1990 Western Star 4900, Truck Tractor, Air Tanks, Fits to: Western Star 4900, (Used) 1990 Western Star 4900, AIR TANK- Side: Driver Left Side, Location: Bottom, Material: Steel, Dimensions: L=12", D=10", Front Ports: 2, Rear Ports: 2, Side Ports: 2, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Truck Year 1990, VIN 2WKPDCCH5LK928008, 2WKPDCCH5LK928008