(Used) 2004 Mack MR688S, AIR TANK- Side: Driver Left Side, Location: Bottom, Material: Steel, Dimensions: Length=36", Height=11", Rear Ports: 4, Side Ports: 1, For more information about this item, give us a call.We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921