{"title":"Volvo Penta 4-Stroke Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;max-width:1100px;\"\u003e\n  \u003cp\u003eThis page is dedicated to Volvo Penta 4‑Stroke outboard engines. Use it to find compatible parts and straightforward service information, including maintenance tips, commonly replaced components, and troubleshooting guidance. You can also browse the main Volvo Penta collection. Scroll to the bottom of the page to start browsing parts for this engine, and on the collection page use the Filter \u0026amp; Sort controls to narrow by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#0d6efd;color:#fff;border-radius:6px;text-decoration:none;\"\u003eBrowse All Volvo Penta Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px;max-width:1100px;\"\u003e\n  \u003ch2\u003eHow to Identify Your Volvo Penta 4‑Stroke Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate\/serial plate: Typically on the transom\/clamp bracket or swivel bracket. Record the full model designation and serial number.\u003c\/li\u003e\n    \u003climodel code basics:\u003e\u003cspan style=\"display:none\"\u003e\u003c\/span\u003e\n    \u003cli\u003eModel code basics: The code usually indicates horsepower family, shaft length (S\/L\/XL), and control type (tiller\/remote). A suffix may denote a production revision or year range.\u003c\/li\u003e\n    \u003cli\u003ePlatform cues: 4‑stroke inline‑3 models are common in mid‑range HP; inline‑4 platforms appear in higher mid‑range. Cowling shape, intake layout, and ECU harness connectors can help distinguish platforms.\u003c\/li\u003e\n    \u003cli\u003eEmissions\/engine family label: Often found near the cowling base. The printed family\/serial helps confirm parts compatibility.\u003c\/li\u003e\n  \u003c\/limodel\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px;max-width:1100px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eInline‑3 EFI 4‑Stroke (mid‑range)\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;border-bottom:1px solid #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInline‑3, EFI 4‑stroke gasoline outboard.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eTypical Volvo Penta 4‑stroke outboard variants in the mid‑HP range (various shaft lengths and control types).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eGood fuel economy, compact size, smooth idle, straightforward service access.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eImpeller, gearcase seals, and some ignition\/fuel components vary by serial range and gearcase family—verify with the nameplate.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eInline‑4 EFI 4‑Stroke (upper mid‑range)\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;border-bottom:1px solid #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInline‑4, EFI 4‑stroke gasoline outboard.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eVolvo Penta 4‑stroke outboards in higher mid‑range horsepower with XL shaft options and remote controls.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eStronger mid‑range torque, supports heavier boats, robust charging systems.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003ePropeller pitch and gear ratio changes affect performance; prop and gearcase parts may differ across serial breaks.\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;max-width:1100px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for 4‑stroke outboards; always follow your official Volvo Penta service manual for the exact schedule and procedures.\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;border-bottom:1px solid #f0f0f0;\"\u003eEngine oil \u0026amp; filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eFirst 20 hrs, then every 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eUse marine‑grade FC‑W oil; replace drain gasket; warm engine before change.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-service-maintenance-kits\"\u003eVolvo Penta Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eChange sooner after impact\/grounding; inspect for water or metal.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-lower-unit-seal-kits\"\u003eVolvo Penta Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect 100 hrs; replace 100–200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eUse the specified heat range and gap; replace as a set.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eReplace more often with ethanol fuel or contamination; prime system after service.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-fuel-filters\"\u003eVolvo Penta Fuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect annually; replace 2–3 seasons\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eReplace sooner in sandy\/silty water or if overheat occurs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-water-pump-repair-kits\"\u003eVolvo Penta Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAnodes (zinc\/aluminum\/magnesium)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect every 50 hrs; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eMatch anode alloy to water type (salt\/brackish\/fresh) and keep bonding clean.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-anodes\"\u003eVolvo Penta Anodes\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;max-width:1100px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-service-maintenance-kits\"\u003eVolvo Penta Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-water-pumps\"\u003eVolvo Penta Water Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-fuel-filters\"\u003eVolvo Penta Fuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-starters\"\u003eVolvo Penta Starters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-anodes\"\u003eVolvo Penta Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-propellers\"\u003eVolvo Penta Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eSealing \u0026amp; Gearcase: \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-lower-unit-seal-kits\"\u003eVolvo Penta Lower 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;max-width:1100px;\"\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;border-bottom:1px solid #f0f0f0;\"\u003eWeak tell‑tale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect intake screens for debris, check water pump condition, verify thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eWater pump kit\/impeller, thermostat, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eConfirm fresh fuel, prime bulb is firm, battery voltage is healthy, and plugs are clean\/gapped.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eFuel filters, spark plugs, sensors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect prop for damage\/fouling, check for clogged filters, verify throttle and timing per service manual.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003ePropeller, fuel filters, sensors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCheck oil level\/condition; look for water intrusion (milky oil); inspect prop shaft for fishing line.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eLower unit seal kit, bearings, propeller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eNo charge or erratic charging voltage\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eVerify battery and cables, inspect charging connections, test rectifier\/alternator output.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAlternator, rectifier\/regulator\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cdiv style=\"margin-top:8px;\"\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-water-pump-repair-kits\"\u003eWater Pump Kits\u003c\/a\u003e ·\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-propellers\"\u003ePropellers\u003c\/a\u003e ·\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-fuel-filters\"\u003eFuel Filters\u003c\/a\u003e ·\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-sensors\"\u003eSensors\u003c\/a\u003e ·\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-lower-unit-seal-kits\"\u003eLower Unit Seals\u003c\/a\u003e ·\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-alternators\"\u003eAlternators\u003c\/a\u003e ·\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/rectifiers\"\u003eRectifiers\u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:16px;max-width:1100px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome components interchange within the same platform and serial range, but items like impellers, gearcase seals, sensors, and props often change across serial breaks. Always verify using the full model and serial number from your nameplate.\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\u003eInspect annually and replace every 2–3 seasons under normal use. Replace sooner if the tell‑tale weakens, an overheat occurs, or you operate in sandy\/silty water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the gear oil?\u003c\/summary\u003e\n    \u003cp\u003eEvery 100 hours or annually, and anytime after an impact\/grounding or if water contamination is suspected.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information is needed to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the model code, serial number, horsepower, shaft length (S\/L\/XL), control type (tiller or remote), and any casting numbers or ECU labels from the component in question.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px;border-top:1px solid #e5e7eb;max-width:1100px;\"\u003e\n  \u003cp\u003eReady to find parts for your Volvo Penta outboard? Browse the main Volvo Penta collection and use Filter \u0026amp; Sort to narrow by horsepower, year, and category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-parts\" style=\"display:inline-block;margin:8px 0;padding:10px 14px;background:#0d6efd;color:#fff;border-radius:6px;text-decoration:none;\"\u003eShop Volvo Penta Parts\u003c\/a\u003e\n  \u003cp style=\"color:#4b5563;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"serpentine-belt-tensioner-fits-volvo-penta-3-0l-8-2l-replaces-volvo-penta-3860079-872984","title":"Alternator Belt Idler Pulley \/ Tensioner for Volvo Penta 4.3L–8.2L, Replaces OEM 3860079","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\u003ealternator belt idler pulley and tensioner assembly\u003c\/strong\u003e is intended for selected Volvo Penta stern-drive and out-drive gasoline engines with 4.3L, 5.0L, 5.7L, 7.4L, or 8.2L displacement. It supports proper alternator belt routing and tension when replacing a worn or damaged original assembly.\u003c\/p\u003e\n\u003cp\u003eThe component is listed as a replacement for Volvo Penta OEM part number \u003cstrong\u003e3860079\u003c\/strong\u003e. Confirm the original part number, pulley arrangement, and engine application before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket replacement for the alternator belt idler pulley\/tensioner application.\u003c\/li\u003e\n  \u003cli\u003eDesigned for bolt-on installation where the original assembly uses the same mounting arrangement.\u003c\/li\u003e\n  \u003cli\u003eHelps maintain correct belt alignment and tension for reliable accessory drive operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Reference\u003c\/h2\u003e\n\u003cp\u003eUse the reference below to compare this replacement with the part installed on your engine.\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\u003eOEM Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e3860079\u003c\/td\u003e\n\u003c\/tr\u003e\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 component for Volvo Penta stern-drive and out-drive applications in the engine displacement range shown below. Engine model, production year, serial number, belt routing, and mounting configuration can affect fitment, so verify all details against the original part or service documentation.\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 Displacement\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eFitment Note\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\u003e4.3L\u003c\/td\u003e\n\u003ctd\u003eStern drive \/ out-drive\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3860079\u003c\/td\u003e\n\u003ctd\u003eVerify exact engine model, year, serial range, and belt layout.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0L\u003c\/td\u003e\n\u003ctd\u003eStern drive \/ out-drive\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3860079\u003c\/td\u003e\n\u003ctd\u003eVerify exact engine model, year, serial range, and belt layout.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.7L\u003c\/td\u003e\n\u003ctd\u003eStern drive \/ out-drive\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3860079\u003c\/td\u003e\n\u003ctd\u003eVerify exact engine model, year, serial range, and belt layout.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e7.4L\u003c\/td\u003e\n\u003ctd\u003eStern drive \/ out-drive\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3860079\u003c\/td\u003e\n\u003ctd\u003eVerify exact engine model, year, serial range, and belt layout.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e8.2L\u003c\/td\u003e\n\u003ctd\u003eStern drive \/ out-drive\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003e3860079\u003c\/td\u003e\n\u003ctd\u003eVerify exact engine model, year, serial range, and belt layout.\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\u003eAlternator belt idler pulley \/ tensioner assembly\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eVolvo Penta stern-drive and out-drive engines\u003c\/dd\u003e\n  \u003cdt\u003eSupported Displacements\u003c\/dt\u003e\n  \u003cdd\u003e4.3L, 5.0L, 5.7L, 7.4L, and 8.2L\u003c\/dd\u003e\n  \u003cdt\u003eReference OEM Part Number\u003c\/dt\u003e\n  \u003cdd\u003e3860079\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eBolt-on replacement; confirm mounting arrangement before installation\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n  \u003cdd\u003eNot specified in the company catalog\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eNot specified in the company catalog\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n  \u003cdd\u003eRefer to the seller's current warranty terms\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 Alternator belt idler pulley \/ tensioner assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a single replacement component, not a multi-part kit. Belt, mounting hardware, and other accessories are not included unless separately stated in the order details.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the boat's battery and allow the engine to cool before beginning work.\u003c\/li\u003e\n  \u003cli\u003eConfirm the replacement part number and compare the pulley, mounting points, and belt path with the original assembly.\u003c\/li\u003e\n  \u003cli\u003eRecord or photograph the existing belt routing before removing the belt.\u003c\/li\u003e\n  \u003cli\u003eUse the appropriate belt tool or breaker bar to release belt tension, then remove the belt from the pulley.\u003c\/li\u003e\n  \u003cli\u003eRemove the original idler pulley\/tensioner assembly and clean the mounting surface.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement assembly using the engine manufacturer's specified fastener torque.\u003c\/li\u003e\n  \u003cli\u003eRoute the belt according to the engine's belt-routing diagram and ensure it is fully seated on every pulley.\u003c\/li\u003e\n  \u003cli\u003eCheck pulley alignment and belt tension before starting the engine. Reconnect the battery only after the installation is complete.\u003c\/li\u003e\n  \u003cli\u003eRun the engine briefly and inspect for belt tracking, abnormal noise, or contact with surrounding components.\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 part fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eCompare your original assembly and OEM part number with this listing. The company catalog identifies the application range as Volvo Penta 4.3L, 5.0L, 5.7L, 7.4L, and 8.2L stern-drive or out-drive engines. Exact model, year, serial number, belt routing, and mounting configuration should still be verified before purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are common signs of a failing idler pulley or tensioner?\u003c\/summary\u003e\n  \u003cp\u003ePossible symptoms include belt squealing, rattling, visible belt misalignment, uneven belt wear, pulley wobble, rough pulley rotation, or a belt that cannot maintain proper tension. Inspect the belt and related pulleys together when diagnosing the system.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShould the belt be replaced at the same time?\u003c\/summary\u003e\n  \u003cp\u003eInspect the belt during installation. If it is cracked, glazed, stretched, contaminated, or unevenly worn, replace it according to the engine manufacturer's service guidance. The belt is not included with this product.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs special equipment required?\u003c\/summary\u003e\n  \u003cp\u003eTypical work may require a suitable socket set and a serpentine-belt tensioning tool or breaker bar. Use the tools and torque specifications appropriate for your specific engine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is for an aftermarket replacement component referenced to Volvo Penta OEM part number 3860079.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if the pulley does not align correctly?\u003c\/summary\u003e\n  \u003cp\u003eDo not operate the engine if the belt does not track centrally or the pulley does not sit flush. Recheck the part number, mounting position, spacers, belt routing, and engine-specific installation instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the OEM part number, engine displacement, mounting arrangement, and belt path before ordering.\u003c\/li\u003e\n  \u003cli\u003eModel and displacement alone may not confirm fitment; year and serial-number conditions can apply.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery before service and keep hands, tools, and clothing away from moving belts and pulleys.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if the belt-drive system or required torque specifications are unfamiliar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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 practical service applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are shown at checkout where available.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing with product information focused on accurate application matching.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723786522939,"sku":"21TP009","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Serpentine_Belt_Tensioner_Pulley_for_Volvo_Penta_43L-82L_____3860079_-_JLM_MARINE-8287367.png?v=1763031731"}],"url":"https:\/\/seasierra.com\/collections\/volvo-penta-4-stroke-outboard-marine-engine-parts-6.oembed","provider":"SeaSierra","version":"1.0","type":"link"}