Cummins ISB 6 Cylinder 6.7 L Diesel 220 hp Engine, Requires Diesel Exhaust Fluid, 12686.7 Engine hrs, Allison 2200 Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, 5.56:1 Axle Ratio, 26000 lb GVWR, 11R22.5, Airliner Air Ride Suspension, 270 in Wheelbase, 26 ft x 102 in Wide x 102 in High Body, Liftgate