Cummins ISB 6 Cylinder 6.7 L Diesel 220 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, Engine Brake, Automatic Transmission, 10000 lb Front Axle, 17500 lb Rears, 25999 lb GVWR, 11R22.5, Air Ride Suspension, 271 in Wheelbase, 24 ft x 102 in Bed, Liftgate