{"title":"Evinrude 2-Stroke Outboard Marine Engine Parts 40-250HP","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp style=\"max-width:900px;\"\u003eThis page is for Evinrude 2‑Stroke 40–250HP outboard engines. Use it to find compatible parts and practical service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse our main Johnson\/Evinrude outboard collection. Scroll to the bottom of this page to start browsing parts for this engine, and on the collection page use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\" style=\"display:inline-block; margin-top:8px; padding:10px 14px; background:#003459; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Johnson\/Evinrude Outboard Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 40–250HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate\/serial plate: Typically on the transom clamp bracket or swivel bracket; some models also have an adhesive label on the engine mid‑section. Record model number, serial number, and any suffix letters.\u003c\/li\u003e\n    \u003cli\u003eModel code \u0026amp; suffix: Evinrude model numbers include cues for horsepower, shaft length (S\/L\/X), steering\/control type, and sometimes generation. Suffix letters often denote year and running changes.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: 40–90HP are commonly inline‑3; 115–140HP are V4; 150–250HP are V6. Early‑to‑mid 2000s models may be carbureted or direct‑injected (FICHT\/E‑TEC). Verify which you have for parts compatibility.\u003c\/li\u003e\n    \u003cli\u003eGearcase\/prop hub: Smaller inline‑3 models often use smaller gearcases than V4\/V6 engines. Check prop spline count and gearcase family before ordering propellers or seal kits.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eInline‑3 (Approx. 40–90HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; max-width:1000px; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInline‑3 loop‑charged 2‑Stroke; carbureted on many models; some late models used direct injection.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e40\/50\/60\/70\/75\/90HP 2‑Stroke inline‑3 variants.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLight weight, strong low‑to‑mid range torque, simple maintenance.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eVerify gearcase family and prop hub style; water pump kits and anodes vary by year and mid‑section.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV4 (Approx. 115–140HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; max-width:1000px; border-collapse:collapse; margin-top:10px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e60° V4 2‑Stroke; carbureted or direct‑injected on select years.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e115\/130\/140HP V4 families.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eBalanced power‑to‑weight, broad propeller options, good service access.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eThermostats, water pump kits, and anodes can differ between carb and DI variants; confirm model code.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 (Approx. 150–250HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; max-width:1000px; border-collapse:collapse; margin-top:10px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e60° V6 2‑Stroke; carbureted on earlier units, direct‑injected on later models (including some HO variants).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e150\/175\/200\/225\/250HP V6 families.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eHigh output, strong mid‑range, robust gearcases for heavier boats.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePropeller hub systems, anodes, and lower unit seal kits are gearcase‑specific; verify serial\/model and shaft length.\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;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for 2‑Stroke Evinrude outboards. Always follow your official service manual for your exact model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; max-width:1000px; 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;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect for water intrusion\/metal; replace seals if contamination is found.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\"\u003eJohnson\/Evinrude\/OMC Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect every 50 hrs; replace ~100 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse correct heat range and gap; DI models may specify different plugs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eFuel filter \/ water‑separating filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eReplace more often in ethanol or dirty‑fuel environments.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump impeller or rebuild kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnnually or every 2 seasons\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCritical for cooling and overheat prevention; replace sooner if weak tell‑tale.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003eAnodes (internal\/external)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect 25–50 hrs; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse alloy matched to your water (fresh, brackish, salt).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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;\"\u003eOil injection system check (if equipped)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnnually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect reservoir screen, lines, and primer bulb; purge air after service.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-hoses\"\u003eJohnson\/Evinrude\/OMC Hoses\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eThermostats\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 2–3 years\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSticky thermostats affect warm‑up and smoking; replace as a pair on V engines.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\"\u003eJohnson\/Evinrude\/OMC Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit (as needed)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWhen leak is suspected\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eRequired if gear oil shows water\/milkiness or after fishing line damage.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\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    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"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\"\u003eWater Pump Repair Kits\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-impellers\"\u003eImpellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit: \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-lower-unit-seal-kits\"\u003eLower Unit Seal Kits\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\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-anodes\"\u003eJohnson\/Evinrude\/OMC Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel \u0026amp; Hoses: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-hoses\"\u003eJohnson\/Evinrude\/OMC Hoses\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGaskets \u0026amp; Sealing: \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-gaskets\"\u003eJohnson\/Evinrude\/OMC Gaskets\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; max-width:1000px; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect intake screens for debris; verify tell‑tale hose is clear; check impeller age.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump kit, thermostat(s), intake screen, hoses.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck fuel quality, primer bulb firmness, and spark plugs; confirm prop pitch\/condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSpark plugs, fuel filter, propeller, carb kits\/DI components, reeds (as applicable).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLook for air leaks at fuel lines, clogged filters, weak battery, and incorrect idle mixture.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eFuel filter, hoses\/primer bulb, spark plugs, gasket kits.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eVerify oil injection output or premix ratio; confirm thermostat is not stuck open.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eOil pump\/lines, spark plugs, thermostats.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eDrain oil and inspect; check for fishing line at prop shaft; perform seal test.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGear oil, lower unit seal kit, bearings, prop shaft hardware.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable across years or platforms (inline‑3, V4, V6)?\u003c\/summary\u003e\n    \u003cp\u003eSome service items cross over, but many components differ by platform, gearcase family, and whether the engine is carbureted or direct‑injected. Always confirm by model number, serial, and gearcase type.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eAnnually or every two seasons for most recreational use, and immediately if the tell‑tale is weak, the engine overheats, or the pump ran dry.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eAt least every 100 hours or once per year. If oil appears milky or contaminated, inspect and replace seals before returning the engine to service.\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 model number, serial number, horsepower, shaft length, gearcase type, and whether your engine is carbureted or direct‑injected (FICHT\/E‑TEC). Photos of the nameplate and the part needing replacement are also helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e7eb;\"\u003e\n  \u003cp style=\"max-width:900px;\"\u003eReady to shop? Browse the main Johnson\/Evinrude outboard collection and filter by horsepower, year, and category to find the right parts fast.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\" style=\"display:inline-block; margin:6px 0 10px; padding:10px 14px; background:#0b6bcb; color:#fff; text-decoration:none; border-radius:6px;\"\u003eShop Johnson\/Evinrude Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"color:#374151; font-size:14px;\"\u003eIf you’re unsure about your model, send us a clear 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-143-f-62-c-fits-johnson-evinrude-6-250-hp-replaces-5005440-378065-393659","title":"143°F Thermostat for Mercury Mariner 75–175 HP DFI Outboards – Replaces Mercury 833072002, 833072003, 833072004","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\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 aftermarket \u003cstrong\u003e143°F (62°C) thermostat\u003c\/strong\u003e is designed for specified Mercury and Mariner DFI outboard applications from 75 to 175 HP. It is a single replacement thermostat for engines using the Mercury references listed below, including 1.5L three-cylinder DFI applications and 2.5L V-135, V-150, and V-175 DFI applications.\u003c\/p\u003e\n  \u003cp\u003eThe thermostat begins opening at 143°F (62°C) to help regulate engine temperature within the cooling system. Verify the complete engine model and serial-number range before ordering; horsepower alone does not confirm fitment.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReplacement type:\u003c\/strong\u003e Single aftermarket outboard thermostat\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOpening temperature:\u003c\/strong\u003e 143°F (62°C)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplicable brands:\u003c\/strong\u003e Mercury and Mariner\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct replacement when the listed model and serial conditions match\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThese manufacturer and aftermarket references are provided for identification and cross-reference purposes. Confirm the reference against your engine parts diagram before installation.\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\u003ePart Number\u003c\/th\u003e\n          \u003cth\u003eReference\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e833072002\u003c\/td\u003e\n\u003ctd\u003eReplacement reference for specified 1.5L DFI applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e833072003\u003c\/td\u003e\n\u003ctd\u003eReplacement reference for specified 2.5L DFI applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e833072004\u003c\/td\u003e\n\u003ctd\u003eReplacement reference for specified 1.5L DFI applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3536\u003c\/td\u003e\n\u003ctd\u003e143°F thermostat reference for specified 2.5L DFI applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-3537\u003c\/td\u003e\n\u003ctd\u003e143°F thermostat reference for specified 1.5L DFI applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC \/ Johnson-Evinrude\u003c\/td\u003e\n\u003ctd\u003e5005440\u003c\/td\u003e\n\u003ctd\u003eSeparate cross-reference shown in catalog research; verify application independently\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC \/ Johnson-Evinrude\u003c\/td\u003e\n\u003ctd\u003e378065, 393659, 434841, 508626\u003c\/td\u003e\n\u003ctd\u003eSeparate cross-reference shown in catalog research; verify application independently\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThe following applications are stated for the corresponding Mercury or Mariner thermostat references. Keep each engine family, displacement, horsepower, year, and serial-number condition together when checking fitment.\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 family\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eDisplacement\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eSerial range\u003c\/th\u003e\n          \u003cth\u003eApplicable reference\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e75 DFI, 3-cylinder\u003c\/td\u003e\n          \u003ctd\u003e75 HP\u003c\/td\u003e\n          \u003ctd\u003e1.5L\u003c\/td\u003e\n          \u003ctd\u003e2006 and newer\u003c\/td\u003e\n          \u003ctd\u003eOT980000 and up\u003c\/td\u003e\n          \u003ctd\u003e833072004 \/ Sierra 18-3537\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e90 DFI, 3-cylinder\u003c\/td\u003e\n          \u003ctd\u003e90 HP\u003c\/td\u003e\n          \u003ctd\u003e1.5L\u003c\/td\u003e\n          \u003ctd\u003e2004 and newer\u003c\/td\u003e\n          \u003ctd\u003eOT801000 and up\u003c\/td\u003e\n          \u003ctd\u003e833072004 \/ Sierra 18-3537\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003e115 DFI, 3-cylinder\u003c\/td\u003e\n          \u003ctd\u003e115 HP\u003c\/td\u003e\n          \u003ctd\u003e1.5L\u003c\/td\u003e\n          \u003ctd\u003e2004 and newer\u003c\/td\u003e\n          \u003ctd\u003eOT801000 and up\u003c\/td\u003e\n          \u003ctd\u003e833072004 \/ Sierra 18-3537\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003eV-135 DFI\u003c\/td\u003e\n          \u003ctd\u003e135 HP\u003c\/td\u003e\n          \u003ctd\u003e2.5L\u003c\/td\u003e\n          \u003ctd\u003e1998 and newer\u003c\/td\u003e\n          \u003ctd\u003eOG590000 and up\u003c\/td\u003e\n          \u003ctd\u003e833072003 \/ Sierra 18-3536\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003eV-150 DFI\u003c\/td\u003e\n          \u003ctd\u003e150 HP\u003c\/td\u003e\n          \u003ctd\u003e2.5L\u003c\/td\u003e\n          \u003ctd\u003e1998 and newer\u003c\/td\u003e\n          \u003ctd\u003eOG590000 and up\u003c\/td\u003e\n          \u003ctd\u003e833072003 \/ Sierra 18-3536\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n          \u003ctd\u003eV-175 DFI\u003c\/td\u003e\n          \u003ctd\u003e175 HP\u003c\/td\u003e\n          \u003ctd\u003e2.5L\u003c\/td\u003e\n          \u003ctd\u003e2001 and newer\u003c\/td\u003e\n          \u003ctd\u003eOT178500 and up\u003c\/td\u003e\n          \u003ctd\u003e833072003 \/ Sierra 18-3536\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The catalog data supports the applications above. Do not extend compatibility to other Mercury, Mariner, Johnson, or Evinrude models solely because they share a horsepower rating or a similar-looking thermostat.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct type\u003c\/dt\u003e\n    \u003cdd\u003eOutboard engine thermostat\u003c\/dd\u003e\n    \u003cdt\u003eOpening temperature\u003c\/dt\u003e\n    \u003cdd\u003e143°F (62°C)\u003c\/dd\u003e\n    \u003cdt\u003eApplication range\u003c\/dt\u003e\n    \u003cdd\u003eSpecified Mercury and Mariner 75–175 HP DFI outboards\u003c\/dd\u003e\n    \u003cdt\u003eEngine applications\u003c\/dt\u003e\n    \u003cdd\u003e1.5L three-cylinder DFI and 2.5L V-135, V-150, and V-175 DFI applications listed above\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDirect replacement for a matching application\u003c\/dd\u003e\n    \u003cdt\u003eProduct status\u003c\/dt\u003e\n    \u003cdd\u003eAftermarket replacement; not a Mercury Marine OEM component\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x 143°F (62°C) thermostat\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eThis listing is for a single thermostat. Gaskets, seals, thermostat covers, and multi-thermostat kits are not included unless separately stated in the order details.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eConfirm the engine model, displacement, horsepower, and complete serial-number range before beginning work.\u003c\/li\u003e\n    \u003cli\u003eSwitch off the engine, disconnect the battery where applicable, and allow the engine to cool completely.\u003c\/li\u003e\n    \u003cli\u003eLocate the thermostat housing or cylinder-head thermostat location for your specific engine.\u003c\/li\u003e\n    \u003cli\u003eRemove the housing or retaining hardware and note the original thermostat orientation.\u003c\/li\u003e\n    \u003cli\u003eClean the mating surfaces carefully and remove any damaged or contaminated sealing material.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement thermostat in the same orientation as the original part.\u003c\/li\u003e\n    \u003cli\u003eReuse or replace the required gasket or seal according to the engine service manual; no gasket or seal is included with this single thermostat listing.\u003c\/li\u003e\n    \u003cli\u003eReinstall the housing and tighten the fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n    \u003cli\u003eRun the engine using the appropriate water supply procedure for the outboard and check for leaks and normal temperature regulation.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat temperature does this thermostat open at?\u003c\/summary\u003e\n    \u003cp\u003eThis thermostat is specified to begin opening at 143°F (62°C).\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich engines does this thermostat fit?\u003c\/summary\u003e\n    \u003cp\u003eIt is listed for specified Mercury and Mariner 75, 90, and 115 HP three-cylinder 1.5L DFI engines, plus V-135, V-150, and V-175 2.5L DFI engines. Year and serial-number conditions vary by engine family, so use the compatibility table rather than horsepower alone.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre gaskets or seals included?\u003c\/summary\u003e\n    \u003cp\u003eNo. This product is a single thermostat. Required gaskets or seals must be reused only if serviceable or purchased separately according to the engine service manual.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM Mercury Marine thermostat?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement intended for the listed applications and reference numbers.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use the thermostat on another engine with the same horsepower?\u003c\/summary\u003e\n    \u003cp\u003eNot necessarily. Thermostat fitment depends on the engine family, displacement, model details, and serial-number range. Confirm all of those conditions before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat should I do if the replacement does not match my original part?\u003c\/summary\u003e\n    \u003cp\u003eDo not force or modify the part. Compare the thermostat and housing arrangement with the original and verify the engine serial range. Contact support before installation if the application or physical fit is unclear.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAllow the engine to cool completely before servicing the cooling system.\u003c\/li\u003e\n    \u003cli\u003eFollow the service manual for your exact engine when replacing the thermostat and sealing components.\u003c\/li\u003e\n    \u003cli\u003eVerify the model, displacement, horsepower, year, and serial number before purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement and is not manufactured or endorsed by Mercury Marine, Mariner, Sierra, or OMC.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended if you are not familiar with outboard cooling-system service.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMarine replacement parts\u003c\/strong\u003e — We provide aftermarket components for boat and outboard maintenance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-focused listings\u003c\/strong\u003e — Product information is organized around engine models, reference numbers, and fitment conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupport before installation\u003c\/strong\u003e — Contact our team if your engine details or replacement reference do not clearly match the information above.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723973562683,"sku":"23TH615","price":23.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Thermostat_for_Johnson-Evinrude_378065_393659_434841_437414_5005440___5005440_435491_833072003_18-3536_-_JLM_MARINE-8291316.jpg?v=1763038908"}],"url":"https:\/\/seasierra.com\/collections\/evinrude-2-stroke-outboard-marine-engine-parts-40-250hp.oembed","provider":"SeaSierra","version":"1.0","type":"link"}