2 1/2 9//16 Jocelyn window crank

Hello,

We do have a record of the part shown in your image from back in the 1980s but we suspect that it is no longer available. With that being said, take a look at the two operators related on this page. I'm personally leaning toward the 39-054 but the 39-056 is also worth considering. Review the specifications of both assemblies to see which one matches up to yours. 

Dimensions for 39-054

Dimensions for 39-056

Alternate view of 33-067

Alternate image for 33-207

Also, note that the link arm doesn't have to be exact in length because there is some "play" in the gear that should make up for the length. As for attaching the arm to the window linkage, yours has a "groove pin", which uses an "e-clip". These operators use the 33-067 shoulder screw. Take a look at these parts and the related videos to assist you. Thanks for posting.