Searching for 8573 853-2A

Looking for a few more parts for one window. So far I have found 2 of the parts I need. Still looking for the correct parts for:

Window pivot bar (the part shown in image is from a different window as the originals are rusted away completely in the other window)
Window pivot bar housing (8573 853-2A and -2B)

Images are attached. Part number is shown on housing but I am unable to find it.

Could you please point me in the right direction? Thanks!

Brenda

Thanks, Tom! I will try those out. They look pretty similar. :)