Andersen crank operator replacement

A quick learner from Cornelius, NC says:

My window is about 36" X 15" awning window. The gear slips about 1/2 way out and binds up coming back in. The house was built in 1996. It's a single arm operation. The number on the arm is 1521101. The only number I could find. Need the crank assembly. Thank you. Joel 

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Dave Sr. from SWISCO responded:

Thank you for your inquiry. The number you provided to us leads us to 39-099 Andersen awning operator. Take a look and see if this is the part you're looking for. If this isn't correct, get back in touch with us with some photos and measurements of the part, and we will be happy to continue to search for a match. 

How to identify casement and awning operators
How to identify casement and awning operators
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