The component with the lowest price in the CRANKSHAFT - PISTON schematic is the Clip,pistonpin 21.
Parts such as the Crankshaft - Piston: Clip,pistonpin 21, Pin,piston, Conrod.assy., Ring,piston(0.25) are included in the Cx500 1981 (b) South Africa Crankshaft - Piston parts fiche.
This CRANKSHAFT - PISTON assembly utilises four Bolt.,conrod(s) - the highest specified component.