Cat C13 6 Cylinder 12.5 L Diesel 525 hp Engine, 2016 US EPA Label, Eaton Fuller 18-Speed Manual Transmission, 13220 lb Front Axle, 40000 lb Rears, 53220 lb GVWR, 315/80R22.5 Front Tires, 11R24.5 Rear Tires, Double Frame, Hendrickson Air Ride Suspension, PTO, 5 Section Boom, Out and Down Outriggers, 18 ft 4 in x 101 in Bed