2024 Gmc Denali 2500hd Diesel Specs. View detailed specs, features and options for the 2024 gmc sierra 2500hd 4wd crew cab 172 denali at u.s. We've tested a sierra 2500hd denali with the diesel engine, which returned 17 mpg on the highway.
See what power, features, and amenities you’ll get for the money. Detailed specs and features for the 2024 gmc sierra 2500hd pro including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain.