The engine displacement is 3.91, with a power coverage range of 91 heavy-duty trucks, mid to high grade intercity bus engineering machinery, and marine main and auxiliary machinery products. Due to their advanced economic components, durability, and environmental safety, they have gained domestic competitiveness. From the perspective of this vehicle's unit, Dongfeng Cummins will rely on Cummins' global production experience. Cummins is highly praised by foreign users for its quality and strong management support, and manufacturing continues to increase its competitiveness, For a well equipped engine and