Cummins 6 Cylinder Diesel Engine, 12080 Engine hrs, Air Conditioner, Cruise Control, Spicer 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 156 in Wheelbase, Air Sliding 5th Wheel