Hello there. Does your operator's link arm look the straight arm shown in this old discussion here? If so I am afraid this operator is no longer made, but you might be able to replace it with the 39-365 and 39-366 along with a 39-114L handle sold separately. Take a look and let me know what you think.
Hey there, maybe I can help. They unfortunately don't make this style operator with an 11" arm anymore, so that won't be an option you have access to in today's market. We do carry the 39-014 operator, which has a 13-1/2" arm. That would probably work better than the 9-1/2" arm but there is a risk that it will be too long.
Take a look at the 39-014 and see what you think. Ultimately, though, you aren't going to find an easy quick repair part for this window. Any operator you go with is going to necessitate some retrofitting on your part to get it to work. They haven't made your original part in a long, long time.
