Cummins ISX 6 Cylinder 15.0 L Diesel 500 hp Engine, 2007 US EPA Label, Positive Air Shutoff, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Differential Lock, 13200 lb Front Axle, 46000 lb Rears, 59200 lb GVWR, Air Ride Cab, 51 in Mid Roof Sleeper Cab, Aluminum Wheels, 11R24.5, Hendrickson Air Ride Suspension, 219 in Wheelbase, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks, Hour Meter Reads 19717