Andersen 31 operator

A contractor from Elmhurst, IL says:
March 2, 2022
We have a customer with very old Andersen windows that need two new operators (1 left, 1 right). The arm measures approx. 5/8" wide x 7-1/2" from tip to where it starts to angle going into crank cover. This measures approx. 3-3/4" wide x 1-1/2" deep. As you can see from the photo, the arm has Andersen 31 stamped on it, and also has an unusual mounting bracket on the end. Any thoughts? Thanks.
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Dave Sr. from SWISCO responded:
March 7, 2022

Hello,

I'm honestly not sure if your operator is still available. It does remind me of the 39-094 and 39-095 operator from Andersen. Review the specifications to see if this can be used on your window by replacing the operator and track. Thanks for posting. 
Andersen Straight Arm Operator, 9 3/8" Arm
Andersen Straight Arm Operator, 9 3/8" Arm
39-094
$99.97
Andersen Straight Arm Operator, 9 3/8" arm
Andersen Straight Arm Operator, 9 3/8" arm
39-095
$99.97
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