The lowest price component in this Oil Pump Conversion Kit parts-list fiche is the Clamp (6e5).
The 115eth 1987 Oil Pump Conversion Kit consists of thirty-four pieces with the Oil Pump Assy being the most expensive.
Some items from this specific schematic: Bolt (669), Bolt(6h0), Gear, Drive, Bush, Bimetal Formed(6r3).