The most expensive part in this assembly is the Cover, Oil Element.
The Bolt (4r8) is the most widely applied product in the XV500 VIRAGO 1983 (D) USA OIL CLEANER ( two times ).
Some items from this specific schematic: Bolt (2h0), Element Assy, Oil Cleaner, Gasket (583) (nas), O-ring (583 Oil Drain Bolt).