{"product_id":"40-974-graded-sensor-air-temperature-fit-thermo-king-md-200-rac-4-md-mt-ta-1100","title":"40-974 Graded Sensor Air Temperature Fit Thermo King MD-200 RAC-4 MD-MT TA-1100","description":"\u003ch2\u003eAir Temperature Sensor for Thermo King\u003c\/h2\u003e\u003cp\u003eThis 40-974 graded sensor air temperature component is a direct replacement sensor designed to monitor and relay air temperature readings within Thermo King refrigeration units, ensuring accurate climate control and system performance. Built as a service-grade part, it matches the functional specifications of OEM reference 40-974 for dependable operation in demanding transport refrigeration environments.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis 40-974 graded sensor air temperature unit measures ambient air temperature and sends the signal to the Thermo King controller, allowing the system to regulate cooling and heating cycles precisely. It is intended for technicians and fleet operators maintaining Thermo King MD-200, RAC-4, MD-MT, and TA-1100 units, and serves as a direct replacement for the original sensor. The 40-974 graded sensor air temperature construction is built for long service life in vibration-prone, temperature-extreme mounting locations.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacement sensor with OEM cross-reference 40-974\u003c\/li\u003e\n\u003cli\u003eGraded sensing element for consistent temperature response\u003c\/li\u003e\n\u003cli\u003eDirect-fit electrical connector matches factory harness\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant housing protects against moisture and road salts\u003c\/li\u003e\n\u003cli\u003eWide operating temperature range suited for reefer applications\u003c\/li\u003e\n\u003cli\u003ePlug-and-play installation without calibration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFor Thermo King MD-200\u003c\/li\u003e\n\u003cli\u003eFor Thermo King RAC-4\u003c\/li\u003e\n\u003cli\u003eFor Thermo King MD-MT\u003c\/li\u003e\n\u003cli\u003eFor Thermo King TA-1100\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplaces failed sensors in trailer and truck refrigeration units\u003c\/li\u003e\n\u003cli\u003eUsed in routine preventive maintenance of Thermo King systems\u003c\/li\u003e\n\u003cli\u003eIdeal for mobile cold-chain fleets requiring accurate temperature logging\u003c\/li\u003e\n\u003cli\u003eFits in evaporator or return-air sensor locations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40-974\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGraded air temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Systems\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermo King MD-200, RAC-4, MD-MT, TA-1100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOEM-style plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this sensor work if my unit's wiring harness has a different connector? \u003cstrong\u003eA:\u003c\/strong\u003e This sensor uses the factory-style connector for the listed Thermo King models, but verify your harness connector matches before ordering, as late-production units may vary.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I know if this sensor has failed? \u003cstrong\u003eA:\u003c\/strong\u003e Typical symptoms include erratic temperature display, compressor short-cycling, or fault codes on the controller. Testing resistance across the sensor terminals and comparing to the spec table will confirm.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Part Outfitters","offers":[{"title":"Default Title","offer_id":46611854852282,"sku":"ZZ3F05199","price":59.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/2476\/1786\/files\/s-l1600_81b72451-7ca0-491b-97b5-df11400fea4a.jpg?v=1789011370","url":"https:\/\/partoutfitters.com\/products\/40-974-graded-sensor-air-temperature-fit-thermo-king-md-200-rac-4-md-mt-ta-1100","provider":"Part Outfitters","version":"1.0","type":"link"}