{"title":"Thermostatic Switches","description":"\u003cp\u003eAll Pro Truck Parts stocks thermostatic switches for heavy-duty truck air conditioning systems. Thermostatic switches cycle the AC compressor on and off based on evaporator temperature — a failed switch can cause the evaporator to freeze up or the compressor to run continuously. We carry replacement thermostatic switches for the most common Class 6 through Class 8 truck AC systems.\u003c\/p\u003e\n \n\u003cp\u003eVisit our \u003ca href=\"https:\/\/help.allprotruckparts.com\"\u003ehelp center\u003c\/a\u003e if you need help finding the right thermostatic switch for your truck.\u003c\/p\u003e","products":[{"product_id":"ac-parts-2601372-thermostatic-switch-freightliner-classic","title":"Seltec Valeo VCC83000036 Evaporator Temperature Probe – Freightliner 12V","description":"\u003cp\u003eDirect-fit evaporator for Freightliner 12V, marked 2601372. This 12V thermistor monitors evaporator refrigerant temperature to regulate A\/C system cooling cycles. Used in Freightliner Business Class M2 and FL-Series models from 2003-2009.\u003c\/p\u003e\n\n\u003ch2\u003eSigns You Need a New Evaporator Temperature Probe\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEvaporator coil freezes up despite refrigerant charge\u003c\/li\u003e\n\u003cli\u003eA\/C runs continuously without proper cycling\u003c\/li\u003e\n\u003cli\u003eAir conditioning not reaching target temperature\u003c\/li\u003e\n\u003cli\u003eThermostat fails to respond to temperature changes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eSeltec\/Valeo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eVCC83000036\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eEvaporator Temperature Probe (Thermistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTerminal Type\u003c\/th\u003e\n\u003ctd\u003e2-pin connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Compatibility\u003c\/th\u003e\n\u003ctd\u003eFreightliner M2-106\/112, FL50-70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreightliner OEM:\u003c\/strong\u003e VCCT83000036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeltec\/Valeo:\u003c\/strong\u003e VCC83000036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as:\u003c\/strong\u003e 110650, 128308, 1359, 850-9325, 938-1009, BD15600, RF8201000572\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis evaporator temperature probe fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFreightliner Business Class M2-106\/112 (2003-2009)\u003c\/li\u003e\n\u003cli\u003eFreightliner FL50, FL60, FL70 (2003-2009)\u003c\/li\u003e\n\u003cli\u003eAll with factory A\/C thermistor systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eVerify your engine configuration and A\/C control module before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Valeo Seltec","offers":[{"title":"Default Title","offer_id":51191399350557,"sku":"2601372","price":211.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/THERMISTOR-FREIGHTLINER-VCCT-83000036.jpg?v=1776788005"},{"product_id":"ac-parts-2601378-thermostatic-switch-freightliner-century-class","title":"Behr BOA80-946-00-079 Fixed Thermostatic Switch – Freightliner 12V 16in","description":"\u003cp\u003eKeep Freightliner 12V 16in cooling with the 2601378 thermostatic switch. This 12V fixed-set switch regulates A\/C compressor clutch cycling by sensing evaporator temperature. Cuts in at 35°F, cuts out at 28°F with a 7°F clutch cycling range. 16-inch capillary tube delivers precise temperature sensing to the switch mechanism in Freightliner, Peterbilt, and Western Star heavy-duty trucks.\u003c\/p\u003e\n\n\u003ch2\u003eSigns You Need a New Thermostatic Switch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA\/C compressor runs continuously without cycling\u003c\/li\u003e\n\u003cli\u003eEvaporator coil freezes up and ice blocks refrigerant flow\u003c\/li\u003e\n\u003cli\u003eAir conditioning produces inconsistent cooling cycles\u003c\/li\u003e\n\u003cli\u003eA\/C does not shut off at the thermostat set point\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eBehr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eBOA80-946-00-079\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eFixed (Preset) Thermostatic Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCapillary Tube Length\u003c\/th\u003e\n\u003ctd\u003e16 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSet Temperature Range\u003c\/th\u003e\n\u003ctd\u003eCut-in 35°F, Cut-out 28°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eClutch Cycle Range\u003c\/th\u003e\n\u003ctd\u003e7°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRefrigerant Type\u003c\/th\u003e\n\u003ctd\u003eR12\/R134a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Compatibility\u003c\/th\u003e\n\u003ctd\u003eFreightliner Century, Columbia, FL50-FL80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBehr OEM:\u003c\/strong\u003e BOA80-946-00-079, BOA80-946-00-109\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreightliner:\u003c\/strong\u003e 1315\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMack:\u003c\/strong\u003e A63001400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCummins\/Signature:\u003c\/strong\u003e N83-323053\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as:\u003c\/strong\u003e 1-6291, 1-9224, 128280, 210-9176, 850-9176, ABPN83323053, BD1080, PTAC1315\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis thermostatic switch fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFreightliner Century, Classic, Columbia (2001-2010)\u003c\/li\u003e\n\u003cli\u003eFreightliner FLD120 (2001-2010)\u003c\/li\u003e\n\u003cli\u003ePeterbilt, Western Star, and International applications with matching spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eVerify your A\/C system type and capillary tube routing before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Behr","offers":[{"title":"Default Title","offer_id":51191399416093,"sku":"2601378","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/Freightliner-Trucks-AC-Thermostat-_E2_80_93-Preset-BOA8094600079-2601378.jpg?v=1776788008"},{"product_id":"ac-parts-2601369-thermostatic-switch-freightliner-cascadia-113","title":"Seltec Valeo VCCT1000903U Temperature Sensor – Freightliner Cascadia 12V","description":"\u003cp\u003eKeep Freightliner Cascadia 12V cooling with the 2601369 temperature sensor. This 12V thermistor probe monitors A\/C evaporator temperature to regulate compressor engagement and cooling cycles. Used in newer Freightliner Cascadia 113 and Cascadia 125 models from 2010-2020, providing precise temperature feedback to the vehicle's HVAC control module.\u003c\/p\u003e\n\n\u003ch2\u003eSigns You Need a New Temperature Sensor\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEvaporator coils freeze over despite refrigerant charge\u003c\/li\u003e\n\u003cli\u003eA\/C compressor cycles on and off erratically\u003c\/li\u003e\n\u003cli\u003eAir conditioning not reaching target temperature setting\u003c\/li\u003e\n\u003cli\u003eDashboard climate control display shows intermittent readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eSeltec\/Valeo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eVCCT1000903U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eEvaporator Temperature Sensor (Thermistor Probe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTerminal Type\u003c\/th\u003e\n\u003ctd\u003e2-pin connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Compatibility\u003c\/th\u003e\n\u003ctd\u003eFreightliner Cascadia 113, Cascadia 125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel Years\u003c\/th\u003e\n\u003ctd\u003e2010-2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreightliner OEM:\u003c\/strong\u003e VCCT1000903U\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeltec\/Valeo:\u003c\/strong\u003e VCC T1000903U\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as:\u003c\/strong\u003e 11-0661, 128310, 1323, 850-9327, 938-1021, PTAC1323\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis temperature sensor fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFreightliner Cascadia 113 (2010-2020)\u003c\/li\u003e\n\u003cli\u003eFreightliner Cascadia 125 (2010-2020)\u003c\/li\u003e\n\u003cli\u003eFreightliner Coronado (2010-2020)\u003c\/li\u003e\n\u003cli\u003eAll with OEM HVAC control system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eVerify your engine model year and HVAC control module before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Valeo Seltec","offers":[{"title":"Default Title","offer_id":51191399448861,"sku":"2601369","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/THERMISTOR-FREIGHTLINER-VCC-T1000903U-2601369.jpg?v=1776788010"},{"product_id":"ac-parts-2601380-thermostatic-switch-mack-320-series","title":"Kysor 2601380 Fixed Thermostatic Switch – Mack 12V 24in Capillary","description":"\u003cp\u003eThe 2601380 thermostatic switch is built for Mack 12V 24in Capillary. This 12V preset-temperature switch regulates A\/C compressor clutch cycling by measuring evaporator air temperature via a 24-inch capillary tube. Cuts in at 39.5°F, cuts out at 31°F, providing precise temperature control in Mack, Peterbilt, and Western Star heavy-duty truck air conditioning systems.\u003c\/p\u003e\n\n\u003ch2\u003eSigns You Need a New Thermostatic Switch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA\/C compressor clutch runs continuously without proper cycling\u003c\/li\u003e\n\u003cli\u003eEvaporator freezes up and blocks refrigerant flow\u003c\/li\u003e\n\u003cli\u003eAir conditioning cycling is inconsistent or erratic\u003c\/li\u003e\n\u003cli\u003eA\/C does not shut off at thermostat set point\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eKysor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e2601380\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eFixed (Preset) Thermostatic Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCapillary Tube Length\u003c\/th\u003e\n\u003ctd\u003e24 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSet Temperature Range\u003c\/th\u003e\n\u003ctd\u003eCut-in 39.5°F, Cut-out 31°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRefrigerant Type\u003c\/th\u003e\n\u003ctd\u003eR12\/R134a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine Compatibility\u003c\/th\u003e\n\u003ctd\u003eMack 320, 4700, 4900, 5700 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMack OEM:\u003c\/strong\u003e A22-23640-000, A46-3122-000, A46-3122-030\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKysor:\u003c\/strong\u003e 2399003, 2399014\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJohn Deere:\u003c\/strong\u003e RE305730\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRanco:\u003c\/strong\u003e N83-323010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Dot:\u003c\/strong\u003e RD5-4531-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as:\u003c\/strong\u003e 1-4183, 13-4202, 128285, 210-936, 323010, 404145, 650476, 850-9181, BD1070, ABPN83323010, PTAC1332\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis thermostatic switch fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMack CH, CL, CM, CS 320 Series (2001-2020)\u003c\/li\u003e\n\u003cli\u003eMack 4700, 4900, 5700 Series (2001-2020)\u003c\/li\u003e\n\u003cli\u003ePeterbilt 320 Series, 4700 Series, 4900 Series\u003c\/li\u003e\n\u003cli\u003eWestern Star and other OEM match applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eVerify your truck model and A\/C system configuration before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Kysor","offers":[{"title":"Default Title","offer_id":51191399481629,"sku":"2601380","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/Fixed-Preset-Thermostats-2601380.jpg?v=1776788015"},{"product_id":"ac-parts-2601394-thermostatic-switch-freightliner-heavy-duty-trucks","title":"Red Dot RD4125-48 Rotary Thermostatic Switch – 12\/24V 48in Capillary","description":"\u003cp\u003eBuilt for Class 8 A\/C service, the 2601394 thermostatic switch ships ready to install. This 12\/24V adjustable-temperature switch is designed for heavy-duty truck and equipment A\/C systems requiring operator temperature control. The 48-inch capillary tube provides extended sensor reach, allowing flexible evaporator placement. Operator turns the knob to set desired cycling temperature between 26°F and 52°F.\u003c\/p\u003e\n\n\u003ch2\u003eSigns You Need a New Thermostatic Switch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA\/C compressor clutch cycles erratically or fails to engage\u003c\/li\u003e\n\u003cli\u003eEvaporator coil freezes up regardless of switch position\u003c\/li\u003e\n\u003cli\u003eAir conditioning does not respond to temperature adjustments\u003c\/li\u003e\n\u003cli\u003eA\/C runs continuously and cannot be modulated via knob control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eRed Dot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eRD4125-48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eRotary Variable Thermostatic Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12\/24V (bi-voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCapillary Tube Length\u003c\/th\u003e\n\u003ctd\u003e48 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAdjustable Temperature Range\u003c\/th\u003e\n\u003ctd\u003e26°F to 52°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCut-in\/Cut-out Cycle\u003c\/th\u003e\n\u003ctd\u003eCuts in 34°F, cuts out 26°F (at nominal setting)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRefrigerant Type\u003c\/th\u003e\n\u003ctd\u003eR12\/R134a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eControl Type\u003c\/th\u003e\n\u003ctd\u003eKnob (manual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Dot OEM:\u003c\/strong\u003e RD4125-48, RD-5-4125-48, BD1035\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as:\u003c\/strong\u003e MVA1-4185, 9533N399, A45-1094\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis rotary thermostatic switch fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFreightliner FLT, FLC, FL Series (all with rotary knob control)\u003c\/li\u003e\n\u003cli\u003eInternational, Mack, Peterbilt heavy-duty trucks\u003c\/li\u003e\n\u003cli\u003eRefrigerated transport vehicles requiring adjustable A\/C control\u003c\/li\u003e\n\u003cli\u003eAgricultural and industrial equipment with 48-inch capillary routing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eVerify capillary tube routing distance and electrical voltage before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Red Dot","offers":[{"title":"Default Title","offer_id":51191399547165,"sku":"2601394","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/THERMOSTATIC-SWITCH-ROTARY-9533-N399-A45-1094.jpg?v=1776788018"},{"product_id":"ac-parts-2601392-thermostatic-switch-freightliner-heavy-duty-trucks","title":"Red Dot RD4125-36 Rotary Thermostatic Switch – 12\/24V 36in Capillary","description":"\u003cp\u003eRestore cabin cooling with the 2601392 thermostatic switch. This 12\/24V adjustable-temperature switch enables operator control of A\/C compressor cycling via a knob-style interface. The 36-inch capillary tube accommodates standard evaporator installations in heavy-duty trucks and commercial equipment. Turning the knob adjusts the cut-in temperature across a 33–45°F range with a 5°F clutch cycling band.\u003c\/p\u003e\n\n\u003ch2\u003eSigns You Need a New Thermostatic Switch\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA\/C compressor fails to cycle or cycles erratically\u003c\/li\u003e\n\u003cli\u003eEvaporator ices up even at highest temperature setting\u003c\/li\u003e\n\u003cli\u003eAir conditioning not responding to operator knob adjustments\u003c\/li\u003e\n\u003cli\u003eA\/C stuck in continuous run mode and cannot be modulated\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eRed Dot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eRD4125-36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eRotary Variable Thermostatic Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12\/24V (bi-voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCapillary Tube Length\u003c\/th\u003e\n\u003ctd\u003e36 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAdjustable Temperature Range\u003c\/th\u003e\n\u003ctd\u003e33°F to 45°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eClutch Cycle Range\u003c\/th\u003e\n\u003ctd\u003e5°F band\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRefrigerant Type\u003c\/th\u003e\n\u003ctd\u003eR12\/R134a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eControl Type\u003c\/th\u003e\n\u003ctd\u003eKnob (manual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Dot OEM:\u003c\/strong\u003e RD4125-36, RD-4125-36P, RD-5-4125-36P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreightliner:\u003c\/strong\u003e RNCA10-6581-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMack:\u003c\/strong\u003e A22-15817A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso known as:\u003c\/strong\u003e 9533N178, MVA1-1048, 71R2250\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis rotary thermostatic switch fits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFreightliner Century, Classic, Columbia, FLD120 (with knob control)\u003c\/li\u003e\n\u003cli\u003eMack CH, CL, CM, CS Series\u003c\/li\u003e\n\u003cli\u003eInternational, Peterbilt, and other heavy-duty trucks\u003c\/li\u003e\n\u003cli\u003eRefrigerated and specialty vehicle A\/C systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eVerify your capillary tube length and electrical system voltage (12V or 24V) before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Red Dot","offers":[{"title":"Default Title","offer_id":51191400071453,"sku":"2601392","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/Rotary-Thermostats-2601392.jpg?v=1776788023"}],"url":"https:\/\/www.allprodiesel.net\/collections\/thermostatic-switches.oembed","provider":"All Pro Truck Parts","version":"1.0","type":"link"}