{"product_id":"804295t-thermo-sensor-for-mercury-75hp-80hp-90hp-100hp-115hp-jlm-marine","title":"804295T Thermo Sensor for Mercury 75HP 80HP 90HP 100HP 115HP | JLM Marine","description":"\u003ch2\u003e804295T Thermo Sensor for Mercury 75HP 80HP 90HP 100HP 115HP Outboard Engine\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003ethermo sensor\u003c\/strong\u003e is designed to fit Mercury outboard engines ranging from \u003cstrong\u003e75HP to 115HP\u003c\/strong\u003e. Engineered for reliable temperature monitoring, it ensures your engine operates within safe thermal parameters, preventing overheating and potential damage.\u003c\/p\u003e\n\n\u003cp\u003eThis aftermarket replacement directly replaces Mercury Mariner OEM part number \u003cstrong\u003e804295T\u003c\/strong\u003e, providing a cost-effective solution without compromising performance or quality.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for Mercury OEM \u003cstrong\u003e804295T\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eFits multiple Mercury horsepower ratings: 75HP, 80HP, 90HP, 100HP, 115HP\u003c\/li\u003e\n  \u003cli\u003eEssential for accurate engine temperature regulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003ePart Number\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\u003e804295T\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003eModel\u003c\/th\u003e\n      \u003cth\u003eRated HP\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eOutboard\u003c\/td\u003e\n      \u003ctd\u003e75HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eOutboard\u003c\/td\u003e\n      \u003ctd\u003e80HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eOutboard\u003c\/td\u003e\n      \u003ctd\u003e90HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eOutboard\u003c\/td\u003e\n      \u003ctd\u003e100HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eOutboard\u003c\/td\u003e\n      \u003ctd\u003e115HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Part Number\u003c\/td\u003e\n      \u003ctd\u003e804295T\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Brand\u003c\/td\u003e\n      \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Type\u003c\/td\u003e\n      \u003ctd\u003eOutboard\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHorsepower Range\u003c\/td\u003e\n      \u003ctd\u003e75HP - 115HP\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cp\u003eYour purchase includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1 × Outboard Thermo Sensor\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisconnect the battery\u003c\/strong\u003e to ensure safety during installation.\u003c\/li\u003e\n  \u003cli\u003eLocate the existing thermo sensor on your Mercury outboard engine, typically mounted on the cylinder head or engine block.\u003c\/li\u003e\n  \u003cli\u003eCarefully disconnect the electrical connector from the old sensor.\u003c\/li\u003e\n  \u003cli\u003eUsing an appropriate wrench or socket, unscrew the old thermo sensor in a counterclockwise direction.\u003c\/li\u003e\n  \u003cli\u003eInspect the mounting hole and threads for debris or corrosion; clean if necessary.\u003c\/li\u003e\n  \u003cli\u003eApply a small amount of anti-seize compound to the threads of the new sensor (optional but recommended).\u003c\/li\u003e\n  \u003cli\u003eHand-thread the new \u003cstrong\u003e804295T thermo sensor\u003c\/strong\u003e into the mounting hole clockwise to avoid cross-threading.\u003c\/li\u003e\n  \u003cli\u003eTighten the sensor to the manufacturer's specified torque using a torque wrench.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical connector firmly, ensuring it clicks or locks into place.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and start the engine to verify proper operation.\u003c\/li\u003e\n  \u003cli\u003eMonitor the temperature gauge to confirm the sensor is reading correctly.\u003c\/li\u003e\n  \u003cli\u003eIf any warning lights appear or readings seem abnormal, shut down the engine and recheck connections.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this thermo sensor fits my Mercury engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Cross-reference your engine's horsepower (75HP, 80HP, 90HP, 100HP, or 115HP) with the compatibility table above. Verify your original part number is 804295T by checking your engine's parts diagram or existing sensor.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the symptoms of a failing thermo sensor?\u003c\/strong\u003e\u003cbr\u003e\nA: Common signs include erratic temperature gauge readings, engine overheating warnings, poor fuel efficiency, or the engine running hotter than normal. If you experience any of these, inspect and test the sensor.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the thermo sensor?\u003c\/strong\u003e\u003cbr\u003e\nA: Thermo sensors typically last many years under normal conditions. Replace it if you notice faulty temperature readings, during major engine maintenance, or as part of troubleshooting overheating issues.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this sensor myself, or do I need a professional?\u003c\/strong\u003e\u003cbr\u003e\nA: If you have basic mechanical skills and tools, you can install it yourself following the guide above. However, if you're unsure about torque specifications or electrical connections, professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: OEM vs. Aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nA: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n  \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":51981006766393,"sku":"23TS384","price":33.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_d127bac9-c1d6-4764-9bc4-594f7317e59b.jpg?v=1772414523","url":"https:\/\/jlmmarine.com\/es\/products\/804295t-thermo-sensor-for-mercury-75hp-80hp-90hp-100hp-115hp-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}