Dorman 904-632 diesel exhaust fluid (def) heater for the 2010-2011 Chevrolet Silverado 2500 HD V8 6.6L and other vehicles warms the diesel exhaust fluid in the DEF system. This Dorman DEF heater replaces a factory unit that often fails from fluid intrusion.
- Modified design that addresses the fluid-intrusion failure point of the factory heater
- Additional protection from fluid intrusion
- Cyclical heater element fatigue testing on each design
- Plastic housing with O-ring inlet and outlet fittings
Quick facts
- Part: Dorman 904-632 diesel exhaust fluid (def) heater
- Fits: 2010-2011 Chevrolet Silverado 2500 HD V8 6.6L and other vehicles
- Material: Plastic
- Condition: New
A failing DEF heater can show up as a DEF warning light or a fault message. Before you replace this heater, rule out wiring, connector and other DEF system faults, since they can set off similar warnings. The truck takes one heater.
Fits
The 2010-2011 Chevrolet Silverado 3500 HD V8 6.6L and the 2010-2011 GMC Sierra 2500 HD V8 6.6L take this heater too, along with more vehicles. Look up your own truck in the "Vehicles it fits" section to see whether it is covered.
Specifications
Fit and size
- Inside diameter: 4.3 in
- Height: 9 in
- Quantity per vehicle: 1
- Electrical connectors: 2, female
Build and materials
- Housing material: plastic
- Inlet and outlet fittings: O-ring
- Wire insulation: PVC
- Condition: New
- Country of origin: China
In the box
One heater assembly, one cap and mounting hardware. A hose is not included.
Interchange: 5D-1001L
F01C600307 · F01C600335 · 22783125 · 22902619 · 23379346 · 84412929 · EM1206URH
This part cross-references / interchanges with the following part numbers:
F01C600307, F01C600335, 5D-1001L, 22783125, 22902619, 23379346, 84412929, EM1206URH
Frequently Asked Questions
Does the Dorman 904-632 fit a 2010-2011 Chevrolet Silverado 2500 HD V8 6.6L?
Yes. Dorman 904-632 fits the 2010-2011 Chevrolet Silverado 2500 HD V8 6.6L, with one heater per truck. Other trucks it fits are in the "Vehicles it fits" section.
What comes with the 904-632 heater besides the heater itself?
Dorman 904-632 comes with one heater assembly, one cap and mounting hardware. A hose is not included.
What connectors and fittings does this DEF heater have?
This DEF heater has two female electrical connectors and O-ring fittings at the inlet and outlet. The housing is plastic and the wire insulation is PVC.
How is this replacement different from the factory DEF heater?
The factory heater often fails from fluid intrusion. This OE FIX version modifies the OEM design and adds protection against fluid intrusion.
Is the heater element on 904-632 tested?
Yes. Each 904-632 design goes through cyclical heater element fatigue testing.
