Cummins B6.7 220 6 Cylinder 6.7 L Diesel 220 hp Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, 26000 lb GVWR, 11R22.5, Airliner Air Ride Suspension, 272 in Wheelbase, Supreme 26 ft x 102 in Wide x 112 in High Body, Walk-Up Ramp, Liftgate