Diesel Exhaust Fluid (DEF) Heater for 2010-2011 Chevrolet Express 2500 & More - Dorman 904-376

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