Cummins X15 6 Cylinder 15 L Diesel 500 hp Engine, 2012 US EPA Label, Webasto Engine Coolant Heater, 22926 Engine hrs, Engine Brake, Eaton Fuller RTLO-16913A 13-Speed Manual Transmission, Differential Lock, Detroit DA-RT-40.0-4 Drive Axles, 3.73:1 Axle Ratio, Air Ride Cab, 60 in Flat Top Sleeper Cab, Aluminum Wheels, 315/80R22.5 Front Tires, 11R22.5 Rear Tires, Air Assist Front Suspension, Airliner Air Ride Suspension, 244 in Wheelbase, PTO, Wet Kit, Air Sliding 5th W ...