6 Cylinder 15.6 L Diesel Engine, US EPA Label, Positive Air Shutoff, Engine Brake, Eaton Fuller FO18E318B-MXP Automatic Transmission, Double Differential Locks, 13220 lb Front Axle, 40000 lb Rears, Meritor RT-46-160 Drive Axles, 3.91:1 Axle Ratio, 53220 lb GVWR, Air Ride Cab, 60 in High Rise Sleeper Cab, Thermo King TriPak Auxiliary Power Unit, Aluminum Wheels, 11R24.5, Airliner Air Ride Suspension, 244 in Wheelbase, Hour Meter Reads 12381