Window crank
Looks like an old awning window operator. We sell a bunch of these, but in order to narrow down the list of possible replacement parts I will need you to disconnect this from the linkage, remove it from the window, and show me a clear shot of the link arm without obstruction.
I also can't quite make out the pattern of the bottom two installation holes. Might that be another shot you can take for me?
Thank you for responding so quickly!
I'm afraid that without seeing the linkage without obstruction, I won't be able to make a recommendation.
For now, you can see our full selection of awning operators here. If we sell anything that has any hope of replacing this then it will be on this page. However, that link arm is a vital detail and you won't be able to narrow it down without removing it first.
Sure thing! Sorry again that we couldn't make a more reliable recommendation. If you're really having trouble with the window then you may want to ultimately have a local professional come out and see what they can do about it. These windows are definitely frustrating to deal with even on a good day.