Window closing mechanism

A home owner from Virginia says:
Hi there,
I am looking for a match part for my window closing mechanism assembly.
I would like to get the whole thing and replace it since the small gear inside is completely worn out. The part number on it it is faded but my best guess is (part number : 9970A-3A).
Please advise me that wich one of your product will be a match for my window.
Thank you in advance.
Regards
Hooman
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Bob from SWISCO responded:

Hey Hooman. See if the 39-264 Andersen Operator matches up. If it does, and if your window was made between 1995 and 1998, you'll need to also use the 39-362 Adapter Plate sold separately.

Connecting a casement window operator to stud bracket
Connecting a casement window operator to stud bracket
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Anatomy of a casement window
Anatomy of a casement window
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