Cummins ISX15 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, 16963.5 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FOM-16E310C-LAS 10-Speed Automatic Transmission, 12000 lb Front Axle, 40000 lb Rears, Dana DSP41 Drive Axles, 3.42:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, 11R22.5 Front Tires, 445/50R22.5 Super Singles Rear Tires, Paccar 4-Bag Air Ride Suspension, 189 in Wheelbase, Air Sliding 5th Wheel