Truth window operator replacement

A handy person from Toronto, Ontario says:

The gears on the crank of my casement window are slipping and clicking. I have two to replace, but I'm not sure they are identical. The 2 images I've sent are for the first one. The longest arm is about 9" long and the brand name stamped on the arm is Truth.

Can you help me find a replacement? I'd love to do business with your company! I will send you details of the other window operator in another post. Let me know if you need more info. Great website by the way.

User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
Hey, Andrew. How about our 39-253R 39-253L? Compare the measurements and let us know if they differ in any way.
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