I believe these are caradco window from 1975

Question

The left and right operators need replaced. The operators measure 15 7/8 inch from one end to other end of crank. Or 12 inches to the first bend in the arm

User submitted photos of a window operator.

Tom · Accepted Answer

Thanks for posting. Check out our 39-013 and 39-014 and see if either of these can work.