I took my part off the window and need help identifying a matching replacement. Your 39-054 looks like it would work, just need an extra set of eyes to confirm. Thanks.
Bob from SWISCO responded:
February 19, 2019
Thanks for posting. The one concern I have with the 39-054 is the offset in the link arm; it doesn't appear your old operator has this feature, and it certainly could affect function. Take a look at the 39-056. Compare the dimensions to your old part. Do you think this could work for you instead?