Detroit Series 60 6 Cylinder 14.0 L Diesel 515 hp Engine, 2007 US EPA Label, CARB Compliant, Engine Brake, Eaton Fuller 13-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 46000 lb Rears, 58000 lb GVWR, Aluminum Wheels, 11R22.5, Double Frame, Air Assist Front Suspension, Air Ride Suspension, 216 in Wheelbase, PTO, 12800 kg Capacity, Center Mounted, 35 ft - 4 Section Boom, Dual Controls, Out and Down Outriggers, Air Sliding 5th Wheel