Pella window crank replacement part

A home owner from downgintown, pa says:

I need a replacement crank/operatator for a Pella casement window. the only marking I see on the window is 619 patent paending. the window handle turns but the operator will not open the window. I think the gear is stripped. thanks
User submitted a photo of a window operator.
Profile picture of Paul
Paul from SWISCO responded:
This looks like a Pella casement window. I can only see the crank handle and the base, though. There are two possible replacement operators, but I would need to see the arm in order to confirm. Look at our 39-096 or 39-176 in the meantime, though. One of these may be what you need.
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