The specs I saw was from a pump on Surplus Center, which had a different suffix, so it could have had a different shaft or port configuration. It said it was a 0.52 cid, which should be consistent across the range.
If you google:
Cessna 24205 you'll get a lot of different suffix numbers, including the SC one.
Cessna 24205 LAC which is the correct suffix for your machine, you get some different results, including a lot of threads here about the same issue.
If you can find a replacement with the same mounting (SAE A), the same shaft diameter so you can use your existing pulley, has the same port threads and rotation, that would be ideal, but you have to know exactly what you need first.
You can always contact Loader Parts Source, they probably have a replacement.