On this parts fiche the Screw Tcei M8x40 is the most specified component.
A sample from the products for the 009 Filters And Oil Pump include: Thermistor, Circlip, Screw Tcei M8x40, Gasket 10.5x17x2.
The Copper Gasket 11.9x8.2x2 is the lowest priced item on this 009 Filters And Oil Pump schematic.