I don't have a photo of the part because it fell apart when I removed it. It is the same size and design as the
40-022 except the rim on one side is not as wide as it butts up to the head frame and it is white. I've attached photos of the hole in the frame head and that for the sill. Both holes are directly inline with each other.
Thanks for any help. Worst case I will just buy another
40-022 and trim the rim to fit.
Geoff