Cummins 6 Cylinder Diesel Engine, Requires Diesel Exhaust Fluid, 7760 Engine hrs, Automatic Transmission, 10000 lb Front Axle, 17500 lb Rears, 25999 lb GVWR, 11R22.5 Front Tires, 11R22.5 Rear Tires, Spring Suspension, 255 in Wheelbase, 24 ft x 102 in Wide x 102 in High Body, Liftgate