Horsepower 2024 At4 Gmc 6.6 Price. Detailed specs and features for the 2024 gmc sierra 1500 diesel at4 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain. 2024 gmc sierra 2500 at4x aev.
2024 gmc sierra 1500 at4 in sterling metallic (a $495 color option) 2024 gmc sierra 1500 at4 specs. New wheel choices and unique paint colours can be specified for 2024, while power retractable assist steps are available on more models.