Truth casement window crank operator and lock

Hello, thank you for posting,

Your operator could either be the 39-253RB and 39-253LB or the 39-439B and 39-438B. The main difference is the attachment at the end of the straight arm.

Please review the video below to confirm the correct option for your window. I have also related compatible cover and handle parts. 

For the casement lock, please review the 38-095, 38-096, 38-138 or 38-139 to see how they align. Compare the dimensions and projection of the fork. Let us know if you have any additional questions!