The Clamp (337-81328-00) is the lowest priced item on this Crankcase - Cylinder schematic.
A sample from the products for the Crankcase - Cylinder include: Holder, Screw, Pan Head, Clamp (337-81328-00), Screw, Pan Head.
This part-list fiche shows all the components that make up the Rd200 1974 Usa Crankcase - Cylinder .