The seal shown in the image was a Felpro seal. It was difficult to install so I pulled it out and bought one at the Subaru dealer. It went right in.?
There were literally some sleepless nights when I questioned whether something was installed correctly. I replaced the new cam seals because I thought I had inserted them too deeply. I took the oil pump back off because I was concerned that the little o-ring slipped out of place while I was installing the pump (it was fine), and I took the timing belt off numerous times because lining up the timing marks was not as straightforward as I thought it should have been. And that Felpro rear main seal caused me to lose some sleep.?