The twenty-three Mb50 Mb5 1979 (z) Japanese Home Market Crankshaft - Piston component parts are all listed in this schematic.
The lowest price component in this Crankshaft - Piston parts-list fiche is the Clip,piston 12mm.
This Crankshaft Comp. is the most expensive of the items that make up this Crankshaft - Piston assembly.