{"title":"Yanmar 575HP 4-Stroke Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n  \u003cp style=\"max-width:900px;\"\u003e\n    This page supports Yanmar 4-Stroke 575HP outboard 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 Yanmar collection, and at the bottom of this page you’ll find a quick way to begin browsing parts for this engine. On the collection page, use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category\/section.\n  \u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar\" style=\"display:inline-block;padding:10px 16px;border:1px solid #0a5;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 575HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial label on the transom bracket or under the cowling. It lists the model designation, serial number, and sometimes a production date.\u003c\/li\u003e\n    \u003cli\u003eDecode the model: horsepower rating plus suffixes for shaft length (L=20”, XL=25”, XXL=30”), starting\/controls (e.g., electric start, power trim\/tilt), and other options. The serial number helps confirm exact build details.\u003c\/li\u003e\n    \u003cli\u003eConfirm it is a 4-stroke platform: look for the oil fill\/dipstick and external spin-on oil filter (locations vary by model). Emissions and engine family labels under the cowling can also help.\u003c\/li\u003e\n    \u003cli\u003eWhen in doubt, record the full model code and serial number from the plate and compare with your service manual or parts diagrams before ordering.\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  \u003ch3\u003eHigh‑Output 4‑Stroke Outboard\u003c\/h3\u003e\n  \u003ctable style=\"border-collapse:collapse;width:100%;max-width:900px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;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;\"\u003eModern 4-stroke outboard platform with electronic fuel delivery and engine management; exact cylinder layout varies by model family.\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;\"\u003e575HP 4-stroke outboard models (verify full model code and serial for parts compatibility).\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;\"\u003eStrong torque and top-end power, improved fuel efficiency relative to legacy platforms, smooth operation, and reduced emissions.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAlways match parts to the exact model code, serial range, and shaft length. Gearcase and rigging components can vary by application.\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 style=\"max-width:900px;\"\u003eIntervals below are general guidelines for heavy-duty 4‑stroke outboards. Always follow the official service manual for your exact model, operating profile, and environment.\u003c\/p\u003e\n  \u003ctable style=\"border-collapse:collapse;width:100%;max-width:900px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px 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;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eUse marine 4‑stroke oil of the correct viscosity; replace crush washer where applicable.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\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 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;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect magnetic drain plug; check for water intrusion. Replace seals if contamination is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar\"\u003eYanmar\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eIgnition plugs (gasoline) \/ glow plugs (diesel)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect 100 hrs; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eGap\/torque correctly (gasoline). For diesel, test glow plug resistance and replace if weak.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark plug\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eFuel filter(s) \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e100 hrs or annually; sooner if contaminated fuel\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eDrain water frequently; replace elements at interval or if restriction is noted.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\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 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;\"\u003e100–200 hrs or 1–2 seasons\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace more often with sandy\/silty use or weak telltale stream.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\"\u003eWater Pump Impeller Rebuild Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAnodes (internal \u0026amp; external)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect every 50–100 hrs; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eMatch alloy to water type (zinc\/brackish, aluminum\/salt, magnesium\/fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eBelts (alternator\/timing as applicable)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect 100 hrs; replace per manual\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCheck for cracks, glazing, and correct tension.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/belt\"\u003eBelt\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCharging system check\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eVerify output voltage and inspect wiring\/grounds; service battery as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/alternators\"\u003eAlternators\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 Kits — \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar-service-maintenance-kits\"\u003eYanmar Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System — \u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\"\u003eWater Pump Impeller Rebuild 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\u003eIgnition \/ Electrical — \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\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\u003eCorrosion Protection — \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion — \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\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=\"border-collapse:collapse;width:100%;max-width:900px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px 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 for debris, verify impeller condition, confirm thermostat operation, and check for blocked passages.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screen, anodes\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;\"\u003eTest battery\/grounds, verify fuel quality and primer bulb, replace\/inspect fuel filters, inspect spark plugs (gasoline) or glow plugs (diesel).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eFuel filters, spark plugs or glow plugs, electrical connections\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;\"\u003eCheck propeller for damage or wrong pitch, look for fuel restriction, and confirm proper engine tune.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller, fuel filter\/water separator, plugs\/injectors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eVerify correct oil level; look for milky oil (water intrusion); inspect seals and bearings; listen for whine under load.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eLower unit seal kit, bearings, gear oil\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCharging system not maintaining voltage\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCheck belt condition\/tension (if applicable), inspect rectifier\/regulator and alternator connections, load test battery.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAlternator, rectifier\/regulator, belts, battery cables\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\u003eSome service items interchange across years, but high‑output outboards often have platform‑specific components (gearcase, rigging, electrical). Always confirm by model code, serial range, and shaft length before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the water pump impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs a rule of thumb, replace every 100–200 hours or at least every 1–2 seasons. In sandy or silty environments, or if the telltale weakens, replace sooner.\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 every 100 hours or annually, and any time you find water contamination or metal on the magnetic drain plug. Inspect seals if contamination is present.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003ePlease provide the full model designation, serial number, shaft length (L\/XL\/XXL), control type, and a clear photo of the nameplate. Photos of the existing part also help speed verification.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px 0;\"\u003e\n  \u003cp style=\"max-width:900px;\"\u003eReady to find parts by horsepower, year, and model? Browse the main Yanmar collection and use Filter \u0026amp; Sort to narrow down to what you need.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yanmar\" style=\"display:inline-block;padding:10px 16px;border:1px solid #0a5;border-radius:6px;text-decoration:none;\"\u003eShop Yanmar Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;color:#444;\"\u003eIf you’re unsure about your model, send us a clear 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":"impeller-repair-kit-fits-johnson-jabsco-indmar-yanmar-replaces-09-812b-1-17935-0001-p","title":"Impeller Repair Kit for Johnson Pump Applications – Replaces 09-812B-1","description":"\u003csection\u003e\n\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 aftermarket \u003cstrong\u003eimpeller repair kit\u003c\/strong\u003e is intended for selected raw-water pump applications using the Johnson Pump reference \u003cstrong\u003e09-812B-1\u003c\/strong\u003e. It is supplied as a service kit for replacing a worn or damaged marine engine cooling-system impeller.\u003c\/p\u003e\n\u003cp\u003eFitment depends on the exact pump, housing, shaft configuration, and engine application. Confirm the part number and the physical design of your existing impeller before ordering. The reference number is associated with Johnson Pump applications in the available catalog material; it should not be treated as universal fitment for every Johnson, Jabsco, Indmar, Yanmar, Volvo, or boat model.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket replacement for selected raw-water pump impeller applications.\u003c\/li\u003e\n  \u003cli\u003eDesigned for routine cooling-system service when the pump and impeller specifications match.\u003c\/li\u003e\n  \u003cli\u003eKit format includes the impeller and the listed sealing components.\u003c\/li\u003e\n  \u003cli\u003eVerify dimensions, spline or shaft connection, blade count, and cover-plate seal before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number References\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are reference leads supplied with this listing. Cross-reference them against the number stamped or listed for your pump; number co-occurrence alone does not confirm fitment.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eBrand or Source\u003c\/th\u003e\n\u003cth\u003eReference Number\u003c\/th\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson Pump\u003c\/td\u003e\n\u003ctd\u003e09-812B-1\u003c\/td\u003e\n\u003ctd\u003ePrimary replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson Pump\u003c\/td\u003e\n\u003ctd\u003e09-812B\u003c\/td\u003e\n\u003ctd\u003eRelated reference shown for identification\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJabsco\u003c\/td\u003e\n\u003ctd\u003e17935-0001-P\u003c\/td\u003e\n\u003ctd\u003eListing cross-reference; verify before purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3306\u003c\/td\u003e\n\u003ctd\u003eListing cross-reference; verify before purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eIndmar\u003c\/td\u003e\n\u003ctd\u003eS685007 \/ 685007\u003c\/td\u003e\n\u003ctd\u003eListing cross-reference; verify pump configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYanmar\u003c\/td\u003e\n\u003ctd\u003e119773-42600 \/ 119773-42600-01\u003c\/td\u003e\n\u003ctd\u003eListing cross-reference; verify application\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePleasurecraft\u003c\/td\u003e\n\u003ctd\u003eRP061018\u003c\/td\u003e\n\u003ctd\u003eListing cross-reference; verify application\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-45704\u003c\/td\u003e\n\u003ctd\u003eListing cross-reference; verify application\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6TA-12457-00\u003c\/td\u003e\n\u003ctd\u003eListing cross-reference; verify application\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eApplication and Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis kit is for selected marine raw-water pump applications rather than all engines sold under the brands listed below. The available catalog evidence identifies Johnson Pump 09-812B-1 in connection with a Volvo cooling-system application, including Volvo applications described as 1998 and earlier. This information is a catalog lead and must be checked against the complete pump and engine identification.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Application and Compatibility Guidance\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003cth\u003eCompatibility Guidance\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson Pump\u003c\/td\u003e\n\u003ctd\u003e09-812B-1 \/ 09-812B\u003c\/td\u003e\n\u003ctd\u003eConfirm the pump model, housing, shaft, and impeller dimensions.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVolvo cooling-system applications\u003c\/td\u003e\n\u003ctd\u003eCatalog association with Johnson Pump 09-812B-1\u003c\/td\u003e\n\u003ctd\u003eCatalog text identifies Volvo applications described as 1998 and earlier; verify the exact engine and pump assembly.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJabsco, Indmar, Yanmar, Pleasurecraft, Mallory, and Yamaha applications\u003c\/td\u003e\n\u003ctd\u003eSee reference table\u003c\/td\u003e\n\u003ctd\u003eUse the listed numbers only as cross-reference leads. Do not rely on brand or boat model alone.\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\u003eRaw-water pump impeller repair kit\u003c\/dd\u003e\n  \u003cdt\u003eProduct Construction\u003c\/dt\u003e\n  \u003cdd\u003eNeoprene impeller with metal insert, as described for this listing\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eReplacement service part for a matching pump assembly\u003c\/dd\u003e\n  \u003cdt\u003eFitment Basis\u003c\/dt\u003e\n  \u003cdd\u003ePart-number and physical-dimension comparison required\u003c\/dd\u003e\n  \u003cdt\u003ePrimary Reference\u003c\/dt\u003e\n  \u003cdd\u003eJohnson Pump 09-812B-1\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cp\u003eExact dimensions, blade count, spline configuration, shaft size, and seal profile should be compared with the original part and pump manufacturer information before installation. Do not assume that a similar-looking impeller is interchangeable.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Replacement impeller\u003c\/li\u003e\n  \u003cli\u003e1 x O-ring\u003c\/li\u003e\n  \u003cli\u003e1 x Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackage contents are based on the kit configuration described for this listing. Inspect the received parts before disassembly and confirm that the included seal matches your pump cover.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eSwitch off the engine, disconnect the battery where appropriate, and prevent accidental starting.\u003c\/li\u003e\n  \u003cli\u003eClose the raw-water intake seacock before opening the pump.\u003c\/li\u003e\n  \u003cli\u003ePlace an absorbent pad below the pump to catch residual water.\u003c\/li\u003e\n  \u003cli\u003eRemove the pump-cover fasteners and carefully remove the cover plate.\u003c\/li\u003e\n  \u003cli\u003eNote the original impeller blade orientation and remove the old impeller with suitable pliers or an impeller puller.\u003c\/li\u003e\n  \u003cli\u003eClean the pump cavity and remove any broken blade fragments or debris.\u003c\/li\u003e\n  \u003cli\u003eLightly lubricate the replacement impeller with a lubricant approved for the pump and cooling-system application.\u003c\/li\u003e\n  \u003cli\u003eInstall the impeller in the correct rotational orientation for the pump.\u003c\/li\u003e\n  \u003cli\u003eFit the new gasket or O-ring supplied for the matching cover design.\u003c\/li\u003e\n  \u003cli\u003eReinstall the cover evenly and tighten the fasteners to the pump manufacturer's specification.\u003c\/li\u003e\n  \u003cli\u003eOpen the seacock, reconnect the battery if disconnected, and check for leaks and proper cooling-water flow after starting.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this kit fits my engine?\u003c\/summary\u003e\u003cp\u003eStart by matching your existing pump or impeller number to the reference table. Then compare the impeller diameter, width, blade count, shaft or spline connection, insert, and cover seal. Engine brand and boat model alone are not sufficient to confirm fitment.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are common signs of a worn impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include reduced cooling-water flow, engine overheating, damaged or missing blades, cracking, hardening, or pieces of impeller material found in the cooling passages. Other cooling-system faults can cause similar symptoms, so inspect the complete system.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should a raw-water impeller be replaced?\u003c\/summary\u003e\u003cp\u003eInspect the impeller according to the engine or pump manufacturer's maintenance schedule. Service intervals vary with operating hours, storage conditions, and exposure to saltwater, sand, or debris. Replace it sooner if it shows cracking, distortion, hardening, or missing blades.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan this kit correct an overheating engine?\u003c\/summary\u003e\u003cp\u003eA damaged raw-water impeller can contribute to overheating, but overheating may also result from a blocked intake, damaged pump housing, thermostat problems, restricted passages, or other faults. Diagnose the complete cooling system before returning the engine to service.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement kit. The listed manufacturer and reference numbers are provided for identification and cross-reference only.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs professional installation recommended?\u003c\/summary\u003e\u003cp\u003eImpeller replacement is a routine service operation for experienced boat owners, but access and pump design vary. Use the manufacturer's service procedure and seek professional assistance if the pump configuration, installation direction, or seal arrangement is uncertain.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the exact pump and impeller application before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not operate the engine with the raw-water seacock closed.\u003c\/li\u003e\n  \u003cli\u003eInspect the pump housing, cover plate, wear surfaces, and cooling passages whenever an impeller fails.\u003c\/li\u003e\n  \u003cli\u003eDo not install the part if the dimensions, shaft connection, blade design, or seal profile differs from the original.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\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 — Service components for routine boat and engine maintenance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listing\u003c\/strong\u003e — Reference numbers and compatibility guidance are provided to support careful part comparison.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment First\u003c\/strong\u003e — Always compare the original part and pump specifications before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723966845243,"sku":"OA-OV3D-KDGW","price":28.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/OA-OV3D-KDGW.png?v=1763038651"}],"url":"https:\/\/seasierra.com\/collections\/yanmar-575hp-4-stroke-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}