Cat 6 Cylinder Diesel Engine, Eaton Fuller 13-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 204 in Wheelbase, PTO, Wet Kit, 14 ft Long x 4 ft High Steel Body, Manual Roll Tarp