Replacement for left side window.

It looks like a crank handle like our 39-205 was installed atop this operator, which originally had a handle that could nestle more naturally into the base. If the spline is 11/32" in diameter, the 39-205 will work for you; but if you were interested in replacing the entire cover and handle, I'd like to see the entire operator, including the link arms, to confirm what might work. Many thanks. 

Can you show me the entire operator, including the link arm(s)? Either removing the operator, or at least opening the window and giving me a bird's eye perspective, should suffice. From there I can tell you exactly what you might be able to use. 

Thanks for getting back to me, that's perfect. This operator looks just like our 39-220B. In that case, you should be able to use either our 39-375 or 39-451 Cover & Handle Set, depending on which style you prefer. For the opposite-handed setup, see our 39-221B, as well as either the 39-376 or 39-452. Let me know if you have further questions. 

Glad to hear they worked, J.! Let us know if you need anything else, and thanks so much for your business, we appreciate it.