{"product_id":"motorad-4047-90-engine-coolant-thermostat","title":"Motorad 4047-90 Engine Coolant Thermostat","description":"\u003ch2\u003eHeavy Duty Cooling Control\u003c\/h2\u003e\u003cp\u003eMotorad Heavy Duty Thermostat 4047-90 is an engine coolant thermostat built for demanding cooling systems. It is specified at 190 degrees F and uses OEM-quality materials and processes for consistent temperature control.\u003c\/p\u003e\u003cp\u003eCompatible With a wide range of heavy-duty and specialty applications, including Freightliner, Kenworth, Peterbilt, and Western Star models. Fits 2000-2020 Volkswagen Volksbus, N\/A; Fits 2000-2015 Dodge Viper, N\/A; Fits 2000-2015 Pierce Mfg. Inc. Arrow XT, N\/A.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e190 degree F opening temperature for controlled coolant flow.\u003c\/li\u003e\n\u003cli\u003eCopper case and wax compound for quick response to coolant temperature changes.\u003c\/li\u003e\n\u003cli\u003eManufactured to OEM specifications and processes.\u003c\/li\u003e\n\u003cli\u003eBuilt with OEM-quality materials and safety standards by an OE supplier.\u003c\/li\u003e\n\u003cli\u003eSealing flange outside diameter: 2.87 in; bypass diameter: 2.87 in; flange thickness: 0.27 in.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThe Motorad 4047-90 thermostat regulates coolant flow to help maintain stable operating temperature in engine cooling systems. Its copper case and wax element react quickly as coolant temperature changes, while the heavy-duty construction supports service in commercial trucks, buses, fire apparatus, and other demanding platforms. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., 172286, 182286) for the same application.\u003c\/p\u003e\u003cp\u003eMotorad’s Heavy Duty Thermostat line focuses on OE-style temperature control for vehicles that need consistent thermal management under load. The 4047-90 follows OEM specifications and processes, making it a direct replacement choice for applications that call for a 190 degree thermostat.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Solve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine running too cool or too warm due to thermostat wear.\u003c\/li\u003e\n\u003cli\u003eDelayed coolant circulation after cold starts.\u003c\/li\u003e\n\u003cli\u003eTemperature instability under heavy-duty operating conditions.\u003c\/li\u003e\n\u003cli\u003eCooling system performance issues caused by an incorrect thermostat rating.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the required temperature rating and housing dimensions before installation. This thermostat does not include an installation tool. Use the vehicle’s specified coolant service procedure and inspect the sealing surfaces before assembly. Confirm fitment against the application list for Freightliner, Kenworth, Peterbilt, and Western Star models, including the listed Volkswagen Volksbus and Dodge Viper applications.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eManufactured by an OE supplier using OEM-quality materials, safety standards, specifications, and processes for dependable cooling-system service.\u003c\/p\u003e","brand":"Motorad","offers":[{"title":"Default Title","offer_id":53342681071797,"sku":"BFNG-4047-90","price":35.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/TZ_404790_Fro.jpg?v=1789797767","url":"https:\/\/www.partcatalog.com\/products\/motorad-4047-90-engine-coolant-thermostat","provider":"PartCatalog","version":"1.0","type":"link"}