Duramax FAQ

Additional Resources


Featured Duramax Tech:

Allison 1000 6.6L Duramax V-8 Allison/Duramax Combination

Allison 1000 Transmission - The Allison 1000 five and six speed transmission has been the only automatic available mated to the Duramax diesel; specs & ratios here.

Common Duramax Problems - No engine is without its quirks, and the Duramax is no exception. Fortunately, most problems can be avoided by simply understanding their causes.

Horsepower & Torque by Model Year - Chart showing rated horsepower and torque, broken down by model year and engine variation (LB7, LLY, LBZ, LMM, LML).

Chevy Colorado and GMC Canyon diesel 6.2 General Motors diesel 6.5 General Motors diesel

2.8L Duramax Inline 4 Cylinder - For the 2016 model year, General Motors has added the 2.8L Duramax I-4 turbodiesel to the mid-size Chevrolet Colorado & GMC Canyon lineup.

6.2L Detroit/GM Diesel Specs - The 6.2L GM diesel was designed by Detroit diesel. The engine, introduced in 1982, was designed primarily to maximize fuel economy.

6.5L Detroit/GM Diesel Specs - The 6.5L GM diesel was an evolution of the 6.2L, designed to compete with the competitor's more powerful diesel options of the time period.

GMC Sierra 1500 diesel Duramax turbodiesel V-8 GMC TopKick medium duty truck

4.5L Duramax Concept - The 4.5L Duramax LMK was introduced as a possible option for the Silverado and Sierra 1500 models.

Duramax VIN Decoding - Easily identify which Duramax diesel your truck is equipped with by looking at your vehicle's VIN number.

7.8L Duramax LG4 Specs - Essentially an Isuzu 6H series, the 7.8L Duramax is an inline 6 turbodiesel optional in 2003 to 2009 medium duty truck applications.