Cranks are broken

A quick learner says:
March 1, 2021
Can't find a company to purchase complete assembly for my windows. The cranks have model number 30905. The tracks we ordered from another company seem to be correct. Id much rather purchase everything from one company correctly. Please help.
Thumbnail of the uploaded file named 16146164605487198476018375741916.jpg
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Bob from SWISCO responded:
March 2, 2021

The link arm looks pretty banged up, so it's a bit tough to tell, but I am wondering if this is our 39-171 Operator. Compare the dimensions and let me know your thoughts. 
Truth Hardware Dyad Operator
Truth Hardware Dyad Operator
39-171
$32.55
Truth Hardware Dyad Operator
Truth Hardware Dyad Operator
39-172
$32.55
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