{"product_id":"4336659-82-180-thermostat-fit-for-cummins-n14-isx-m11-ism-pai-181887","title":"4336659 82℃ 180℉ Thermostat Fit for Cummins N14\/ISX\/M11\/ISM PAI 181887","description":"\u003ch2\u003eThermostat for Cummins N14\/ISX\/M11\/ISM\u003c\/h2\u003e\u003cp\u003eThis 82℃ (180℉) thermostat is a direct replacement thermostat engineered for Cummins heavy-duty engines, referencing OEM cross-reference numbers 4336659 and 181887, and it regulates engine coolant temperature to maintain optimal operating conditions. Designed for the demands of commercial trucking, this thermostat ensures consistent thermal management for reliable engine performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis thermostat is a cooling system component that opens and closes to maintain the engine at its ideal 82℃\/180℉ operating temperature. It is built to match the specifications required for Cummins N14, ISX, M11, and ISM engines, serving as a dependable replacement for worn or stuck-open thermostats. The unit ensures the engine warms up quickly and stays within the correct temperature range for efficient combustion and reduced emissions.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecisely calibrated to open at 82℃ (180℉) for consistent engine temperature control.\u003c\/li\u003e\n\u003cli\u003eConstructed with corrosion-resistant materials for long service life in harsh coolant environments.\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specifications for reliable sealing and flow regulation.\u003c\/li\u003e\n\u003cli\u003eIncludes the wax-pellet actuation mechanism for accurate and repeatable thermal response.\u003c\/li\u003e\n\u003cli\u003eCompatible with standard cooling system pressures found in heavy-duty diesel applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Cummins N14\u003c\/li\u003e\n\u003cli\u003efor Cummins ISX\u003c\/li\u003e\n\u003cli\u003efor Cummins M11\u003c\/li\u003e\n\u003cli\u003efor Cummins ISM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed thermostat during routine cooling system maintenance on Class 8 trucks.\u003c\/li\u003e\n\u003cli\u003eInstalling in over-the-road tractors to prevent engine overheating on long hauls.\u003c\/li\u003e\n\u003cli\u003eUsed in fleet maintenance shops to restore proper warm-up and operating temperature in heavy-duty diesel engines.\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\u003eOpening Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e82℃ \/ 180℉\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4336659, 181887\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eN14, ISX, M11, ISM\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 thermostat fit my Cummins ISX if the engine has a different serial number? \u003cstrong\u003eA:\u003c\/strong\u003e The 4336659\/181887 cross-reference covers the standard thermostat housing for these engine families, but always verify the gasket surface and housing diameter against your specific unit before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What happens if I use a thermostat with the wrong temperature rating? \u003cstrong\u003eA:\u003c\/strong\u003e Using a thermostat with a different rating can cause the engine to run too cold or too hot, leading to poor fuel economy, increased wear, or overheating. This unit is calibrated specifically for 82℃\/180℉ operation.\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":46612198686906,"sku":"ZZ3F03292","price":48.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/2476\/1786\/files\/s-l1600_30b42008-a8c3-444a-9272-f263912bd4e0.jpg?v=1789016052","url":"https:\/\/partoutfitters.com\/products\/4336659-82-180-thermostat-fit-for-cummins-n14-isx-m11-ism-pai-181887","provider":"Part Outfitters","version":"1.0","type":"link"}