The lowest price component in this Water Pump parts-list fiche is the Bolt,flanged,6x45.
Parts such as the Water Pump: Pin,dowel,3x14, Gasket,pump Cover (nas), O Ring,7mm, Seal-mechanical are included in the Kaf620-c4 Mule 1998 Usa Water Pump parts fiche.
On this parts fiche the Bolt,flanged,6x45 is the most specified component.