Cummins ISB 6 Cylinder 6.7 L Ultra Low Sulfur Diesel 200 hp Engine, Requires Diesel Exhaust Fluid, 5922 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Allison 2500 6-Speed Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, Detroit DARS19.02 Drive Axles, 5.13:1 Axle Ratio, 39000 lb GVWR, Air Ride Cab, 11R22.5 Front Tires, 11R22.5 Rear Tires, Spring Suspension, 270 in Wheelbase, Durabody 26 ft x 102 in Wide x 97 in High Body, Liftgate