Cummins ISB 6 Cylinder 6.7 L Ultra Low Sulfur Diesel 220 hp Engine, 2013 US EPA Label, Requires Diesel Exhaust Fluid, 9581.3 Engine hrs, Air Conditioner, Cruise Control, Allison 2100 Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, 5.88:1 Axle Ratio, 26000 lb GVWR, 11R22.5 Front Tires, 11R22.5 Rear Tires, Spring Suspension, 270 in Wheelbase, 26 ft x 102 in Wide x 104 in High Body, Liftgate