Window crank opener

Hello there. I agree the 39-253LB looks close. Is the appendage that goes in the track slide a square-shaped piece, like the 39-529 sold separately? If so, this is indeed the right operator. Let me know however if that appendage is a rectangle shape instead. See all the accessories listed on this page. For a new cover and handle, see the 39-375 or 39-451, depending on the style you prefer.