The Washer-plain,6mm,blac is the lowest priced item on this Water Pump schematic.
This schematic depicts all components used in the Ksf250-a7 Mojave250 1993 Usa Canada Water Pump partslist.
Some items from this specific schematic: Washer,plain, Seal-mechanical, Nut,6m/m, Bolt-flanged-small.