Dorman - OE Solutions Diesel Exhaust Fluid (DEF) Heater P/N:904-393

Diesel Exhaust Fluid Heater

• The factory DEF heater on certain vehicles often fails from fluid intrusion. This Dorman OE FIX solution modifies the OEM design to address this failure point and increase reliability.
• Upgraded replacement - this diesel exhaust fluid (DEF) heater features additional protection from fluid intrusion
• Restores performance - designed to match the fit and function of the original equipment part
• Thoroughly tested - each design undergoes cyclical heater element fatigue testing
• Trustworthy quality - backed by team of engineers in the United States