Parts such as the Transmission: Washer,20.5x30x1,stee, Washer-lock, Gear,input 3rd,18t, Gear,driveshaft,4th,27t are included in the Kdx250-a1 Kdx250 1980 Usa California Transmission parts fiche.
On this parts fiche the Circlip is the most specified component.
The most reasonably priced component used on the Kdx250-a1 Kdx250 1980 Usa California Transmission is the Washer-plain.