Crestline window latch and crank

We have a few operators that resemble the one you're showing us. In order for us to be able to narrow down which one will work, we need to see a photo showing the entire balance and supply us with the arm length. 

As for your lock, at first glance it looks similar to our 38-056 and 38-057, but I can't be sure with the way the lock is pictured. If you can upload a better photo of the lock from a different angle, it would greater our chances of finding a match. Thank you.

Thank you for getting back to us with more photos. With these photos, you lock looks more like our 38-144, but again, I can't be 100% sure. As for your operator, compare your link arm measurements to our 39-031 and 39-032. See if these can be used to repair your window.