Gmc 2024 Sierra 2500hd. Detailed specs and features for the 2024 gmc sierra 2500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,. The 2024 gmc sierra hd is the best in its class, with the power of an advanced diesel engine and the utility of the latest tailgate and trailering technologies.

General motors officially unveiled the fully refreshed 2024 gmc sierra hd last october, revealing an updated exterior, an overhauled interior, a new trim level. Compare pricing, specs, key features and more.