Cummins 6 Cylinder Diesel Engine, 24351 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-16210C 10-Speed Manual Transmission, 13200 lb Front Axle, 38000 lb Rears, Dana DSP40 Drive Axles, 3.70:1 Axle Ratio, 51200 lb GVWR, Air Ride Cab, 72 in Mid Roof Sleeper Cab, Thermo King Auxiliary Power Unit, Aluminum Wheels, 285/75R24.5, Air Ride Suspension, 230 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks