{"title":"PCM 300HP 4-Stroke Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003e\n    This page is for PCM 4‑Stroke 300 HP outboard engines. Use it to find compatible parts and helpful service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main PCM collection, and at the bottom of this page you can start browsing parts for this engine. On the collection pages, use the “Filter \u0026amp; Sort” controls to narrow by horsepower, year range, and part category\/section.\n  \u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block; padding:10px 14px; background:#0d6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All PCM 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 300 HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial plate on the outboard’s transom bracket or swivel bracket (often starboard side). Record model code, serial number, and production date.\u003c\/li\u003e\n    \u003cli\u003eRead the model code: it typically encodes horsepower (300), shaft length (L\/XL\/XXL), control type (mechanical vs. digital), and a year\/market suffix.\u003c\/li\u003e\n    \u003cli\u003eConfirm it’s a 4‑stroke: look for an engine oil fill\/dipstick and EFI components; 4‑strokes have a dedicated crankcase oil system (unlike 2‑strokes).\u003c\/li\u003e\n    \u003cli\u003eNote platform cues: some 300 HP 4‑strokes are V6 while others may be V8; cowling design, intake layout, and sound can help differentiate.\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\u003eV6 EFI 4‑Stroke (common 300 HP layout)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eV6, EFI 4‑stroke, DOHC with electronic fuel injection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eTypical 300 HP EFI 4‑stroke outboard models from major manufacturers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eStrong mid‑range torque, comparatively light weight, good fuel economy for class\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eMatch parts by full model\/serial; lower unit, anodes, and water pump kits can vary by shaft length and gearcase generation.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV8 EFI 4‑Stroke (select platforms)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin-top:12px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eV8, EFI 4‑stroke, high displacement for increased low‑end thrust\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSelect 300 HP 4‑stroke V8 outboards (varies by year\/brand)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eExcellent holeshot and heavy‑load capability; broad torque curve\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSome service parts differ from V6 versions (filters, anodes, belt routing); verify by model code and 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\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for 4‑stroke outboards. Always follow the official service manual for your exact model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEngine oil \u0026amp; filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse NMMA FC‑W oil; warm engine first for a complete drain; replace drain\/fill gaskets as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect for water intrusion or metal; replace drain\/vent screw seals each service.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/lower-unit-seal-kits\"\u003eLower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e100–200 hrs (inspect at 100 hrs)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck gap and color; replace sooner with rough idle\/misfire.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eReplace both under‑cowl and external filters; drain water separators regularly.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003eWater pump impeller \u0026amp; wear parts\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 200 hrs or 2 years\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eService more often in sandy or silty water; confirm gearcase style before ordering.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\"\u003eWater Pump Impeller Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnodes (zinc\/aluminum\/magnesium)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect every 50 hrs; replace when 50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eChoose alloy for your water (salt, brackish, or 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      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePropeller \u0026amp; hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect each trip\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eRemove fishing line; check hub and blades; torque nut to spec.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eElectrical system\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSeasonally\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eClean battery connections; verify charge output and grounds.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\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\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/water-pumps\"\u003eWater Pumps\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\"\u003eImpeller Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/starters\"\u003eStarters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropellers \u0026amp; Hardware: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase Sealing: \u003ca href=\"https:\/\/seasierra.com\/collections\/lower-unit-seal-kits\"\u003eLower Unit Seal Kits\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%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect intake screens for blockage; verify water pump impeller condition; test thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump kit, thermostat, gaskets, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck prop for damage\/slip; replace fuel filters; verify fresh fuel; inspect spark plugs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePropeller, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfirm battery voltage; prime fuel system; inspect plugs and ignition leads; look for vacuum leaks.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSpark plugs, fuel filter, battery cables, intake gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or milky gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect for fishing line on prop shaft; drain and check gear oil; verify shift cable adjustment.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, gear oil drain seals, prop hardware\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 routine parts (filters, anodes, spark plugs) may interchange across years, but many items differ by platform (V6 vs. V8) and gearcase generation. Always confirm with full model code and serial number.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eAs a baseline, every 200 hours or 2 years, whichever comes first. Replace sooner if you see a weak tell‑tale, overheat alarms, or after running in sandy\/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\u003eEvery 100 hours or annually. Inspect for water, metal, or burnt odor. Replace drain and vent screw seals at each service.\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\u003eModel code, serial number, horsepower, shaft length (L\/XL\/XXL), control type (mechanical or digital), and clear photos of the nameplate and the part being replaced.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e7eb;\"\u003e\n  \u003cp\u003eReady to find what you need? Browse the main PCM collection by category and filter by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block; padding:10px 14px; background:#0d6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop PCM Parts \u0026amp; Service Items\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px; color:#6b7280;\"\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":"sherwood-major-repair-kit-with-10615-impeller-fits-sherwood-p102-p105-p109-p110-pumps-replaces-sherwood-19354-19354-shw-23977","title":"Sherwood Major Repair Kit with 10615 Impeller – Fits Sherwood P102, P105 and P109 Pumps (Replaces Sherwood 19354)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eSherwood Major Repair Kit with 10615 Impeller\u003c\/strong\u003e provides the wear components needed to rebuild selected Sherwood crank-driven raw-water pumps. It is designed for Sherwood pump models \u003cstrong\u003eP102, P105 and P109\u003c\/strong\u003e, which are used in a range of inboard marine applications.\u003c\/p\u003e\n\u003cp\u003eThe kit is a replacement for the Sherwood \u003cstrong\u003e19354\u003c\/strong\u003e major repair kit reference. Confirm the pump model, cover style and component arrangement before ordering, especially when servicing an older pump or a pump that has previously been rebuilt.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mechanical raw-water pump rebuild.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpeller:\u003c\/strong\u003e Includes a 12-blade 10615 impeller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Sherwood P102, P105 and P109 pump models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket note:\u003c\/strong\u003e The supplied end-cover gasket is intended for the applicable later-style pump configuration; compare it with the gasket or O-ring removed from your pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Reference\u003c\/h2\u003e\n\u003cp\u003eUse the following reference to compare the kit with the applicable Sherwood pump-repair listing. Part-number references do not replace verification of the pump model and cover configuration.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Reference\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSherwood\u003c\/td\u003e\n\u003ctd\u003e19354\u003c\/td\u003e\n\u003ctd\u003eMajor repair kit reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSherwood\u003c\/td\u003e\n\u003ctd\u003e10615\u003c\/td\u003e\n\u003ctd\u003eImpeller reference included with this kit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine raw-water pump major repair kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eMechanical\u003c\/dd\u003e\n  \u003cdt\u003eImpeller\u003c\/dt\u003e\n\u003cdd\u003e10615, 12-blade marine impeller\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eNeoprene\u003c\/dd\u003e\n  \u003cdt\u003eShaft Connection\u003c\/dt\u003e\n\u003cdd\u003e5\/8 in (16 mm)\u003c\/dd\u003e\n  \u003cdt\u003eDrive Type\u003c\/dt\u003e\n\u003cdd\u003e3\/16 in key drive\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Cam\u003c\/li\u003e\n\u003cli\u003e1 x Cam screw\u003c\/li\u003e\n\u003cli\u003e1 x Cam screw washer\u003c\/li\u003e\n\u003cli\u003e2 x Bearings\u003c\/li\u003e\n\u003cli\u003e1 x Small external retaining ring\u003c\/li\u003e\n\u003cli\u003e1 x Large internal retaining ring\u003c\/li\u003e\n\u003cli\u003e1 x Key\u003c\/li\u003e\n\u003cli\u003e1 x Lip seal\u003c\/li\u003e\n\u003cli\u003e1 x 10615 impeller\u003c\/li\u003e\n\u003cli\u003e1 x O-ring\u003c\/li\u003e\n\u003cli\u003e1 x End-cover gasket for the applicable later-style pump configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the vessel battery and close the raw-water intake seacock.\u003c\/li\u003e\n\u003cli\u003ePlace a catch pan under the pump and drain remaining water by loosening the hoses as needed.\u003c\/li\u003e\n\u003cli\u003eRemove the pump end-cover screws, cover and old gasket or O-ring.\u003c\/li\u003e\n\u003cli\u003eCarefully remove the old impeller. Use an impeller puller if necessary and avoid damaging the pump housing.\u003c\/li\u003e\n\u003cli\u003eInspect the housing, shaft and cover for scoring, corrosion or other damage. Clean all mating surfaces thoroughly.\u003c\/li\u003e\n\u003cli\u003eReplace the lip seal, bearings and retaining rings with the supplied components.\u003c\/li\u003e\n\u003cli\u003eApply a small amount of non-petroleum-based lubricant, such as silicone lubricant or soapy water, to the impeller and housing.\u003c\/li\u003e\n\u003cli\u003eInstall the impeller with a twisting motion in the direction of shaft rotation. Do not force it onto the shaft; it must move freely for the pump to prime correctly.\u003c\/li\u003e\n\u003cli\u003eInstall the key, cam and cam-screw components.\u003c\/li\u003e\n\u003cli\u003eFit the correct new gasket or O-ring and securely fasten the end cover.\u003c\/li\u003e\n\u003cli\u003eReconnect the hoses, open the seacock fully and reconnect the battery.\u003c\/li\u003e\n\u003cli\u003eAfter starting the engine, immediately check the pump and hose connections for leaks and confirm normal raw-water flow.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat Sherwood pump models does this kit fit?\u003c\/summary\u003e\u003cp\u003eThis major repair kit is listed for Sherwood raw-water pump models P102, P105 and P109. Verify the pump identification and cover configuration before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this kit fit every P102, P105 or P109 pump?\u003c\/summary\u003e\u003cp\u003eNot necessarily. Pump revisions may use different covers, gaskets or internal arrangements. Compare the supplied gasket or O-ring, key, cam and other components with your existing pump before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat impeller is included?\u003c\/summary\u003e\u003cp\u003eThe kit includes a 10615 12-blade impeller. The impeller reference should not be confused with a complete major repair kit.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing water-pump impeller?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include higher-than-normal engine temperature, reduced water flow from the exhaust, damaged or missing impeller blades, and water leakage from the pump housing or seal area.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow should the new impeller be lubricated?\u003c\/summary\u003e\u003cp\u003eUse a non-petroleum-based lubricant, such as silicone lubricant or soapy water. Do not force the impeller onto the shaft, and do not use petroleum-based grease on the neoprene impeller.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\u003cp\u003eInspect the impeller during routine pump maintenance and replace it when blades show tearing, cracking, distortion or other damage. Replacement intervals depend on operating hours, water conditions and storage practices.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM Sherwood part?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement repair kit, not a genuine OEM Sherwood kit. Sherwood and the referenced part numbers are used only to identify the applicable pump and replacement references.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the shipping speed and cost?\u003c\/summary\u003e\u003cp\u003eTypical international transit is 5–15 days. Standard shipping is free to most regions; available expedited options and charges are shown at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return period for unused items in their original condition. Contact support for return instructions.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the pump model and compare the new components with the original parts before installation.\u003c\/li\u003e\n\u003cli\u003eClose the seacock and disconnect the battery before servicing the raw-water pump.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement kit, not a genuine OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended when pump, shaft or housing damage is present.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine replacement parts selected for dependable service in real-world conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Standard delivery is available to most regions, with shipping options shown at checkout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing and practical replacement solutions for marine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723798712635,"sku":"21FIK013-G","price":61.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/21FIK013-G.png?v=1763032080"},{"product_id":"belt-tensioner-fits-volvo-penta-4-3l-8-1l-pcm-crusader-replaces-3885250-3587858-ra068001","title":"Belt Tensioner for Volvo Penta 4.3L, 5.0L, 5.7L and 8.1L Marine Engines – Replaces 3885250, 3587858, 3587859 and 3861010","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ebelt tensioner assembly\u003c\/strong\u003e is designed for selected Volvo Penta marine engines using the applicable serpentine-belt tensioner arrangement. Catalog references identify applications in the Volvo Penta 4.3L, 5.0L, 5.7L and 8.1L engine families.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, compare the part number and tensioner arrangement on your engine with the references and application information below. Model-family listings alone do not confirm fitment for every engine configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement belt tensioner assembly for selected Volvo Penta marine engines.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain correct tension in the serpentine belt system.\u003c\/li\u003e\n  \u003cli\u003eSupplied as one individual tensioner assembly.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement; not an original Volvo Penta component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number References\u003c\/h2\u003e\n\u003cp\u003eThe following manufacturer part numbers are listed as applicable references for this tensioner assembly. Confirm the number on your original part before purchase.\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\u003eManufacturer\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\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3885250\u003c\/td\u003e\n        \u003ctd\u003ePrimary catalog reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3587858\u003c\/td\u003e\n        \u003ctd\u003eApplication reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3587859\u003c\/td\u003e\n        \u003ctd\u003eApplication reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3861010\u003c\/td\u003e\n        \u003ctd\u003eApplication 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 catalog application references below are grouped by engine family. Check your exact model designation, belt routing and original tensioner before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Volvo Penta Engine Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eEngine Models Listed\u003c\/th\u003e\n        \u003cth\u003eEngine Family\u003c\/th\u003e\n        \u003cth\u003eSystem\u003c\/th\u003e\n        \u003cth\u003eApplicable Reference\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e4.3 GL, 4.3 GXI, 4.3 GI, 4.3 OSI\u003c\/td\u003e\n        \u003ctd\u003e4.3L\u003c\/td\u003e\n        \u003ctd\u003eMarine serpentine-belt system\u003c\/td\u003e\n        \u003ctd\u003e3885250 \/ 3587858\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.0 GXI, 5.0 GI, 5.0 OSI\u003c\/td\u003e\n        \u003ctd\u003e5.0L\u003c\/td\u003e\n        \u003ctd\u003eMarine serpentine-belt system\u003c\/td\u003e\n        \u003ctd\u003e3885250 \/ 3587858\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e5.7 GI, 5.7 GXI, 5.7 OSI\u003c\/td\u003e\n        \u003ctd\u003e5.7L\u003c\/td\u003e\n        \u003ctd\u003eMarine serpentine-belt system\u003c\/td\u003e\n        \u003ctd\u003e3885250 \/ 3587858\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e8.1 GI, 8.1 GXI, 8.1 IPSCE, 8.1 OSI\u003c\/td\u003e\n        \u003ctd\u003e8.1L\u003c\/td\u003e\n        \u003ctd\u003eMarine serpentine-belt system\u003c\/td\u003e\n        \u003ctd\u003e3885250 \/ 3587859 \/ 3861010\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\u003eSerpentine belt tensioner assembly\u003c\/dd\u003e\n  \u003cdt\u003eProduct Configuration\u003c\/dt\u003e\n  \u003cdd\u003eSingle replacement assembly\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Volvo Penta marine engines with the matching belt-tensioner arrangement\u003c\/dd\u003e\n  \u003cdt\u003ePart Type\u003c\/dt\u003e\n  \u003cdd\u003eAftermarket replacement\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Belt tensioner assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and allow the engine to cool before beginning work.\u003c\/li\u003e\n  \u003cli\u003eConfirm that the replacement tensioner matches the original part and belt-routing arrangement.\u003c\/li\u003e\n  \u003cli\u003eUse the appropriate serpentine-belt tool or breaker bar to release belt tension.\u003c\/li\u003e\n  \u003cli\u003eRemove the belt from the tensioner and note its routing before disassembly.\u003c\/li\u003e\n  \u003cli\u003eRemove the original tensioner and retain any hardware that must be reused, unless replacement hardware is specified by the service information.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surface and install the replacement tensioner in the original position.\u003c\/li\u003e\n  \u003cli\u003eTighten the mounting fasteners to the engine manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eRoute the belt according to the engine service manual and slowly release the tensioner.\u003c\/li\u003e\n  \u003cli\u003eCheck that the belt is fully seated and aligned on every pulley before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eAfter startup, inspect belt tracking and listen for abnormal noise.\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 fitment?\u003c\/summary\u003e\n  \u003cp\u003eMatch the exact number on your original tensioner with the listed references, then confirm the engine model and belt arrangement. The 4.3L, 5.0L, 5.7L and 8.1L engine families contain multiple configurations, so the model family alone is not sufficient.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a worn tensioner?\u003c\/summary\u003e\n  \u003cp\u003ePossible symptoms include belt squealing or chirping, abnormal pulley noise, belt misalignment, uneven belt wear, visible wobble or excessive movement at the tensioner.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs a special tool required?\u003c\/summary\u003e\n  \u003cp\u003eA serpentine-belt tensioner tool or a suitable long-handled breaker bar is commonly used to release belt tension. Follow the procedures and safety requirements in your engine service manual.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this for a V-belt system?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is for the matching serpentine-belt tensioner arrangement. It should not be used on an engine equipped with a different V-belt or accessory-drive configuration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is an aftermarket replacement assembly intended for applications using the listed references. It is not manufactured or sold as an original Volvo Penta component.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if my engine model is not listed?\u003c\/summary\u003e\n  \u003cp\u003eDo not assume compatibility from engine displacement alone. Compare the original part number, mounting arrangement and belt routing, or contact the seller with the complete engine model and original tensioner information before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the original part number, mounting configuration and belt routing before purchase.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery and keep hands, clothing and tools away from moving belts and pulleys during testing.\u003c\/li\u003e\n  \u003cli\u003eUse the manufacturer's torque specifications and service procedures.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are not familiar with marine engine accessory-drive service.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement and is not an Original Equipment Manufacturer 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 — We supply aftermarket components for a wide range of marine service applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Information\u003c\/strong\u003e — Check part numbers and complete engine details before ordering to help ensure the correct replacement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact us with your engine model and original part information if you need help confirming an application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723799040315,"sku":"6D-8FRI-KFLZ","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/6D-8FRI-KFLZ.png?v=1763032095"}],"url":"https:\/\/seasierra.com\/collections\/pcm-300hp-4-stroke-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}