Window cranks

Thanks for posting. While seeing the mounting hole configuration is helpful, there are still too many possible options for me to narrow it down to a few recommendations. I'm afraid we need to see the operator out of the window, with the link arm in full view as well. That will help us identify possible replacements. See the video below for removal and replacement details. Many thanks.

This is a great picture, thank you. 

Now, this is a very old design. I doubt this exact model is made anymore, but after looking through our inventory I noted that our 39-085 has very similar features. This is just my assessment after eyeballing it, though. I highly recommend looking over our dimensions and photos and seeing how well the finer details compare to your operator. I think this is our most promising option, but that's by no means a guarantee. Let me know what you think!