Three point linkage (rear) for Siku tractors.
You can easily take a Siku tractor apart by removing the screws at the bottom of the tractor. You can put the new hitch in place again.
This is the hitch number 1321. It will depend on your tractor which hitch you need. The number is pressed in the hitch, however you have to remove the existing hitch from your tractor to identify the number.
1321 is typically a hitch for the newer models.