Hi, I am trying to find a replacement part for my casement windows. I have attached some photos and also uploaded a video to my Google Drive:
LH Casement Operator




Hello!
We appreciate you reaching out to us. Your operator reminds me of an older version of the 39-013, 39-254E, or 39-027E. Take a look at the specifications and see how they compare with your old hardware.
As for the hinge, we recommend you start by taking a look at the 36-048. Just be sure to replace the top and bottom hinges at the same time.




We have come across this operator with an 11-1/2" arm in the past but we don't believe it is still available. My suggestion would be to use the shorter operator arm which would be the 39-027E and the 39-028E. I'm not sure you could use the 39-013 operator with the 13-1/2" long arm. You would have to see if your window is wide enough to accept it. Taking another look at your hinge, I wonder if the 36-004-10 might be a better fit. Review the specifications for these parts and see what you think.