2024 Gmc Sierra 2024 Duramax Specs. Max power is 305 horsepower, a 10 percent increase over the 277 horsepower in the lm2. Detailed specs and features for the 2024 gmc sierra 3500hd diesel denali ultimate including.

Max power is 305 horsepower, a 10 percent increase over the 277 horsepower in the lm2. Research the 2024 gmc sierra 1500 diesel with our expert reviews and ratings.