Gmc Trucks 2024 Diesel. Discover the 2024 gmc sierra 2500hd & 3500hd denali and the first ever denali ultimate, with 30,800 lbs max towing, premium comfort, and more. Detailed specs and features for the 2024 gmc sierra 1500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,.

Fastest pickup trucks at a glance. Unlike ford and ram, if you want the gmc sierra hd with a diesel engine, you’re stuck with one option: