Gears are stripped and the crank case

A home owner from Deerfield, IL 60015 says:
July 10, 2020
Gears are stripped in the crank case.
Hello
Was wondering if you could help us find the right part to replace it?
Unfortunately there's no markings or information on the window or crankcase
This is a block window with crank case in bathroom This is a block window with crank case in bathroom.

Thanks again,

Mike
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Casey from SWISCO responded:
July 14, 2020

Hello,

Take a look at our 39-165K operator and see how the dimensions of the installation holes compare. The link arm can be broken down to size as well. Thanks for posting!
Jalousie Window Operator Kit
Jalousie Window Operator Kit
39-165K
$12.97
39-165K Jalousie operator replacement kit
39-165K Jalousie operator replacement kit
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