{"title":"Johnson 2-Stroke 70-135HP Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eThis page supports Johnson 2-Stroke 70–135HP outboard engines. Use it to find compatible parts and practical service information. Inside you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse our main Johnson\/Evinrude collection. Scroll down to the bottom of this page to start browsing parts for this engine, and remember you can use the “Filter \u0026amp; Sort” controls on the collection page to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude\" style=\"display:inline-block; padding:10px 14px; background:#0b6; color:#fff; text-decoration:none; border-radius:4px;\"\u003eBrowse All Johnson\/Evinrude Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 70–135HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFind the model\/serial plate on the transom bracket or swivel bracket. Record the full model number and serial.\u003c\/li\u003e\n    \u003cli\u003eDecode suffix letters to note shaft length (e.g., S\/L\/XL), control type (tiller\/remote), and other options. These details affect parts such as shift\/steering, gearcase, and ignition components.\u003c\/li\u003e\n    \u003cli\u003eConfirm platform: many 70–75HP units are inline-3 2-strokes, while 85–135HP models are typically V4 2-strokes. Cylinder count helps distinguish ignition, carburetion, and exhaust parts.\u003c\/li\u003e\n    \u003cli\u003eFor 2-strokes, note whether your engine uses oil injection or premix. Parts for the oiling system (pump\/lines) vary by configuration.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eInline-3 (typical 70–75HP 2‑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:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCarbureted inline-3 2-stroke, CDI ignition; premix or oil-injected depending on model.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e70HP class Johnson\/Evinrude inline-3 variants.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eLightweight, simple carburetion, strong mid‑range for small to mid-size hulls.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCooling and ignition parts differ from V4 engines; verify model code before ordering.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV4 (typical 85–135HP 2‑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:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCarbureted V4 2-stroke, CDI ignition; crossflow or loop-charged depending on model year.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e85, 90, 100, 115, 135HP V4 Johnson\/Evinrude families.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eBroad torque curve and reliable power for larger runabouts and fishing boats.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSome parts interchange across V4 HP ratings, but jetting, ignition modules, and gearcase components can be model-specific.\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=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for typical recreational use. 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 #ddd; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eChange more often if water intrusion or metal on the magnet is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-lower-unit-seal-kits\"\u003eJohnson\/Evinrude\/OMC 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 #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect every 50 hours; replace 100–200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eUse the heat range and gap specified for your model (inline-3 vs V4 differ).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plug\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInline fuel filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect 50 hours; replace annually or as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace sooner if debris or water is visible; consider water-separating filter for older tanks.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\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; border-bottom:1px solid #eee;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 2 seasons (12–24 months) or 200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEssential for cooling; replace sooner if weak telltale, overheat, or sand\/silt use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-water-pump-repair-kits\"\u003eJohnson\/Evinrude\/OMC 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 #eee;\"\u003eAnodes (zinc\/aluminum\/magnesium)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect every 50 hours; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eChoose alloy for your water type (salt, brackish, fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-anodes\"\u003eJohnson\/Evinrude\/OMC Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e2‑Stroke oiling (premix or injection)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck every 50 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eVerify correct premix ratio (often 50:1) or service oil pump\/lines and filters on injection models.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-hoses\"\u003eJohnson\/Evinrude\/OMC Hoses\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;\"\u003e*Intervals vary by model, usage, and environment. Follow the service manual for your engine.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service – \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-service-maintenance-kits\"\u003eJohnson\/Evinrude\/OMC Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System – \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-water-pump-repair-kits\"\u003eJohnson\/Evinrude\/OMC Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System – \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\"\u003eFuel Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical – \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion – \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-propellers\"\u003eJohnson\/Evinrude\/OMC Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals – \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-lower-unit-seal-kits\"\u003eJohnson\/Evinrude\/OMC Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection – \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-anodes\"\u003eJohnson\/Evinrude\/OMC Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\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:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ddd; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWeak telltale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect intake screens, thermostat operation, and impeller condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump kit, intake screen, thermostat, gaskets.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck fuel quality, filter restriction, spark condition, and carb sync\/cleanliness.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel filter, fuel pump, spark plugs, carb rebuild components.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eVerify choke\/primer function, plug gap, and for air leaks in fuel\/oil lines.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSpark plugs, primer\/choke parts, hoses and clamps, gaskets.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfirm correct premix ratio or oil pump calibration; check stuck enrichening circuits.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eOil pump service parts, hoses, primer\/choke components.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect lube for water, check prop shaft for fishing line, and verify seal condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eLower unit seal kit, bearings, 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=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\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 V4 components interchange across 85–135HP families, and many inline‑3 parts interchange within 70–75HP lines. However, ignition modules, carburetor jets, gearcase ratios, and cooling components often differ. Always confirm with your exact model 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 preventive measure, replace the impeller every 2 seasons (or about 200 hours). Replace sooner if you see a weak telltale, overheat alarms, or if the engine has been run in sand\/silt.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eChange lower unit gear oil every 100 hours or annually. If the drained oil appears milky (water) or metallic, service seals and inspect gears\/bearings before further use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full model number and serial from the bracket plate, plus shaft length, control type, and whether the engine uses premix or oil injection. Photos of the nameplate and the part to be replaced are also helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width: 980px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eReady to find parts for your Johnson 2‑Stroke 70–135HP outboard? Browse our main Johnson\/Evinrude collection by horsepower, year, and model to pinpoint compatible components.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude\" style=\"display:inline-block; padding:10px 14px; background:#0b6; color:#fff; text-decoration:none; border-radius:4px;\"\u003eShop Johnson\/Evinrude Parts\u003c\/a\u003e\n  \u003cp style=\"font-size:12px; color:#555; margin-top:8px;\"\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\/johnson-2-stroke-70-135hp-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}