Casement operator replacement parts

A quick learner from Frederick MD says:
Hello I am trying to find replacement operators for a few of our casement crank windows. The manufacturer is "Wright" and on one of the arms there is a number 6494. I am hoping you could advise me on the correct replacement model that you offer. I have attached a few photos that I hope will help in identifying the replacement. Thanks for any help you can provide.
User submitted photos of a window operator.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Wright products made many different versions of this operator utilizing different arm lengths and configurations. Looking at your photo, yours appear to match up to our 39-171. Carefully look it over and see if it matches up to your operator.
A quick learner from frederick md says:
Thank you Dave, this was the right operator.
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