{"product_id":"dorman-904-632-diesel-exhaust-fluid-def-heater","title":"Dorman 904-632 Diesel Exhaust Fluid (DEF) Heater","description":"\u003ch2\u003eOverview of Dorman 904-632 Diesel Exhaust Fluid Heater\u003c\/h2\u003e\u003cp\u003eThe Dorman 904-632 Diesel Exhaust Fluid (DEF) Heater is designed specifically for heavy-duty Chevrolet and GMC trucks. This component ensures optimal DEF system performance in cold conditions by maintaining fluid temperature, helping to reduce emissions and improve engine efficiency.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Chevrolet Silverado 2500 HD, 3500 HD and GMC Sierra 2500 HD, 3500 HD models\u003c\/li\u003e\n\u003cli\u003eInside diameter of 4.3 inches for precise fitment\u003c\/li\u003e\n\u003cli\u003eDurable black plastic housing for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eEquipped with two electrical connectors and terminals for reliable power connection\u003c\/li\u003e\n\u003cli\u003eO-ring type inlet and outlet fittings for secure sealing\u003c\/li\u003e\n\u003cli\u003eIncludes mounting hardware for straightforward installation\u003c\/li\u003e\n\u003cli\u003eElectronic level sensor integration for accurate DEF monitoring\u003c\/li\u003e\n\u003cli\u003eHeight measures 9 inches to fit designated vehicle spaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 904-632 DEF Heater is engineered to maintain the temperature of diesel exhaust fluid in colder climates, preventing crystallization and ensuring proper dosing in emission control systems. Its black plastic housing provides durability and resistance to environmental factors. The heater features two electrical connectors with female and male terminals, supporting a secure and stable electrical connection. The inlet and outlet fittings utilize O-ring seals to prevent leaks and maintain system integrity. This specific fit part is designed for Chevrolet Silverado 2500 HD and 3500 HD, as well as GMC Sierra 2500 HD and 3500 HD trucks, ensuring compatibility and ease of replacement.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents DEF freezing in low temperatures\u003c\/li\u003e\n\u003cli\u003eMaintains proper DEF fluid flow for emission compliance\u003c\/li\u003e\n\u003cli\u003eReduces risk of DEF system fault codes and engine derate\u003c\/li\u003e\n\u003cli\u003eSupports electronic level sensor accuracy for fluid monitoring\u003c\/li\u003e\n\u003cli\u003eHelps avoid costly repairs related to DEF system failure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman 904-632 DEF Heater, ensure the electrical connectors are properly aligned and securely attached to avoid connection issues. Verify that the O-ring seals on both inlet and outlet fittings are intact and seated correctly to prevent leaks. The included mounting hardware should be used to secure the heater firmly in place, maintaining proper positioning within the DEF system. It is recommended to inspect the DEF lines and sensors during installation to ensure overall system integrity.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance for emission control components. The 904-632 DEF Heater undergoes rigorous quality checks to ensure durability and functionality. Please refer to Dorman's official warranty policy for specific coverage details on this part.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52111224340661,"sku":"BKKY-904-632","price":243.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_904632_Fro.jpg?v=1775160520","url":"https:\/\/www.partcatalog.com\/products\/dorman-904-632-diesel-exhaust-fluid-def-heater","provider":"PartCatalog","version":"1.0","type":"link"}