The seventeen Vz800z Boulevard M50 2009 (k9) Usa California (e03 E33) Oil Pump component parts are all listed in this schematic.
On this parts fiche the Bolt is the most specified component.
Parts such as the Oil Pump: Pin(5x18), Bolt, Strainer,engine Oil, Valve Assy,oil Relief are included in the Vz800z Boulevard M50 2009 (k9) Usa California (e03 E33) Oil Pump parts fiche.