Cummins ISX12 400ST 6 Cylinder 11.9 L Ultra Low Sulfur Diesel 400 hp Engine, 2014 US EPA Label, 8997.8 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 178 in Wheelbase, Air Sliding 5th Wheel