Precision machined from aluminum for maximum performance, these pumps feature high capacity 32mm gears providing increased oil pressure, flow and volume. Packaged with our matching EMPI Polished Billet Aluminum Cover with a 3/8NPT threaded boss, 8mm Allen Head Cap Screw Bolts and gaskets. Pump is Full-Flow Ready, without an exit passage port. No need to thread the Oil Pump! To be used with Full-Flow Pump Cover ONLY.