Window crank

A quick learner from ChampAign says:
40066. Truth. Slide on window. 13 3/4.
User submitted photos of a window operator.
A home owner from champaign says:
window crank - 40066 truth - 13 3/4 slide on window - so do i need a 9 inch or 11 inch crank set up -
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Can you confirm the length of your arm? Just eyeballing your picture, it looks like it might be shorter than 13-3/4". I'm afraid the closest matches we have are our 39-138 or 39-141.
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