Anderson Window

Question

I am trying to learn the name of this part. Written on the back is "F-9400-8A"
and the letter "B". If the part is identified, I would like to order 2. I

Tom · Accepted Answer

This part is called a casement window operator. Yours in particular looks like the Andersen brand 39-264.

Keep in mind that if your window was made from 1995 to 1998 then you will also need a 39-362 adapter plate.