Cummins ISX 6 Cylinder 15.0 L Diesel Engine, Engine Brake, Eaton Fuller Automatic Transmission, Double Differential Locks, 12350 lb Front Axle, 46000 lb Rears, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 186 in Wheelbase, Air Sliding 5th Wheel, Hour Meter Reads 17760