The twenty-one Pk50 Wallaroo 1994 (r) Netherlands Air Cleaner component parts are all listed in this schematic.
A sample from the products for the Air Cleaner include: Seal,air/c Cover, Case,air/c, Stay,sprocket Cov, Tube,air/c Conn.
The most reasonably priced component used on the Pk50 Wallaroo 1994 (r) Netherlands Air Cleaner is the Bolt,hex.,6x18.