The lowest price component in this Oil Filter parts-list fiche is the Washer,10.2mm.
The Bolt,flange,6x22 is the most widely applied product in the GL1200A GOLDWING ASPENCADE 1986 (G) USA CALIFORNIA OIL FILTER ( four times ).
Some items from this specific schematic: O-ring,46x2, Bolt,flange,6x22, Dowel,pin,8x14, O-ring,89x4.5.