2025 Gmc 3500hd Duramax Diesel. It's likely this new diesel engine will improve upon the sierra. General motors has announced a customer satisfaction program (n232427750) addressing an issue with the piston oil lubrication valve in certain 2025 model year chevrolet silverado.

Detailed specs and features for the 2025 gmc sierra 3500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. Gale starts by saying, “this is data that you won’t find on a spec sheet!” this new engine will be available in the 2025 chevrolet silverado and gmc sierra hd trucks and will boast 470.