Mack MP8 6 Cylinder 12.8 L Diesel 505 hp Engine, 2013 US EPA Label, Positive Air Shutoff, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Differential Lock, 6623 kg Front Axle, 22680 kg Rears, 29303 kg GVWR, Air Ride Cab, 60 in High Rise Sleeper Cab, Bunk Heater, Aluminum Wheels, 11R24.5, Air Ride Suspension, 285 in Wheelbase, Wet Kit, Hydraulic Oil Cooler, Air Sliding 5th Wheel, Dual Fuel Tanks, Hour Meter Reads 31457