Right window crank

This appears to be an older style operator. We won't be able to supply a match, but I wonder if you can use one of our more modern products like the 39-014 as a replacement. The wheel bearing at the end of the arm appears similar to yours and is designed to fit in a track like our 39-533.

The base is the biggest difference. If anything will prevent our 39-014 from installing, it'll be that. You may need to adapt the sill or sill trim to conform to the new shape, and even then I can't guarantee that it will work. I'm sorry that we cannot offer a better suggestion.