I have searched and had no luck. NLA at the dealership. My first set looked to be covered in dried up wvo but were robust and cleaned up nicely. This most recent set disentigrated when I pulled them out(for a head gasket replacement)
I’m referring to the black plastic bits that fit between the head and the injectors(only used on inclined injectors) sort of a guide for installing the injector threads and they keep trash from getting in the prechamber.
If anyone has a set of 5 or 6 it would be most appreciated.
Thanks

Had the same issue with those plastic shields crumbling. I don't know that they did much useful, so I left them off after rebuilding the head and have used compressed air or a vacuum to get debris out.

Those are one of those items that are totally unnecessary as near as I can tell.

Also NLA.

Sixto
98 E320s sedan and wagon
02 C320 wagon