2024 At4 2024 Duramax 2024. Detailed specs and features for the 2024 gmc sierra 1500 diesel at4 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type,. The gmc sierra 1500 at4x 4wd aev is the ultimate expression of the sierra combining.
The big news is the duramax diesel engine, with is surprisingly smooth and quiet. The sierra at4 has a standard 3.0l duramax turbo diesel engine with active thermal management for a range of environmental conditions, to push out 305.
