45251 operator replacement

A quick learner from Ct says:
I have a split arm operator(right hand) made by truth with the cast numbers of 45251 as well. I am having a hard time finding a replacement. Please help!
User submitted a photo of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Hello! Please see our 39-172, I think this looks like a good match.
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