Replacement crank needed for American Craftsman casement window

Quick Learner from Ballwin MO
Please help me to identify which replacement crank would work on my American Craftsman casement window purchased in 2008. The only numbers I can find on the broken crank are 2108. Attached are four photos which I hope will be a help in identifying the right part. Thanks, Lynda
User submitted image of their window hardware.
4 Replies
Paul
Paul from SWISCO
SWISCO
Expert
Hello, Lynda! Assuming the spline size is 11/32" in diameter, I recommend our 39-205.
Quick Learner from Ballwin, MO
Thank you for the advice, Paul. I know need to ask what the spline is and if there is any special way to measure it. :)
Tom
Tom from SWISCO
SWISCO
Expert
You should be okay just measuring the diameter of the hole in the handle that fits over that stem. Here it is on the 39-205.
Alternate image for 39-205
Alternate image for 39-205
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