Handle has number 45054 if this helps?

Hello, thank you for posting,

If you are only in need of a new cover and handle, please review the style and dimensions of the 39-107 cover and 39-114L handle that fits onto a 11/32" operator spline.

To further review for a new operator, we will need to see the window open where we can see a bird's eye view of the arm attachment(s). Thank you!