Hello,
We'd be happy to look into this for you but we would need you to write-out the exact diameter of the opening in your handle that attaches to the operator base. It would also help to see a top-down photo of the operator with the window open so that the entire assembly is visible, which would help us determine which handle and cover options would be compatible. Thank you!
Thanks for getting back to us. Unforutnately, we can't make out exact dimensions from photos but your operator resembles one of the Encore style operators shown in our video below depending on the type of fitting at the end of the long arm. Both pairs are used with the 39-375 and 39-376 handles and covers, which attach to 11/32" diameter operator splines. Take a look and see if these could work for your application.
The only handle we have with a 3/8" bore size is the 39-104, but this is used on a very specific kind of operator. It also does not fold like your original part. I'm sorry that we are not able to offer a close match in the size that you're looking for.
