Horsepower 2024 At4 Gmc 6.6 Chevy. The 2024 gmc sierra 2500 hd at4x aev edition adds functional style from american expedition vehicles trove of aftermarket accessories in a production package. 2024 sierra 1500 specs (horsepower, torque, engine size, wheelbase), mpg and pricing by trim level.
Detailed specs and features for the 2024 gmc sierra 1500 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. Choose from either a gmc sierra 2500 hd or 3500 hd at4, and learn more about the vehicle specs, trims, and features available.