Parts such as the Crank - Piston: Circlip 256116340000, Crank 1 (r.h), Key, Straight (584), Piston Ring Set (std) are included in the Xs2 1972 Usa Crank - Piston parts fiche.
The thirty-six Xs2 1972 Usa Crank - Piston component parts are all listed in this schematic.
The component with the lowest price in the CRANK - PISTON schematic is the Pin, Dowel (256).