Crank window

Thanks for posting. I am afraid we don't sell these arms separately from the operators they work with. Can you show me the entire mechanism--the handle, operator body, and arm--from a bird's eye perspective? That will help narrow down what may work for you.

Thanks for your patience during this busy season. How does your operator compare to the 39-021? See the dimensions below.

Dimensions for 39-021

Hello there. I am afraid I can't cross-reference those codes with a specific operator in our records. Can you send us photos of the hardware in question? A bird's eye view, with the entire assembly out of the window or at least with the window open, would suffice. We'll do our best to help from there.