Cat C13 6 Cylinder 12.5 L Diesel Engine, 2004 US EPA Label, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, 36000 lb Rears, 48000.0 lb GVWR, Air Ride Cab, 68 in High Rise Sleeper Cab, Aluminum Front Wheels, 11R24.5, Flex Air Air Ride Suspension, 229 in Wheelbase, Dual Fuel Tanks