A sample from the products for the Camshaft/valve include: Shim,tappet (1.60, Shim,tappet (1.27, Shim,tappet (2.05, Seal Valve Stem.
On this parts fiche the Cotter,valve is the most specified component.
The component with the lowest price in the CAMSHAFT/VALVE schematic is the Cotter,valve.