Cat CT13 6 Cylinder Diesel Engine, 2011 US EPA Label, 17217 Engine hrs, Engine Brake, Automatic Transmission, Double Differential Locks, 18000 lb Front Axle, 40000 lb Rears, 58000.0 lb GVWR, Air Ride Cab, Aluminum Wheels, 315/80R22.5 Front Tires, 11R22.5 Rear Tires, 2 Air Lift Pusher Axles, Hendrickson Haulmaax Suspension, 230 in Wheelbase, OX Bodies 18 ft 4 in Long x 4 ft 10 in High Body, Electric Roll Tarp