Anderson Casement crank replacement

A handy person from Michigan says:
July 30, 2018
Need to replace 3 left hand and 1 right hand of the attached.
Can you please advise if your 39-264 is the correct part?
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Casey from SWISCO responded:
August 2, 2018
Hi there- thanks for reaching out to us! 
Our 39-264 is the operator that you need. Something else that is also worthy to note and look into is if your house was built between 1995-1998 then you will need to purchase our 39-362 Operator Adapter Plate. Take a look and let me know what you think or if you have any questions. 
operator
Andersen Split Arm Crank
Andersen Split Arm Crank
39-264
$28.77
Andersen Casement Operator Adapter Plate
Andersen Casement Operator Adapter Plate
39-362
$21.45
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