Left opening window crank. Whole - handle, cover, gears, and spindle.

Hey there!

Thank you for reaching out to us. We're happy to look into this, but we'll need more information. Can you open the window and show us a clear photo of the arms that move the window sash? We'd also like you to remove the cover and show us a photo of the base of the operator. Those details will help us determine whether we have any comparable options. 

Thank you for the additional photos! Are you able to show us the arms that move the window sash? That will help us narrow down your options. 

I'm afraid we can't ID the operator without seeing the arms. If you unlock the window, you should be able to push it open by hand. 

You can also use an identical window as a reference if you have one. 

Thank you kindly! Take a look at the 39-031. We recommend you review the specifications below to confirm they match what you need. We also sell the 39-107FK, which is sold separately. 

Dimensions for 39-031