Holder Headlamp Windscreen wiper

Good evening together. By chance I came to a 1989 3,6 V8 quite cheaply and will make it fit again.

The car has the headlight cleaning system, but when wiper on the left side the plastic piece is missing,
which sits between the wiper arm and the wiper blade.

Is there a single part number, or does someone still have the small part lying around?

I could do the part on the 3D printer myself and then upload the file.

Thank you in advance and beautiful rest Sunday
lenny021112