The component with the lowest price in the OIL PUMP schematic is the Bolt,flange 6x14.
The O-ring,14.7x3.7 is the most widely applied product in the VT700C SHADOW 1984 (E) USA CALIFORNIA OIL PUMP ( two times ).
The Oil Pump is made up of components including this Pump Assy,oil which is the most expensive.