39-387 & 39-388 too short

A quick learner from united states says:
I ordered parts to repair a 7500 series window, which I received.
However, the operator arms are not the appropriate size to accommodate the window. I have attached photos in an effort to determine what the correct part is to resolve the issue.
The parts received: 39-387 & 39-388 are too short and not the correct replacement.

Thank you for your time & effort.

John
Thumbnail of the uploaded file named IMG-1859.jpg
Thumbnail of the uploaded file named IMG-1860.jpg
Thumbnail of the uploaded file named IMG-1862.jpg
Profile picture of Tom
Tom from SWISCO responded:

Hello, John. Your operator is actually discontinued and no longer made, but the video below will explain to you exactly which products can be used to replace them, and how.

Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)