There's only like one replacement part. The diaphragm. Your local pool store probably has one that will work.
I see that it's missing the bumper ring. It will work without that, but it may get hung on steps, etc.
Barracuda 1500 or Wahoo parts will probably fit it. However, you're probably better off just getting a new one.
Thank you for your help. I am doing this pool thing on the cheap so I think i'll just keep rocking it.
Other than the diaphragm the only other part you would need to make it work are the valve regulator and the valve cuff. They are the same for any of the barracuda/ranger models. You can see a description of the parts here