Yes, I kept it as it appears to be original with the C8OE-B number on it. It’s tight and doesn’t have any play in it.
In looking online, it appears only the CJ fan clutches are rebuildable as they can be split apart and refilled with silicon fluid…somewhere between 35-45 ml.
The following shop rebuild them for $300.
A concours version from Dead Nuts On is available, but a bit expensive at $457.