Navistar DT570 6 Cylinder 9.3 L Diesel 310 hp Engine, 9372 Engine hrs, Exhaust Brake, Eaton Fuller 10-Speed Transmission, 13220 lb Front Axle, 40000 lb Rears, Meritor MP2014X4DFR Drive Axles, 4.88:1 Axle Ratio, 53220 lb GVWR, Air Ride Cab, 11R22.5, Air Ride Suspension, 171 in Wheelbase, PTO, 7.4 ton Capacity, Front Mounted, 6 ft 7 in - 65 ft 7 in 5 Section Boom, Dual Controls, Out and Down Outriggers, 5th Wheel