Optimax 150 - Trim Motor Manifold - What is this called, See Pictures

[buzzbomber]

Appreciate any help in advance.

Motor: Optimax 2004 150HP
Issue: Trim motor dumping fluid

I'm usually pretty handy about researching things but having trouble locating what this little pin/plug/anode is even called and what to search for, The parts diagram drawings for the Trim motor I've looked at don't seem to call it out specifically.

When I removed the bottom plate anode to source where the leak came from I found the metal piece pictured in my hand on top of the anode, then I saw the hole where it came from. Not sure if this is repairable or if it's now just a broken trim manifold and the whole thing needs replacement.

The piece that fell out didn't seem to have threads on it so not sure how it was that opening to begin with.

Again any help is appreciated,

Thanks

 

[buzzbomber]

On closer inspection in some daylight that appears to be the bottom of the Trim cylinder and not the manifold.

I attached another picture of a cylinder that seems to have the same "plugs". The question I have now is this serviceable or do I just need to replace the cylinder? can't find a part number for just the "plugs" and don't see them in the rebuild kits.