This schematic depicts all components used in the Cn250 Helix 1994 (r) Italy Kph Oil Pump partslist.
With a quantity of two pieces, the Bolt,flange,6x28 is the most used part in the OIL PUMP diagram.
The most reasonably priced component used on the Cn250 Helix 1994 (r) Italy Kph Oil Pump is the Screw,pan 3x12.