Cat 3406 Diesel 455 hp Engine, US EPA Label, Rockwell 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Aluminum Front Wheels, 11R24.5, Air Ride Suspension, 204 in Wheelbase, Neustar 18 ft Long x 0 ft 64 in High Steel Body, Manual Roll Tarp, Remote End Gate & Hoist Control