Cummins 6 Cylinder Diesel Engine, 36730 Engine hrs, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 295/75R22.5, Air Ride Suspension, Air Sliding 5th Wheel, Dual Fuel Tanks