The nineteen Kaf300-c3 Mule550 1999 Europe Steering Shaft component parts are all listed in this schematic.
With four applications this Bolt-upset-ws,10x25 is the most specified part.
Parts such as the Steering Shaft: Pin-cotter,2.0x22, Nut,lock,10mm,black, Damper,steering Gear, Bolt-upset-ws,10x25 are included in the Kaf300-c3 Mule550 1999 Europe Steering Shaft parts fiche.