Cummins ISX15 6 Cylinder 15 L Ultra Low Sulfur Diesel Engine, 2013 US EPA Label, 19845 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Double Differential Locks, 12350 lb Front Axle, 46000 lb Rears, 58350 lb GVWR, Air Ride Cab, 56 in Mid Roof Sleeper Cab, Bunk Heater, Aluminum Wheels, 11R22.5, Hendrickson Air Ride Suspension, 228 in Wheelbase, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks