replacement window gear for casement window

A quick learner from Piffard, New York says:
The spiral mechanism that connects with the gears that move and open the window is broken off on the end and will not close the window. It says 'Truth Entry Guard' but the piece that connects to the gear is angled and the replacement part #39-036 is not angled. The measurements are also different. The other part that looks close is 39-216. I am not absolutely certain if my window is a 'dyad' type casement window mechanism. Help!
User submitted photos of a window operator.
Profile picture of Tom
Tom from SWISCO responded:
I think your operator looks like it might be the dual-arm type. Instead of the 39-036 or 39-216, which only have one arm, check out our 39-031 and 39-032. Carefully compare the dimensions we show to your own operator and let me know if you agree.
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