{"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\u003eDedicated to Volvo Penta 4‑Stroke outboard engines, this page helps you identify compatible parts and plan routine service. Below you’ll find maintenance intervals, commonly replaced components, troubleshooting tips, and quick links to key categories. You can also browse the main Volvo Penta collection for a wider selection. Scroll to the bottom of this page to start browsing parts for your engine. On the collection pages, use the “Filter \u0026amp; Sort” controls to narrow by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-parts\" style=\"display:inline-block; padding:10px 16px; background:#0d6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Volvo Penta Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\"\u003e\n  \u003ch2\u003eHow to Identify Your Volvo Penta 4‑Stroke Outboard Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the identification plate: typically on the transom bracket or swivel bracket. Record the model designation and serial number exactly as shown.\u003c\/li\u003e\n    \u003cli\u003eDecode the suffixes: letters\/numbers may indicate shaft length (e.g., 20\"\/25\"), starting method, and control type (tiller vs. remote).\u003c\/li\u003e\n    \u003cli\u003eConfirm it’s a 4‑Stroke: look for an engine oil fill cap and dipstick on the powerhead; 4‑Stroke outboards use crankcase oil and an engine oil filter.\u003c\/li\u003e\n    \u003cli\u003eNote platform hints: higher‑output models are often V6, while mid‑range outboards are commonly inline‑3 or inline‑4. This affects items like ignition components, water pump kits, and anodes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\"\u003e\n  \u003ch2\u003eEngine Platform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eInline‑3 \/ Inline‑4 EFI 4‑Stroke\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 #ddd; padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; 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, EFI 4‑Stroke, designed for balance of efficiency, weight, and mid‑range torque.\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;\"\u003eMid‑range 4‑Stroke outboards (inline platforms) across popular shaft lengths and control options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eGood fuel economy, smooth idle, straightforward routine service (oil\/filter, plugs, anodes, gear oil).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eVerify gearcase style and shaft length when ordering water pump kits, propellers, and lower unit seals.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 EFI 4‑Stroke\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 #ddd; padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; 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, EFI 4‑Stroke, tuned for higher output and stronger holeshot with robust 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;\"\u003eHigh‑output 4‑Stroke outboards used on larger center consoles, deck boats, and pilot boats.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eStrong mid‑to‑top‑end power, heavier‑duty gearcase options, higher capacity alternators.\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 parts are platform‑specific (thermostats, anodes, ignition, and fuel components). Confirm by serial number.\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\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp style=\"margin-bottom:10px;\"\u003eIntervals below are general 4‑Stroke guidelines. Always follow your engine’s official service manual and local 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 #ddd; padding:6px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:6px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:6px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; 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;\"\u003eFirst 20 hrs, then every 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e4‑Stroke oil service; warm engine before draining. Replace crush washer if applicable.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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:6px;\"\u003eGear Oil (Lower Unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck for water intrusion (milky oil) and metal on drain plug magnet.\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;\"\u003eInspect 100 hrs; replace ~300 hrs or 3 seasons\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eGap and heat range vary by platform; replace sooner for fouling or misfire.\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;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eReplace more frequently with ethanol fuel or contamination risk.\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;\"\u003eInspect annually; replace 2–3 seasons or ~200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eReplace sooner after dry‑running, sand\/silt use, or weak tell‑tale stream.\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 (Corrosion Protection)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect monthly (salt\/brackish); replace \u0026gt;50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eMatch anode material to water type (zinc, aluminum, or magnesium where applicable).\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    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px; color:#555; margin-top:8px;\"\u003e*Intervals are typical for recreational use and may vary with duty cycle, environment, and model year.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\"\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-alternators\"\u003eVolvo Penta Alternators\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion \u0026amp; Hubs – \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-propellers\"\u003eVolvo Penta Propellers\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\u003eGaskets \u0026amp; Seals – \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-gaskets\"\u003eVolvo Penta Gaskets\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\"\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 #ddd; padding:6px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:6px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; 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 stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect intake screens for blockage; verify impeller condition; confirm thermostat function.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eWater pump kit, thermostat, intake screen\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;\"\u003eCheck prop for damage\/slip; replace fuel filter; inspect spark plugs and fuel quality.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePropeller, fuel filter, spark plugs, fuel injectors\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;\"\u003eVerify battery voltage\/connections; inspect plugs; look for water in fuel and vacuum leaks.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eSpark plugs, fuel filter\/water separator, starter, sensors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck gear oil level\/condition; inspect for water intrusion and seal damage.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eLower unit seal kit, gear oil, bearings\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome service items cross over, but many components are platform‑specific (inline vs. V6, gearcase type, and year changes). Always confirm by serial number and model code before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eInspect annually and replace every 2–3 seasons (~200 hours). Replace sooner if the engine was dry‑run, used in sandy\/silty water, or the tell‑tale becomes weak.\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. Change immediately if you see milky oil, metal on the magnet, or after a prop strike or ground contact.\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\u003eProvide the model designation, serial number, shaft length, and any relevant options (tiller\/remote, alternator rating). Photos of the nameplate and the part you’re replacing are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eReady to find the exact fit? Browse the main Volvo Penta collection and use the filters to narrow by horsepower, year, and model.\u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/volvo-penta-parts\" style=\"display:inline-block; padding:10px 16px; background:#0d6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Volvo Penta Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n  \u003cp style=\"font-size:12px; color:#555;\"\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":"thermostat-fits-omc-johnson-evinrude-55-75-hp-replaces-396987-382385","title":"143°F Marine Thermostat for Johnson\/Evinrude, Chrysler\/Force, MerCruiser and Volvo Penta Applications","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:560px; }\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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis 143°F (62°C) marine thermostat is an aftermarket replacement designed for selected Johnson\/Evinrude, Chrysler\/Force, MerCruiser and Volvo Penta applications. It helps regulate engine operating temperature by opening at the specified 143°F rating.\u003c\/p\u003e\n  \u003cp\u003eThe company catalog identifies this product as a single thermostat rather than a multi-part kit. Confirm the part number and complete engine or sterndrive application before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eProduct type: Marine thermostat\u003c\/li\u003e\n    \u003cli\u003eOpening temperature: 143°F (62°C)\u003c\/li\u003e\n    \u003cli\u003eInstallation: Replacement thermostat; follow the engine manufacturer’s service procedure\u003c\/li\u003e\n    \u003cli\u003ePackage type: Single thermostat\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eReference Part Numbers\u003c\/h2\u003e\n  \u003cp\u003eThe following manufacturer and aftermarket references are associated with this thermostat application. Part-number matching should be confirmed against the original component and engine service information.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Reference Part Numbers\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand or application\u003c\/th\u003e\n          \u003cth\u003eReference number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC Johnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e396987\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC Johnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e382385\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC Johnson\/Evinrude\u003c\/td\u003e\n\u003ctd\u003e778261\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eChrysler\/Force\u003c\/td\u003e\n\u003ctd\u003eF335068\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e47594\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e21148403\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3557\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e13080\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-43024\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eApplication Compatibility\u003c\/h2\u003e\n  \u003cp\u003eCompany catalog records associate this thermostat with the following application groups. The records do not provide a universal model-year, serial-number or stroke range for every application, so verify the exact engine or sterndrive identification and reference number before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Application Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eManufacturer or application\u003c\/th\u003e\n          \u003cth\u003eDocumented application details\u003c\/th\u003e\n          \u003cth\u003eReference number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude outboard\u003c\/td\u003e\n          \u003ctd\u003eSelected 55, 60, 65, 70 and 75 HP outboard applications\u003c\/td\u003e\n          \u003ctd\u003e396987, 382385, 778261\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eChrysler\/Force outboard\u003c\/td\u003e\n          \u003ctd\u003eSelected 70, 90, 105, 120 and 135 HP applications\u003c\/td\u003e\n          \u003ctd\u003eF335068\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser stern drive \/ outdrive\u003c\/td\u003e\n          \u003ctd\u003eGM 6-cylinder engines with 4.1–4.8 L displacement and 90, 160 or 200 HP applications\u003c\/td\u003e\n          \u003ctd\u003e47594\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eVolvo Penta stern drive \/ outdrive\u003c\/td\u003e\n          \u003ctd\u003e3.0 GXi and 3.0GXiC applications\u003c\/td\u003e\n          \u003ctd\u003e21148403\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003eHorsepower, engine family and drive type must remain matched to the correct reference number. A similar-looking thermostat or a matching horsepower rating alone does not confirm fitment.\u003c\/p\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct type\u003c\/dt\u003e\n    \u003cdd\u003eAftermarket marine thermostat\u003c\/dd\u003e\n    \u003cdt\u003eOpening temperature\u003c\/dt\u003e\n    \u003cdd\u003e143°F (62°C)\u003c\/dd\u003e\n    \u003cdt\u003eApplications\u003c\/dt\u003e\n    \u003cdd\u003eSelected Johnson\/Evinrude, Chrysler\/Force, MerCruiser and Volvo Penta outboard or stern-drive applications\u003c\/dd\u003e\n    \u003cdt\u003ePackage configuration\u003c\/dt\u003e\n    \u003cdd\u003eSingle thermostat\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 × 143°F (62°C) marine thermostat\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eA gasket or seal is not listed as an included component in the company package record. Check the condition of the existing sealing parts and obtain any required replacement gasket or seal separately unless your application documentation specifies otherwise.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eAllow the engine to cool completely and follow all applicable safety procedures.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the battery or otherwise isolate the starting system as directed by the service manual.\u003c\/li\u003e\n    \u003cli\u003eLocate the thermostat housing and place a suitable drain pan or absorbent material below the work area.\u003c\/li\u003e\n    \u003cli\u003eRemove the housing cover according to the engine manufacturer’s instructions.\u003c\/li\u003e\n    \u003cli\u003eNote the orientation of the original thermostat before removing it.\u003c\/li\u003e\n    \u003cli\u003eClean the mating surfaces carefully, removing old gasket material and corrosion without damaging the housing.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement thermostat in the correct orientation and use the proper gasket or seal for the application.\u003c\/li\u003e\n    \u003cli\u003eReinstall the housing and tighten the fasteners to the manufacturer’s specified torque.\u003c\/li\u003e\n    \u003cli\u003eRestore the cooling system as required, start the engine in accordance with the service manual, and check for leaks and correct temperature control.\u003c\/li\u003e\n  \u003c\/ol\u003e\n  \u003cp\u003eFor stern-drive and outdrive systems, follow the specific cooling-system procedure for the engine and drive assembly. Do not rely on a generic installation procedure where the manufacturer specifies a different service method.\u003c\/p\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat temperature is this thermostat rated for?\u003c\/summary\u003e\n    \u003cp\u003eThis thermostat is rated at 143°F (62°C).\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow can I tell whether my thermostat may be failing?\u003c\/summary\u003e\n    \u003cp\u003ePossible symptoms include overheating, running too cool, failure to reach normal operating temperature, or irregular temperature changes. These symptoms can also be caused by other cooling-system problems, so diagnose the complete system before replacing parts.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this product include a gasket or seal?\u003c\/summary\u003e\n    \u003cp\u003eThe company record identifies the product as a single thermostat and does not list a gasket or seal as included. Check your application requirements and purchase any required sealing component separately unless it is supplied with your specific order.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM thermostat?\u003c\/summary\u003e\n    \u003cp\u003eThis is an aftermarket replacement thermostat. The listed manufacturer and aftermarket numbers are reference numbers used to help identify compatible applications; the product is not represented as a genuine OEM-branded component.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n    \u003cp\u003eCompare the original thermostat and its reference number with the application information above. Confirm the manufacturer, engine or drive type, horsepower, displacement where applicable, and service-manual requirements before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should a marine thermostat be replaced?\u003c\/summary\u003e\n    \u003cp\u003eInspect the thermostat as part of normal cooling-system maintenance and replace it if it sticks, corrodes, fails to regulate temperature, or does not meet the manufacturer’s service requirements. Follow the maintenance interval specified for your engine.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the complete application and reference number before purchase.\u003c\/li\u003e\n    \u003cli\u003eNever open a hot cooling system. Allow the engine to cool before service.\u003c\/li\u003e\n    \u003cli\u003eUse the correct gasket or seal and follow the manufacturer’s torque and installation instructions.\u003c\/li\u003e\n    \u003cli\u003eIncorrect thermostat fitment or installation can cause overheating, poor temperature control or engine damage.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when the correct service procedure is not known.\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-focused selection:\u003c\/strong\u003e We supply replacement components for a range of outboard, stern-drive and inboard marine applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication support:\u003c\/strong\u003e Use the listed reference numbers and application details to help identify the correct replacement before ordering.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePractical replacement parts:\u003c\/strong\u003e Our catalog is organized around serviceable marine components intended to restore reliable operation when matched to the correct application.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723979460923,"sku":"23TH612","price":31.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/23TH612_1_5e34ae9e-97b8-41a0-aa58-a69e26612693.jpg?v=1763039169"}],"url":"https:\/\/seasierra.com\/collections\/volvo-penta-4-stroke-outboard-marine-engine-parts-8.oembed","provider":"SeaSierra","version":"1.0","type":"link"}