{"product_id":"dorman-904-643-diesel-exhaust-fluid-def-heater","title":"Dorman 904-643 Diesel Exhaust Fluid (DEF) Heater","description":"\u003ch2\u003eOverview of Dorman Diesel Exhaust Fluid Heater 904-643\u003c\/h2\u003e\u003cp\u003eThe Dorman Diesel Exhaust Fluid (DEF) Heater 904-643 is designed specifically for Ford Transit models, including Transit-150, Transit-250, Transit-350, and Transit-350 HD. This DEF heater ensures optimal fluid temperature for efficient emission control in cold conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD\u003c\/li\u003e\n\u003cli\u003eSpecific fitment for precise installation\u003c\/li\u003e\n\u003cli\u003eBlack plastic housing with a 4.3-inch inside diameter\u003c\/li\u003e\n\u003cli\u003eIncludes one electrical connector with seven terminals\u003c\/li\u003e\n\u003cli\u003eO-ring type inlet and outlet fittings for secure sealing\u003c\/li\u003e\n\u003cli\u003eElectronic level sensor integrated\u003c\/li\u003e\n\u003cli\u003eMounting hardware included for convenience\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe Dorman 904-643 Diesel Exhaust Fluid Heater is engineered to maintain DEF at optimal temperatures, preventing freezing and ensuring proper emission system function. The heater features a durable black plastic housing measuring 10 inches in height, designed to withstand harsh under-hood environments. It includes a single female electrical connector with seven male terminals, providing reliable electrical connectivity. The inlet and outlet fittings utilize O-ring seals to prevent leaks and maintain system integrity. This specific fit part is tailored for Ford Transit models, ensuring compatibility and ease of installation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents DEF freezing in cold weather conditions\u003c\/li\u003e\n\u003cli\u003eMaintains proper DEF temperature for emission system efficiency\u003c\/li\u003e\n\u003cli\u003eReduces risk of emission system faults related to DEF heater failure\u003c\/li\u003e\n\u003cli\u003eEnsures compliance with emission control standards\u003c\/li\u003e\n\u003cli\u003eSupports reliable operation of Ford Transit diesel engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Dorman 904-643 DEF Heater, ensure the electrical connector is securely attached and the O-ring seals are properly seated to prevent leaks. Verify compatibility with your specific Ford Transit model before installation. The included mounting hardware facilitates a straightforward replacement process. It is recommended to inspect the DEF lines and connectors for damage during installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 904-643 DEF Heater undergoes rigorous quality control to ensure proper fit and function. Please refer to Dorman's warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52111224406197,"sku":"BKKY-904-643","price":243.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_904643_Fro.jpg?v=1775160520","url":"https:\/\/www.partcatalog.com\/products\/dorman-904-643-diesel-exhaust-fluid-def-heater","provider":"PartCatalog","version":"1.0","type":"link"}