Cummins 6 Cylinder Diesel Engine, Air Conditioner, Cruise Control, Power Windows, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, Air Ride Cab, Aluminum Front Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Airliner Air Ride Suspension, 170 in Wheelbase, Dual Fuel Tanks