Truth part, number on the operator is 45301, and the number on the arm is 30895A.
You can see the arms are rusted, can the be replaced or do I have to replace the entire operator? The handle is okay.
The measurements of the operator is 21-1/2" long and the part where the handle crank is about 5", the other part where it attaches to the window (the hook) is about 4".
Thanks