Cummins ISX15 415 hp Engine • 2013 US EPA Label • Eaton Fuller Automated Transmission • 12350 lb Front Axle • 20000 lb Rears • 32350 lb GVWR • Engine Brake • 163 in Wheelbase • Air Suspension • Aluminum Outer Wheels • 275/80R22.5 Front Tires • 295/75R22.5 Rear Tires • Dual Steering Boxes • Dual Fuel Tanks