The lowest price component in this Crank - Piston parts-list fiche is the Circlip 132116340000.
A sample from the products for the Crank - Piston include: Piston (std), Pin, Piston, Bearing(6e0), Washer, Plate (647).
The Crank - Piston assembly is constructed from several parts from which the Crank Ass'y is the most expensive.