Cummins ISB 6 Cylinder 6.7 L Ultra Low Sulfur Diesel 240 hp Engine, Requires Diesel Exhaust Fluid, 6521.7 Engine hrs, Air Conditioner, Cruise Control, Allison 2500 Automatic Transmission, 12000 lb Front Axle, 21000 lb Rears, Detroit DA-F-12.0-3 Drive Axles, 5.56:1 Axle Ratio, Air Ride Cab, 11R22.5, Airliner Air Ride Suspension, 270 in Wheelbase, Liftgate