Cat C15 6 Cylinder 15.2 L Diesel 550 hp Engine, 2006 US EPA Label, 9482 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller RTLO-20918B 18-Speed Manual Transmission, 20000 lb Front Axle, 46000 lb Rears, Meritor DT463 Drive Axles, 3.90:1 Axle Ratio, 66000 lb GVWR, Air Ride Cab, 425/65R22.5 Front Tires, 11R24.5 Rear Tires, Dual Steering Boxes, Neway AD Series Air Ride Suspension, 224 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel, Headache Rack, Lowboy Ramps, Dual Fuel Tanks