(Used) 2021 Western Star 5700, AIR TANK- Side: Driver Left Side, Location: Bottom, Material: Steel, Dimensions: L=20", D=11". Front Ports: 9, Side Ports: 3, Rear Ports: 9, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921