Cummins Diesel Engine, Requires Diesel Exhaust Fluid, Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, 25999 lb GVWR, 11R22.5, Air Ride Suspension, 256 in Wheelbase, Supreme Reefer Unit, 24 ft x 102 in Wide x Body, Mezzanine Floor, Curbside Door, Liftgate