39-387 & 39-388 too short

A quick learner from united states says:
July 23, 2020
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
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Tom from SWISCO responded:
July 27, 2020

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.
Truth Dyad Operator
Truth Dyad Operator
39-316
$24.40
Stud Bracket
Stud Bracket
39-514
$4.35
Stud Bracket
Stud Bracket
39-513
$4.35
Truth Dyad Operator
Truth Dyad Operator
39-315
$24.40
Split-Arm Operator, Wright
Split-Arm Operator, Wright
39-387
$36.20
Split-Arm Operator, Wright
Split-Arm Operator, Wright
39-388
$36.20
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