Need the part for the attached clip on the window crank

A quick learner from New York City says:
I have the Swisco Maxim Dual Arm Operator, Sill Mount part number 39-253L. It doesn't have the black clip/guide which is attached to the old window crank. Please help identify this part.
User submitted photos of a window operator.
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Tom from SWISCO responded:
Thanks for posting! I agree, the 39-253L appears to be our best match. You could re-use your old track glides.
A quick learner from New York City says:
Tom - Thanks for the update. I tried to pry off the glide from the old one and it just won't budge. In fact, it's pretty much bent to the point that it's unusable. Can you please provide an appropriate replacement for this?
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Dave Sr. from SWISCO responded:
Hey, hopefully I can help. We haven't been able to find a guide exactly in your style, but I think you could substitute it with our 39-529 slider and 39-528 track. These are both compatible with the operator Tom recommended before.
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