Cummins 6 Cylinder 6.7 L Ultra Low Sulfur Diesel Engine, US EPA Label, Air Conditioner, Cruise Control, Power Windows, Exhaust Brake, Automatic Transmission, 7250 lb Front Axle, 13500 lb Rears, 4.88:1 Axle Ratio, 19500 lb GVWR, 225/70R19.5 Front Tires, 225/70R19.5 Rear Tires, Spring Suspension, 168 in Wheelbase, 2015 12 ft 8 in Body, Ingersoll-Rand 2475 Gasoline Air Compressor