I have two different styles of window cranks. I need to identify each replacement part. I put a tape measure next to the parts to help identify the length of certain components. If you need any additi

Hey there! You say you have two different styles of operators, but the only difference I can see in your photos is that one operator is a Left hand and the other is a Right hand. Take a look at the 39-220B and 39-221B Dyad Operators. I believe this may be what you have, but review the dimensions to confirm. These are the newer style with removeable covers with the regular handle and the folding handle. See the 39-451 and 39-451 Cover and Handle, or the 39-375 and 39-376, depending on the style you prefer.

Detail of 39-220B

detail of 39-221B