DORMAN 904-632 DIESEL EXHAUST FLUID (DEF) HEATER 2011 GM 6.6L DURAMAX LML

Detailed Applications

Product Specifications

OE Numbers

The Dorman 904-632 Diesel Exhaust Fluid (DEF) Heater is a robust and reliable replacement part specifically designed for the 2011 GM 6.6L Duramax LML engine. Engineered with an upgraded design, this DEF heater addresses common failures associated with fluid intrusion in factory components, ensuring enhanced durability and performance.

This innovative OE FIX solution not only restores your vehicle’s DEF heater performance but also seamlessly matches the fit and function of the original equipment part, providing a hassle-free installation experience. Each unit undergoes stringent testing, including cyclical heater element fatigue tests, to guarantee optimal reliability under various operating conditions.

Crafted with quality materials, the Dorman DEF Heater features a sturdy black plastic housing and is equipped with multiple electrical connectors, designed for specific compatibility with your vehicle. The addition of mounting hardware ensures that this heater can be installed conveniently and securely.

The heater assembly comes complete with one cap, and while it does not include a hose, it is built to accommodate standard fitting requirements thanks to its O-ring inlet and outlet types. The electronic level sensor enhances performance monitoring, a vital feature especially in demanding driving conditions.

With the backing of a dedicated engineering team in the United States, the Dorman 904-632 DEF Heater stands as a trustworthy choice for vehicle owners seeking to maintain the efficiency and functionality of their diesel engines. Compatible with various GM OE numbers, this product transcends mere replacement, offering peace of mind and unwavering performance for your Duramax LML engine. Upgrade your vehicle’s DEF system with this high-quality heater and experience improved reliability on the road.