Parts such as the Air Cleaner: Washer,6x20, Clip B8,tube, Sub Cleaner Assy., Clip B7,tube are included in the Pk50m Wallaroo 1992 (n) France / Sel Air Cleaner parts fiche.
The most reasonably priced component used on the Pk50m Wallaroo 1992 (n) France / Sel Air Cleaner is the Bolt,hex.,6x18.
This AIR CLEANER assembly utilises four Screw,tappin,5x40(s) - the highest specified component.