Cummins ISX 450ST 6 Cylinder 15.0 L Diesel 450 hp Engine, 2014 US EPA Label, Requires Diesel Exhaust Fluid, 8925 Engine hrs, Engine Brake, Eaton Fuller 13-Speed Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350 lb GVWR, Air Ride Cab, 72 in Mid Roof Sleeper Cab, Bunk Beds, Aluminum Wheels, 295/75R22.5, Air Ride Suspension, 250 in Wheelbase, PTO, Air Sliding 5th Wheel, Dual Fuel Tanks