With a quantity of three pieces, the Washer(6.5x18x1) is the most used part in the REAR FENDER diagram.
Parts such as the Rear Fender: Nut, Nut, Lock Washer, Washer (5.5x16x1.2) are included in the Gs450e 1982 (z2) General Export (e01) Rear Fender parts fiche.
The lowest price component in this Rear Fender parts-list fiche is the Washer(6.5x18x1).