2025 Gmc Sierra 2025 Duramax Specs. Information about the 2025 gmc sierra, including introduction date, changes, specifications, pictures and other details about the 2025 sierra pickup truck. Detailed specs and features for the 2025 gmc sierra 1500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.

Find incentives, rebates, recalls, and warranty specifications. The new 2025 gmc sierra hd pickup truck pulls your world with turbocharged power and an impressive lineup of trims that includes the first ever denali ultimate.