Parts such as the Clutch Master Cylinder: Cap,master Cylind, Protector, Sw.assy.,clutch, Diaphragm are included in the Gl1500a Goldwing Aspencade 1994 (r) France / Kph Clutch Master Cylinder parts fiche.
On this parts fiche the Washer,oil Bolt is the most specified component.
The component with the lowest price in the CLUTCH MASTER CYLINDER schematic is the Screw,flat,4x12.