The Oil Pump is made up of components including this Pump Assy,oil which is the most expensive.
Parts such as the Oil Pump: Filter Assembly,engine Oil, Shim, Pump Assy,oil, O Ring(d:3.7,id:21.7) are included in the Gsx1100f 1993 (p) Zwitzerland (e18) Oil Pump parts fiche.
The seventeen Gsx1100f 1993 (p) Zwitzerland (e18) Oil Pump component parts are all listed in this schematic.