Parts such as the Crankcase/oil Pump: Pin, Knok 10x14, Body,oil Pump, Pump Assy.,oil, Bolt,flange,6x65 are included in the St50 Dax 1988 (j) Germany Crankcase/oil Pump parts fiche.
The most reasonably priced component used on the St50 Dax 1988 (j) Germany Crankcase/oil Pump is the Screw,cross 6x16.
This CRANKCASE/OIL PUMP assembly utilises four Bolt,flange,6x65(s) - the highest specified component.