On this parts fiche the Pin,knock is the most specified component.
A sample from the products for the Oil Pump / Primary Drive Gear include: Spro,oilpumpdrive, Collar,o Ring, Dowel,pin,8x14, Bolt,hex.,6x8.
The lowest price component in this Oil Pump / Primary Drive Gear parts-list fiche is the Bolt,hex 6x8.