Cummins ISM 6 Cylinder 10.8 L Diesel Engine, 14408 Engine hrs, Air Conditioner, Cruise Control, Engine Brake, Allison Automatic Transmission, 12000 lb Front Axle, 20000 lb Rears, 32000 lb GVWR, Air Ride Cab, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 155 in Wheelbase