{"product_id":"marine-engine-coolant-temperature-sensor-for-mercruiser-3-0l-4-3l-5-0l-805218t-805218","title":"Marine Engine Coolant Temperature Sensor for MerCruiser 3.0L 4.3L 5.0L 805218T 805218","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eMarine engine coolant temperature sensor for MerCruiser 3.0 L, 4.3 L and 5.0 L engines — the sender that drives the dash gauge, replacing MerCruiser 805218 and 805218T. It also cross-references OMC and Volvo Penta 3850397, Sierra 18-7600, CDI Electronics E13-0009, Crusader 47002 and Mallory 9-42402. A failing sender reads low or not at all, so the gauge sits flat while the engine overheats, or it reads high and sends you chasing a cooling problem that is not there. This sensor is a drop-in replacement for MerCruiser 805218T with the same thread and connector, so no adapter or rewiring is needed.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications \u0026amp; Attributes\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eNew \/ New with tags\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eEngine Coolant Temperature Sensor \/ Sender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eCoolant temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eEngine Type\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eMerCruiser sterndrive and inboard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eDisplacement\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e3.0 L, 4.3 L, 5.0 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eFitting\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eDirect replacement, original thread and connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eQuantity\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eTaiwan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003ePackaging\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e15 x 18 x 3 cm (5.9 x 7.1 x 1.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOEM Cross Reference\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eBrand\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eOEM Part Numbers\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eMerCruiser\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e805218, 805218T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eOMC\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e3850397\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e3850397\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eSierra\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e18-7600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eCDI Electronics\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eE13-0009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eCrusader\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e47002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eMallory\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e9-42402\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engines\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eBrand\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eDisplacement\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eMerCruiser\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e3.0 L\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eCoolant temperature sender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eMerCruiser\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e4.3 L\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eCoolant temperature sender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eMerCruiser\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e5.0 L\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eCoolant temperature sender\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eOMC\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e3850397 cross-reference\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eVerify against your engine serial number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e3850397 cross-reference\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eVerify against your engine serial number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eConfirm the original part number on your engine or in your parts diagram before ordering — MerCruiser used more than one sender thread across the 3.0 L, 4.3 L and 5.0 L range.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eComponent\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:6px\"\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eEngine Coolant Temperature Sensor (805218T)\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCondition \u0026amp; Warranty\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\n\u003cthead\u003e\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\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eNew \/ New with tags\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px\"\u003ePackaging\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003eSealed retail packaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eBefore You Buy\u003c\/h2\u003e\n\u003cul style=\"list-style:none\"\u003e\n\u003cli\u003eVerify the original part number on your engine before ordering — 805218 and 805218T are not interchangeable on every model\u003c\/li\u003e\n\u003cli\u003eCheck the gauge wiring and the sender's single wire for corrosion first — a bad ground mimics a failed sensor\u003c\/li\u003e\n\u003cli\u003eUse a thread sealant rated for coolant on the sender, and do not overtighten into the cast housing\u003c\/li\u003e\n\u003cli\u003eTest the new sender before refilling: warm the engine and confirm the gauge climbs smoothly rather than jumping\u003c\/li\u003e\n\u003cli\u003e30-Day Easy Returns\u003c\/li\u003e\n\u003cli\u003eFree Worldwide Shipping\u003c\/li\u003e\n\u003cli\u003eOEM Quality Without the Markup\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"XRmarine","offers":[{"title":"Default Title","offer_id":67789783040043,"sku":"24TS443","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/0415\/7227\/files\/10_0eec9688-3cd2-4e26-98e7-52458f898ee8.jpg?v=1791445845","url":"https:\/\/xrmarineparts.com\/products\/marine-engine-coolant-temperature-sensor-for-mercruiser-3-0l-4-3l-5-0l-805218t-805218","provider":"XRmarine","version":"1.0","type":"link"}