On this parts fiche the Bolt, Hexagon Socket Head is the most specified component.
The Oil Pump is made up of components including this Pipe, Delevery 5 which is the most expensive.
Parts such as the Oil Pump: Collar, Distance, Bolt, Hexagon Socket Head, Strainer Housing Assy, Pipe, Delevery 5 are included in the Fz1-s 2006 3c37 Europe 1e3c3-300ea Oil Pump parts fiche.