Cummins ISX 6 Cylinder 15 L Ultra Low Sulfur Diesel 425 hp Engine, 5781.3 Engine hrs, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 13200 lb Front Axle, 34000 lb Rears, 47200 lb GVWR, Air Ride Cab, 62 in Mid Roof Sleeper Cab, 275/70R22.5 Front Tires, 275/70R22.5 Rear Tires, 4-Bag Air Ride Suspension, 246 in Wheelbase, Dual Fuel Tanks