Replacement window crank mechanism

Hello there. It looks like you have either the 39-032 or 39-156. The difference between these two dual-arm operators is the length of the link arm. See the diagrams below for reference. Compare both with your old operator to see what matches best. In either case, for new handles and covers see the 39-114L and 39-107.

Dimensions for 39-032

Dimensions for 39-156