Window Crank Opertor

A quick learner from Minnesota says:
I have been searching your site and the Q&A section, but haven;t found the exact match to my operator. Some are close, but mine has a 5" extension on the split arm. All the other seems shorter. The window casement says it is an Anderson window with a manufacture date of 9/9/96 and serial number 4000C63. Hoping you can help. Thanks!
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Bob from SWISCO responded:

Thanks for writing in. I believe you could use 39-264 operator along with the 39-362 mounting plate to replace this older style window operator. Let us know what you think. 

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