2024 Gmc Sierra 3500hd Specs. Research the 2024 gmc sierra 3500hd diesel with our expert reviews and ratings. Detailed specs and features for the 2024 gmc sierra 3500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.
Discover the 2024 gmc sierra 2500hd & 3500hd denali and the first ever denali ultimate, with 30,800 lbs max towing, premium comfort, and more. The increased power has increased the towing capacity across the sierra 2500hd and 3500hd lineup, with a higher max rating of 22,500 pounds at the hitch.