{"title":"Volvo Penta 4-Stroke Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page is for Volvo Penta 4‑Stroke outboard engines across all horsepower ranges. Use it to find compatible parts and service information. Below you’ll find maintenance tips, commonly replaced components, and troubleshooting guidance. You can also browse the main Volvo Penta collection. Scroll to the bottom to start browsing parts for this engine, and remember that on the collection page you can 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\" style=\"display:inline-block; margin-top:8px; padding:10px 14px; background:#0b5cab; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Volvo Penta Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eHow to Identify Your Volvo Penta 4‑Stroke Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the identification plate: usually on the transom\/clamp bracket, swivel bracket, or under the cowling near the cylinder block. Note both the model designation and serial number.\u003c\/li\u003e\n    \u003cli\u003eModel code basics: the code typically indicates horsepower family, shaft length (S\/L\/XL), and control type (tiller vs. remote). Suffixes may denote production revision or market region.\u003c\/li\u003e\n    \u003cli\u003eYear confirmation: match your serial\/model ID to your service manual or parts catalog to confirm year range before ordering.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: 4‑stroke EFI engines will have a fuel rail\/injectors and an oil filter; larger models may be V6\/V8, while midrange engines are commonly inline‑3\/inline‑4.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eEngine Platform Overview\u003c\/h2\u003e\n  \u003ch3 style=\"margin-top:12px;\"\u003eMidrange Inline 4‑Stroke EFI\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:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInline‑3 or Inline‑4, 4‑stroke EFI, remote or tiller control options\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eRepresentative mid‑horsepower four‑stroke outboards (model specifics verified by serial\/model plate)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eQuiet operation, good fuel economy, strong midrange torque, straightforward routine service\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eUse FC‑W marine oil weight specified in your manual. Anodes, water pump parts, and fuel filters are model‑year specific—confirm by serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3 style=\"margin-top:16px;\"\u003eHigh‑Output 4‑Stroke (V6\/V8)\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:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eV6\/V8, 4‑stroke EFI with high‑capacity cooling and charging systems\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eLarge‑horsepower four‑stroke platforms used on heavier boats (verify exact model family by serial)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eHigh thrust and top‑end performance, robust alternator output for onboard electronics\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eMany components are platform‑specific (thermostats, water pump kits, sensors). Confirm part compatibility by model and serial before purchase.\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=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for four‑stroke outboards. Always follow the official service manual for your specific model, hours, 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:6px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:6px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:6px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:6px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEngine oil \u0026amp; filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eUse marine FC‑W oil weight recommended in manual; replace drain plug gasket if required.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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:6px;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect for water intrusion (milky fluid) and metal debris; replace seals if needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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:6px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck gap and insulator color; replace if fouled or out of spec.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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:6px;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eReplace more often with ethanol fuel or if contamination is suspected.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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:6px;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e2–3 seasons (or 200–300 hrs)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eReplace sooner if overheat alarms, weak tell‑tale, or sandy\/silty operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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:6px;\"\u003eAnodes (external\/internal)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect 50 hrs; replace when ~50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eMatch anode alloy to water type (zinc: salt, aluminum: brackish\/salt, magnesium: fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-anodes\"\u003eVolvo Penta Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eThermostat\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEvery 2–3 years\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eReplace if running cold\/hot or with scale buildup.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta\"\u003eVolvo Penta\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePropeller \u0026amp; hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect each service\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck for dings, spun hub, and correct pitch; verify nut, washer, and cotter pin.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-propellers\"\u003eVolvo Penta Propellers\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=\"margin-top:24px;\"\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 and \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-impellers\"\u003eVolvo Penta Impellers\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 and \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-sensors\"\u003eVolvo Penta Sensors\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\u003eLower Unit Seals \u0026amp; Service: \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=\"margin-top:24px;\"\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:6px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:6px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:6px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect water inlet screens for blockage; verify impeller condition; confirm thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eWater pump repair kit, impeller, thermostat, intake screen, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck fuel quality, primer bulb, and for air leaks; inspect spark plugs and EFI connectors.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eFuel filter, spark plugs, fuel pump, sensors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eExamine prop for damage or incorrect pitch; verify compression and throttle synchronization; check for restricted fuel flow.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePropeller\/hub, fuel filter, injectors, sensors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eGearcase noise or milky gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eDrain a sample to inspect for water intrusion and metal; check prop‑shaft and drive‑shaft seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eLower unit seal kit, bearings, washers\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=\"margin-top:24px;\"\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\u003eNot always. Four‑stroke outboards may share service items across years, but many components (cooling, sensors, ignition) are platform‑ and serial‑specific. Always verify by model designation 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 preventative measure every 2–3 seasons (or 200–300 hours), and immediately if you see an overheat alarm, weak tell‑tale, or after operating in sandy\/silty water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eAt least annually or every 100 hours. Inspect the drained oil for a milky appearance (water intrusion) or excessive metal, which may indicate worn seals or gears.\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 model designation, serial number, approximate horsepower, shaft length, and any visible part numbers or photos of the components you are replacing.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"margin-top:24px; padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eReady to find parts? Browse the main Volvo Penta collection to filter by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta\" style=\"display:inline-block; margin:8px 0; padding:10px 14px; background:#0b5cab; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Volvo Penta Parts\u003c\/a\u003e\n  \u003cp style=\"font-size:0.95em; color:#374151;\"\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":"multi-rib-belt-for-volvo-penta-d4-d6-260-370hp-2003-21407026","title":"Marine Belt for Volvo Penta D4-260, D6-350 and D6-370 (21407026, 3583963)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis replacement marine belt is designed for selected Volvo Penta stern-drive and out-drive applications, including the \u003cstrong\u003eD4-260, D6-350, and D6-370\u003c\/strong\u003e engine models. It is supplied as one belt for the engine belt-drive system.\u003c\/p\u003e\n\u003cp\u003eUse the OEM reference numbers and exact engine model to confirm compatibility before ordering. The company catalog identifies this belt with Volvo Penta reference numbers \u003cstrong\u003e21407026\u003c\/strong\u003e and \u003cstrong\u003e3583963\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement marine belt for selected Volvo Penta applications.\u003c\/li\u003e\n\u003cli\u003eSingle-belt product, not a kit.\u003c\/li\u003e\n\u003cli\u003eFitment is limited to the engine models listed below.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThese are the Volvo Penta reference numbers identified for this belt. Confirm the number on your original belt or engine parts documentation before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eOEM Reference Number\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\u003e21407026\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3583963\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe company fitment record lists the following Volvo Penta engine models. No general year range or serial-number range is specified, so verify the exact model and reference number for your engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eEngine Model\u003c\/th\u003e\n        \u003cth\u003eOEM Reference Numbers\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\u003eD4-260\u003c\/td\u003e\n        \u003ctd\u003e21407026, 3583963\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eD6-350\u003c\/td\u003e\n        \u003ctd\u003e21407026, 3583963\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eD6-370\u003c\/td\u003e\n        \u003ctd\u003e21407026, 3583963\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 belt\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Volvo Penta stern-drive and out-drive engine applications\u003c\/dd\u003e\n  \u003cdt\u003eListed Engine Models\u003c\/dt\u003e\n  \u003cdd\u003eD4-260, D6-350, and D6-370\u003c\/dd\u003e\n  \u003cdt\u003eOEM Reference Numbers\u003c\/dt\u003e\n  \u003cdd\u003e21407026 and 3583963\u003c\/dd\u003e\n  \u003cdt\u003eProduct Quantity\u003c\/dt\u003e\n  \u003cdd\u003eOne belt\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Marine replacement belt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm that your engine model and original belt reference number match the application information above.\u003c\/li\u003e\n  \u003cli\u003eTurn off the engine, allow it to cool completely, and disconnect the battery before beginning work.\u003c\/li\u003e\n  \u003cli\u003eRecord the existing belt routing before removal.\u003c\/li\u003e\n  \u003cli\u003eRelease the belt tension according to the engine manufacturer's service procedure and remove the old belt.\u003c\/li\u003e\n  \u003cli\u003eInspect the pulleys and tensioning components for wear, corrosion, contamination, or damage before installation.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement belt along the original routing and make sure it is fully seated in every pulley groove.\u003c\/li\u003e\n  \u003cli\u003eAdjust belt tension according to the engine manufacturer's specifications. Do not rely on a generic deflection measurement when a model-specific procedure is available.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery, run the engine briefly, and check that the belt tracks correctly without slipping, fraying, or abnormal noise.\u003c\/li\u003e\n  \u003cli\u003eStop the engine and recheck the installation after the initial run.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhich engines are listed for this belt?\u003c\/summary\u003e\n  \u003cp\u003eThe company fitment record lists Volvo Penta D4-260, D6-350, and D6-370 engines. Confirm the exact model and OEM reference number before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhich OEM reference numbers are associated with this belt?\u003c\/summary\u003e\n  \u003cp\u003eThe listed Volvo Penta reference numbers are 21407026 and 3583963.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this listing include a belt kit or multiple components?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is a single replacement belt. Additional pulleys, tensioners, fasteners, or other components are not included.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow can I tell whether my belt needs replacement?\u003c\/summary\u003e\n  \u003cp\u003eInspect the belt for cracking, fraying, glazing, missing ribs, contamination, or other visible damage. Squealing, chirping, slipping, or abnormal belt tracking can also indicate a problem. Diagnose the complete belt-drive system before replacing the belt.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eAre year and serial-number ranges provided?\u003c\/summary\u003e\n  \u003cp\u003eNo specific year or serial-number range is provided in the company fitment record. Match your exact engine model and reference number rather than relying on a general year range.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if my engine is not listed?\u003c\/summary\u003e\n  \u003cp\u003eDo not assume compatibility based only on horsepower or a similar-looking belt. Check your engine documentation or the number printed on the original belt and compare it with 21407026 or 3583963 before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed and cost?\u003c\/summary\u003e\n  \u003cp\u003eShipping options, delivery estimates, and applicable costs are shown at checkout based on the destination and service selected.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the exact engine model and OEM reference number before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not install the belt on an unlisted engine solely because the belt appears similar.\u003c\/li\u003e\n  \u003cli\u003eAlways follow the engine manufacturer's service procedure for belt routing and tension.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery and keep hands, clothing, and tools away from moving components during testing.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when the correct routing or tension procedure is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Parts Support\u003c\/strong\u003e — We provide replacement components for marine engine and stern-drive applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product information is organized around listed engine models and reference numbers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Available shipping options and delivery estimates are presented at checkout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723808018747,"sku":"23BL361","price":44.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/23BL361_1.jpg?v=1763032302"}],"url":"https:\/\/seasierra.com\/collections\/volvo-penta-4-stroke-outboard-marine-engine-parts-5.oembed","provider":"SeaSierra","version":"1.0","type":"link"}