2025 Duramax Towing Capacity 4×4. There are four engine options for the 2025 gmc sierra 1500: Here are the engines you’ll find with each trim level of the 2025 gmc sierra 1500, as well as the max towing capacity.
2025 chevrolet silverado 1500 zr2 duramax vehicle type: Whether you’re looking to move a large rv.