Possible 1972 Pella casement mechanisms

A quick learner from Colorado says:
Looking for replacements. Have RH and LH swing. Stamped on arm is "W.L."
Thumbnail of the uploaded file named image.jpg
Thumbnail of the uploaded file named image.jpg
Thumbnail of the uploaded file named image.jpg
Profile picture of Casey
Casey from SWISCO responded:

Hello,

Take a look and compare the specifications of our 39-175 and 39-176 Pella operators to yours. These operators use our 39-109B handle. Thank you!

Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.