Operator for alliance branded windows

A home owner from Michigan says:
It seems the gear on the crank for the awning operator is popping. Was hoping you could help me locate the part. I only have photos of the end but of the arms.
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Bob from SWISCO responded:

This looks like our 39-536 Pivot Slide, which is used at the end of operators like our 39-239B . You'll want to compare your old hardware to be certain this is what you have.

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