The lowest price component in this Starting Motor parts-list fiche is the Nut,thin 6mm.
The Starting Motor assembly is constructed from several parts from which the Motor Assy Start is the most expensive.
Parts such as the Starting Motor: O-ring,60x1.4, Motor Assy Start, Circlip, 11m/m, O Ring, are included in the Cx500c Custom 1980 (a) Germany / 27ps Starting Motor parts fiche.