Models Straight-Four Engine 2D Drawing 6 196 2 Needle Sleeve Bearing 1 32 1 Piston Wrist Pin (Gudgeon Pin) 0 21 0 Piston Compression Ring 0 26 0 Piston Head 0 79 0 Tutorials View all Mechanical Movement Animation of Straight-Four Engine 0 0 Exploded View of Straight-Four Engine 0 0 Straight-Four Engine Assembly 0 0 Straight-Four Engine Head 0 0 Needle Sleeve Bearing 0 0 Piston Wrist Pin (Gudgeon Pin) 0 0