Some items from this specific schematic: Plug, Straight Screw(2nl), Cover, Oil Element, Ball (1j7), By-pass Valve Assy.
The component with the lowest price in the OIL CLEANER schematic is the Ball (1j7).
This Oil Cleaner diagram displays the required parts for the Xj650 Maxim 1980 (a) Usa Oil Cleaner.