{"product_id":"805223t-air-charge-temperature-sensor-for-mercruiser-volvo-penta-v6-v8-mpi-jlm-marine","title":"805223T Air Charge Temperature Sensor for Mercruiser Volvo Penta V6 V8 MPI | JLM Marine","description":"\u003ch2\u003eAir Charge Temperature Sensor for Mercruiser Volvo Penta V6 V8 MPI – Replaces 805223T\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eIntake Air Temperature (IAT) Flame Arrestor Sensor Assembly\u003c\/strong\u003e is designed for \u003cstrong\u003eMerCruiser and Volvo Penta marine engines\u003c\/strong\u003e, including V6 and V8 MPI models. It provides accurate air temperature readings to optimize fuel delivery and engine performance in demanding marine environments.\u003c\/p\u003e\n\n\u003cp\u003eThis aftermarket sensor directly replaces \u003cstrong\u003eMercury MerCruiser 805223T\u003c\/strong\u003e, \u003cstrong\u003eVolvo Penta 3854527\u003c\/strong\u003e, and \u003cstrong\u003eSierra Marine 18-7702\u003c\/strong\u003e, offering broad compatibility across most Volvo Penta and MerCruiser models.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFits MerCruiser V6 \u0026amp; V8 engines including 350, 454, 496, and 502 MPI\u003c\/li\u003e\n  \u003cli\u003eCompatible with 7.4L (1994–2000) and 8.1L (2005–Current) models\u003c\/li\u003e\n  \u003cli\u003eFlame arrestor sensor assembly for reliable intake air temperature monitoring\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 MerCruiser\u003c\/td\u003e\n      \u003ctd\u003e805223T\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n      \u003ctd\u003e3854527\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSierra Marine\u003c\/td\u003e\n      \u003ctd\u003e18-7702\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.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\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\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMerCruiser\u003c\/td\u003e\n      \u003ctd\u003eV6 \u0026amp; V8 350, 454, 496, 502 MPI\u003c\/td\u003e\n      \u003ctd\u003eMost Volvo Penta and MerCruiser Models\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMerCruiser\u003c\/td\u003e\n      \u003ctd\u003e7.4L\u003c\/td\u003e\n      \u003ctd\u003e1994–2000\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMerCruiser\u003c\/td\u003e\n      \u003ctd\u003e8.1L\u003c\/td\u003e\n      \u003ctd\u003e2005–Current\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n      \u003ctd\u003eMarine Engines\u003c\/td\u003e\n      \u003ctd\u003eMost Models\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\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\u003eType\u003c\/td\u003e\n      \u003ctd\u003eIntake Air Temperature Flame Arrestor Sensor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEngine Type\u003c\/td\u003e\n      \u003ctd\u003eVOLVO PENTA MerCruiser Marine Engines\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Number\u003c\/td\u003e\n      \u003ctd\u003e805223T\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 package includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1 × Air Charge Temperature Sensor (IAT Flame Arrestor Sensor Assembly)\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 prevent electrical shorts during installation.\u003c\/li\u003e\n  \u003cli\u003eLocate the existing \u003cstrong\u003eIAT sensor\u003c\/strong\u003e on the flame arrestor or intake manifold of your MerCruiser or Volvo Penta engine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisconnect the electrical connector\u003c\/strong\u003e from the old sensor by pressing the release tab and pulling gently.\u003c\/li\u003e\n  \u003cli\u003eRemove the old sensor by unscrewing it counterclockwise from the flame arrestor assembly or mounting location.\u003c\/li\u003e\n  \u003cli\u003eInspect the mounting threads and clean any debris or corrosion to ensure a proper seal.\u003c\/li\u003e\n  \u003cli\u003eInstall the new sensor by threading it clockwise into the mounting location. Hand-tighten initially to avoid cross-threading.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorque to manufacturer specifications\u003c\/strong\u003e (typically 8–12 ft-lbs) using a torque wrench—do not over-tighten.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical connector to the new sensor until you hear or feel a click, confirming a secure connection.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and turn the ignition to the \"ON\" position (do not start the engine yet).\u003c\/li\u003e\n  \u003cli\u003eCheck for any \u003cstrong\u003ewarning lights or error codes\u003c\/strong\u003e on the instrument panel.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and verify that it runs smoothly without hesitation or rough idle.\u003c\/li\u003e\n  \u003cli\u003ePerform a brief test run and monitor engine performance to confirm proper sensor operation.\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 sensor fits my engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Cross-reference your original part number (MerCruiser 805223T, Volvo Penta 3854527, or Sierra 18-7702) with the table above. Verify your engine model (V6\/V8 MPI, 7.4L 1994–2000, or 8.1L 2005–Current) against the compatibility list.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the symptoms of a failing air charge temperature sensor?\u003c\/strong\u003e\u003cbr\u003e\nA: Common signs include rough idle, poor fuel economy, hesitation during acceleration, black smoke from the exhaust, or check engine lights\/error codes related to air intake temperature.\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: Installation is straightforward if you have basic mechanical skills and tools. However, professional installation is recommended to ensure proper torque settings, electrical connections, and to avoid damage to the flame arrestor assembly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the air charge temperature sensor?\u003c\/strong\u003e\u003cbr\u003e\nA: IAT sensors typically last many years under normal conditions. Replace immediately if you experience symptoms of failure or if diagnostic codes indicate sensor malfunction. Inspect annually during routine maintenance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM or aftermarket part?\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":51981005193529,"sku":"23SE188","price":13.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Ae29f88f4dd0e4c63a49e29056358c9c5V.webp?v=1772455159","url":"https:\/\/jlmmarine.com\/es\/products\/805223t-air-charge-temperature-sensor-for-mercruiser-volvo-penta-v6-v8-mpi-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}