Replacement Casement Operators Needed

A handy person from Chicago says:

Hoping you can help - here is a picture. These are probably from 1973 or so. I will be replacing 12 operators throughout the house, and I can change them out to anything equivalent. The window width is 16 inches.

I haven't removed any yet. If you need more info, please let me know and tell me how/where to locate markings that will help.

Thanks in advance!


Thumbnail of the uploaded file named thumbnail2_IMG_0094.jpg
Profile picture of Tom
Tom from SWISCO responded:

Hello, Greg! This looks like the old Pella casement window operator. See our 39-175. I think this is just the part you needed. We also sell the 39-176 for the opposite side. 

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