Cummins B6.7 6 Cylinder 6.7 L Diesel 220 hp Engine, 2017 US EPA Label, Requires Diesel Exhaust Fluid, Engine Brake, Allison 2500 Automatic Transmission, 12000 lb Front Axle, 20000 lb Rears, 32000 lb GVWR, 275/80R22.5, Spring Suspension, 276 in Wheelbase, 26 ft x 102 in Wide x Body, Liftgate