Crank windows arm replacement

A quick learner says:
Looking to replace this part of my window as the crank broke off. What replacement piece is needed? Not sure how old the windows are because I just bought the house. Thanks
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Emily from SWISCO responded:

Hello!

The operator in your photos is no longer made but we luckily have a substitute. Take a look at the 39-315 and 39-316 along with the video below.

If you have any questions just let me know! 

How to Replace a Discontinued GU Operator
How to Replace a Discontinued GU Operator
VIDEO
WATCH >
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
How to identify casement and awning operators
How to identify casement and awning operators
GUIDE
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