Cummins 6 Cylinder Ultra Low Sulfur Diesel Engine, Requires Diesel Exhaust Fluid, 8419 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Allison Automatic Transmission, 12000 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 5.29:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, Aluminum Front Wheels, 275/80R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 274 in Wheelbase, 18 ft 8 in x 102 in Bed, Liftgate