c\/td\u003e\n        \u003ctd\u003eInspect 100 hrs\/seasonally; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd\u003eCheck bonding and zinc\/aluminum type based on water chemistry\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAlternator\/drive belt\u003c\/td\u003e\n        \u003ctd\u003eCheck tension 50 hrs; replace ~1000 hrs or 4 years\u003c\/td\u003e\n        \u003ctd\u003eAdjust to spec; avoid belt glaze\/slip\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/belt\"\u003eBelts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAir intake silencer\/element\u003c\/td\u003e\n        \u003ctd\u003eClean ~250 hrs; replace as needed\u003c\/td\u003e\n        \u003ctd\u003eKeep intake free of debris for best combustion\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-air-filters\"\u003eYanmar Air Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMarine gear (KM2P‑1) oil\u003c\/td\u003e\n        \u003ctd\u003eInitial 50 hrs; then ~150 hrs or annually\u003c\/td\u003e\n        \u003ctd\u003eUse specified gear oil; check level often\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar\"\u003eYanmar Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSaildrive (SD20) gear oil\u003c\/td\u003e\n        \u003ctd\u003eInitial 50 hrs; then ~100 hrs\u003c\/td\u003e\n        \u003ctd\u003eInspect for water ingress; replace seals as needed\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar\"\u003eYanmar Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eThermostat \u0026amp; cooling hoses\u003c\/td\u003e\n        \u003ctd\u003eInspect each season\u003c\/td\u003e\n        \u003ctd\u003eOverheating often traces to flow restriction or failed thermostat\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/hoses\"\u003eHoses\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-service-maintenance-kits\"\u003eYanmar Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-fuel-filters\"\u003eYanmar Fuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/impellers\"\u003eImpellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eExhaust \u0026amp; Elbows: \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-elbows\"\u003eYanmar Elbows\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGaskets \u0026amp; Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-gaskets\"\u003eYanmar Gaskets\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eElectrical \u0026amp; Starting: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;max-width:980px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWeak water stream or overheat alarm\u003c\/td\u003e\n        \u003ctd\u003eOpen seacock; clean intake strainer; inspect\/replace raw‑water impeller; confirm belt tension\u003c\/td\u003e\n        \u003ctd\u003eWater pump impeller kit, cover gasket\/O‑ring, thermostat, hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd\u003eDrain water from separator; replace fuel filter; verify clean air intake; check propeller load\/fouling\u003c\/td\u003e\n        \u003ctd\u003eFuel filter, pre‑filter\/separator element, air filter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHard starting or rough idle (cold)\u003c\/td\u003e\n        \u003ctd\u003eBattery state of charge; pre‑heat (glow) procedure; fuel quality\/air in lines; valve lash due interval\u003c\/td\u003e\n        \u003ctd\u003eBattery\/electrical items, fuel filter, bleed fittings, valve cover gasket (for adjustment)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eBlack smoke under load\u003c\/td\u003e\n        \u003ctd\u003eAir restriction or prop over‑pitched\/dirty hull; injector service interval; check for overloading\u003c\/td\u003e\n        \u003ctd\u003eAir filter, gaskets, injector service parts\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGear noise or metal in drive oil\u003c\/td\u003e\n        \u003ctd\u003eChange gear oil; inspect seals for water ingress; verify alignment and shift cable adjustment\u003c\/td\u003e\n        \u003ctd\u003eGear oil, seals, bearings (marine gear\/saildrive)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:16px 0;\"\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\u003eMany service items (filters, belts, impellers) are shared across YM models, but compatibility can change with drive type (KM2P‑1 vs SD20) and year updates. Confirm your engine model, serial number, and drive model before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the raw‑water impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eInspect every season and replace at signs of wear or weak flow. Yanmar guidance is typically around 1000 hours or every four years, whichever comes first; many sailors replace more frequently based on usage and water quality.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eFor KM2P‑1 marine gear: initial 50 hours, then about every 150 hours or annually. For SD20 saildrive: initial 50 hours, then about every 100 hours. Always verify the correct oil specification for your drive.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003ePlease provide the engine model and serial number (e.g., 2YM15, 3YM20, 3YM30), the drive model (KM2P‑1 or SD20), boat year, and any existing part numbers. Photos of the nameplate and the part you’re replacing are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px 0;\"\u003e\n  \u003cp\u003eReady to find the right parts for your Yanmar 4‑Stroke 15–30 HP engine? Browse the main collection and use Filter \u0026amp; Sort to refine by horsepower, year, and category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar\" style=\"display:inline-block;margin-top:6px;padding:10px 14px;border:1px solid #0a4;border-radius:6px;text-decoration:none;\"\u003eShop Yanmar Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;font-size:0.95em;color:#444;\"\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":"sea-water-pump-fits-yanmar-2gm20-3gm30-series-replaces-128377-42500-128397-42500","title":"Sea Water Pump for Yanmar 2GMF, 3GMF, 2YM \u0026 3YM Engines – Replaces 128397-42500, 128990-42500, 128397-42501 \u0026 128377-42500","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\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\n  \/* Small screen optimization *\/\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\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eSea Water Pump\u003c\/strong\u003e, also called a raw water pump, is intended for the seawater cooling systems used on selected Yanmar marine diesel engines. It is listed for Yanmar 2GMF, 3GMF, 2YM and 3YM high-speed engine applications.\u003c\/p\u003e\n\u003cp\u003eThe pump is identified as an aftermarket replacement associated with JMP part number JPR-YM08IH and is also listed with SPX Flow Johnson Pumps references F4B-903, 10-24509-01 and 10-13337-01. Yanmar reference numbers listed for this pump include 128397-42500, 128990-42500, 128397-42501 and 128377-42500.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement sea water pump for selected Yanmar marine diesel engines.\u003c\/li\u003e\n  \u003cli\u003eDesigned for raw-water circulation in the engine cooling system.\u003c\/li\u003e\n  \u003cli\u003eSold as one pump assembly; this listing does not specify an included impeller or separate installation kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following manufacturer and aftermarket references to compare the pump with your existing part before ordering. Part-number listings should be confirmed against the engine model and the original pump.\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 source\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\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e128397-42500\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e128990-42500\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e128397-42501\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e128377-42500\u003c\/td\u003e\n        \u003ctd\u003eOEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJMP\u003c\/td\u003e\n        \u003ctd\u003eJPR-YM08IH\u003c\/td\u003e\n        \u003ctd\u003eAftermarket reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSPX Flow Johnson Pumps\u003c\/td\u003e\n        \u003ctd\u003eF4B-903\u003c\/td\u003e\n        \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSPX Flow Johnson Pumps\u003c\/td\u003e\n        \u003ctd\u003e10-24509-01\u003c\/td\u003e\n        \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSPX Flow Johnson Pumps\u003c\/td\u003e\n        \u003ctd\u003e10-13337-01\u003c\/td\u003e\n        \u003ctd\u003eManufacturer reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe company catalog identifies this pump for the following Yanmar high-speed engine applications. Verify the complete engine model and the pump mounting pattern against your original part before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eEngine model\u003c\/th\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM references\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e2GMF\u003c\/td\u003e\n        \u003ctd\u003eSea raw water pump\u003c\/td\u003e\n        \u003ctd\u003eNot specified\u003c\/td\u003e\n        \u003ctd\u003e128397-42500, 128990-42500, 128397-42501, 128377-42500\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e3GMF\u003c\/td\u003e\n        \u003ctd\u003eSea raw water pump\u003c\/td\u003e\n        \u003ctd\u003eNot specified\u003c\/td\u003e\n        \u003ctd\u003e128397-42500, 128990-42500, 128397-42501, 128377-42500\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e2YM\u003c\/td\u003e\n        \u003ctd\u003eSea raw water pump\u003c\/td\u003e\n        \u003ctd\u003eNot specified\u003c\/td\u003e\n        \u003ctd\u003e128397-42500, 128990-42500, 128397-42501, 128377-42500\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e3YM\u003c\/td\u003e\n        \u003ctd\u003eSea raw water pump\u003c\/td\u003e\n        \u003ctd\u003eNot specified\u003c\/td\u003e\n        \u003ctd\u003e128397-42500, 128990-42500, 128397-42501, 128377-42500\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct type\u003c\/dt\u003e\n  \u003cdd\u003eSea water pump \/ raw water pump\u003c\/dd\u003e\n  \u003cdt\u003eProduct configuration\u003c\/dt\u003e\n  \u003cdd\u003eSingle pump assembly, not specified as a kit\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eMarine diesel engine seawater cooling system\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket reference\u003c\/dt\u003e\n  \u003cdd\u003eJPR-YM08IH\u003c\/dd\u003e\n  \u003cdt\u003eManufacturer references\u003c\/dt\u003e\n  \u003cdd\u003eF4B-903, 10-24509-01 and 10-13337-01\u003c\/dd\u003e\n  \u003cdt\u003eIncluded impeller\u003c\/dt\u003e\n  \u003cdd\u003eNot specified; inspect the product received and confirm the contents before installation\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Sea Water Pump assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn impeller, key, gasket, bracket or other separate installation parts are not specified as included in the company product record. Confirm the package contents before beginning installation.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eClose the raw-water seacock and allow the engine to cool completely.\u003c\/li\u003e\n  \u003cli\u003ePlace a container below the pump to catch residual water.\u003c\/li\u003e\n  \u003cli\u003eLabel and remove the inlet and outlet hoses, then inspect the hoses and clamps for wear.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting fasteners securing the pump to the engine.\u003c\/li\u003e\n  \u003cli\u003eRemove the old pump and clean the mounting surface.\u003c\/li\u003e\n  \u003cli\u003eCompare the replacement pump with the original pump, including the mounting points, shaft orientation and hose connections.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement pump with the correct seal or gasket for the application. Do not reuse damaged sealing components.\u003c\/li\u003e\n  \u003cli\u003eTighten the mounting fasteners according to the engine manufacturer's specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect the hoses and secure the clamps.\u003c\/li\u003e\n  \u003cli\u003eOpen the raw-water seacock before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and immediately check for leaks and visible raw-water discharge. Stop the engine if the pump does not prime or if leakage occurs.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm that this pump fits my Yanmar engine?\u003c\/summary\u003e\n  \u003cp\u003eConfirm that your engine is one of the listed Yanmar models: 2GMF, 3GMF, 2YM or 3YM. Also compare the original pump, mounting arrangement, hose connections and one or more of the listed reference numbers before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this pump fit 2GM20 or 3GM30 engines?\u003c\/summary\u003e\n  \u003cp\u003eThe company record for this product identifies 2GMF, 3GMF, 2YM and 3YM applications. It does not specifically confirm 2GM20, 2GM20C, 3GM30 or 3GM30C fitment, so those models should not be treated as confirmed applications from this listing alone.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs an impeller included?\u003c\/summary\u003e\n  \u003cp\u003eThe company record identifies this product as a single sea water pump and does not state that an impeller is included. Do not assume that an impeller, key or gasket is supplied; verify the package contents before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a failing sea water pump?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms can include reduced raw-water flow, engine overheating, visible leakage around the pump or weep area, abnormal noise and impeller damage. Inspect the complete raw-water circuit before replacing the pump.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the impeller be replaced?\u003c\/summary\u003e\n  \u003cp\u003eInspect and service the impeller according to the engine manufacturer's maintenance schedule. Replace it sooner if it is cracked, hardened, damaged or missing vanes, and verify that the pump is properly primed after service.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM pump?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is for an aftermarket replacement pump, not a Yanmar-branded OEM component. The listed Yanmar and pump-manufacturer numbers are reference numbers used to help compare the application.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I check before ordering?\u003c\/summary\u003e\n  \u003cp\u003eConfirm the complete engine model, compare the original pump and mounting arrangement, and check the reference numbers. If the original part differs in mounting, shaft or connection details, contact the seller before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eClose the raw-water seacock before removing the pump and reopen it before operating the engine.\u003c\/li\u003e\n  \u003cli\u003eNever operate the engine without confirming that the raw-water system is open, connected and supplying water.\u003c\/li\u003e\n  \u003cli\u003eVerify the engine model, original pump and reference numbers before purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not a Yanmar OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when the pump, cooling system or engine fitment is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine replacement parts\u003c\/strong\u003e — Practical replacement components for marine cooling and engine systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-focused listings\u003c\/strong\u003e — Product references and engine applications are provided to help you compare the replacement with your original part.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport before installation\u003c\/strong\u003e — Contact support if you need help comparing the engine model, pump references or package contents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723784458555,"sku":"22FIP002","price":154.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/128377-42500_Sea_Water_Pump_for_Yanmar_Johnson_Pump_2GM20-YEU_2GM20C-YEU_3GM30-YEU_3GM30C-YEU________128377-42500_-_JLM_MARINE-8287273.jpg?v=1763031713"},{"product_id":"air-filter-element-fits-yanmar-2gm-3gm-2ym-3ym-series-replaces-128270-12540-18-57703","title":"Aftermarket Air Filter Element for Yanmar 2GM, 3GM30, 3YM20 \u0026 3YM30 Engines – Replaces 128270-12540, Sierra 18-57703","description":"\u003csection\u003e\n\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\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eaftermarket air filter element\u003c\/strong\u003e is designed for selected Yanmar Marine Inboard engines, including the 2GM, 2GM20F, 3GM30, 3YM20 and 3YM30 applications listed below. It replaces Yanmar OEM part number \u003cstrong\u003e128270-12540\u003c\/strong\u003e and is also cross-referenced to Sierra \u003cstrong\u003e18-57703\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eUse the exact engine designation and replacement part number to confirm compatibility before ordering. Model suffixes and application conditions must match the fitment information for your engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement air filter element for selected Yanmar marine diesel engines.\u003c\/li\u003e\n\u003cli\u003eDesigned as a direct replacement for the specified original air filter application.\u003c\/li\u003e\n\u003cli\u003eSold as one air filter element.\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 air filter application.\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\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e128270-12540\u003c\/td\u003e\n        \u003ctd\u003eOEM replacement reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-57703\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\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eCompatibility is limited to the Yanmar applications listed below. Confirm the complete model designation and compare the part number on your existing filter or engine documentation 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 Model or Application\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e2GM, LP, SZK\u003c\/td\u003e\n        \u003ctd\u003e128270-12540\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e2GM20F, F-YEU, -YEU\u003c\/td\u003e\n        \u003ctd\u003e128270-12540\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e3GM30, F, F-YEU\u003c\/td\u003e\n        \u003ctd\u003e128270-12540\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e3YM20\u003c\/td\u003e\n        \u003ctd\u003e128270-12540\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYanmar\u003c\/td\u003e\n        \u003ctd\u003e3YM30, AE\u003c\/td\u003e\n        \u003ctd\u003e128270-12540\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\u003eAir filter element\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Yanmar Marine Inboard engines\u003c\/dd\u003e\n  \u003cdt\u003eOEM Replacement Reference\u003c\/dt\u003e\n  \u003cdd\u003eYanmar 128270-12540\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket Cross-Reference\u003c\/dt\u003e\n  \u003cdd\u003eSierra 18-57703\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement air filter element for the specified application\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x aftermarket air filter element\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eTurn the engine off and allow it to cool before beginning work.\u003c\/li\u003e\n  \u003cli\u003eLocate the engine air filter housing and remove the cover according to the engine service instructions.\u003c\/li\u003e\n  \u003cli\u003eRemove the existing air filter element and note its orientation.\u003c\/li\u003e\n  \u003cli\u003eClean loose dust and debris from the housing without allowing contaminants to enter the intake.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement element in the same orientation, making sure it is fully seated.\u003c\/li\u003e\n  \u003cli\u003eReinstall and secure the housing cover before operating the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich engines does this air filter fit?\u003c\/summary\u003e\u003cp\u003eThis element is listed for selected Yanmar applications: 2GM, LP and SZK; 2GM20F, F-YEU and -YEU; 3GM30, F and F-YEU; 3YM20; and 3YM30, AE. Confirm the complete model designation and OEM reference before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat part number does this element replace?\u003c\/summary\u003e\u003cp\u003eThis aftermarket element replaces Yanmar OEM part number 128270-12540. Sierra 18-57703 is the associated aftermarket cross-reference.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM Yanmar part?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for an aftermarket replacement air filter element. Yanmar 128270-12540 is provided as the OEM replacement reference.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow can I confirm compatibility?\u003c\/summary\u003e\u003cp\u003eCompare your engine’s complete model and suffix with the compatibility table, then verify that your existing filter or service documentation identifies Yanmar 128270-12540. Do not rely on the engine family name alone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should the air filter be replaced?\u003c\/summary\u003e\u003cp\u003eInspect and replace the element according to the maintenance schedule for your engine. Replace it sooner if it is damaged or excessively contaminated. Follow the instructions in the applicable Yanmar service manual.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the complete engine model, suffix and replacement part number before purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM Yanmar component.\u003c\/li\u003e\n  \u003cli\u003eInstall the element securely and ensure the air filter housing is properly closed before operating the engine.\u003c\/li\u003e\n  \u003cli\u003eIf your original element or application differs from the information shown, confirm fitment with the engine manufacturer’s service documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Replacement components for marine engine maintenance and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product references and fitment information are provided to help match the correct replacement part.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport When Needed\u003c\/strong\u003e — Contact customer support if you need help comparing the listed application with your engine documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723786064187,"sku":"22AF001","price":19.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Air_Filter_for_Yanmar_2GM_3GM_2YM_3YM___128270-12540_-_JLM_MARINE-8286808.jpg?v=1763031714"}],"url":"https:\/\/seasierra.com\/collections\/yanmar-4-stroke-15-30hp-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}