Cummins ISX15 6 Cylinder 15.0 L Ultra Low Sulfur Diesel 485 hp Engine, 2013 US EPA Label, Requires Diesel Exhaust Fluid, 18498 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller RTLO-18918B 18-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, Paccar Drive Axles, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, Paccar Air Ride Suspension, 230 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel, Dual Fuel Tanks