Replacement Window Part

Hello, thank you for posting,

It appears that you are in need of a new crank operator. To further review, we will need to see the window open where we can view the style of the arm attachment. From there we can compare to our selection to determine if we can supply a suitable replacement option. 

With the window unlocked, you should be able to gentle push the sash open. Thank you! 

These photos are a huge help, thanks so much! Please see our 39-146 and 39-147. I feel confident that these are the parts you need, but review them below and see if you agree.

Dimensions for 39-147