I have found a couple part numbers for this, and I believe the correct one is 806923030. Can anyone confirm that this is the correct number, or have an alternate number that you know is correct? It is the o-ring that fits on the transmission input shaft and slips into the torque converter.

Thanks!

Don’t know. Some of the Subaru sites post dimensions of orings. Maybe try looking to see if any of them list it to compare to the shaft measurements?

I’ve replaced those but don’t recall number. I’ve always gotten the right one so my hunch is you probably found the right one.