Part Number Query

[jpjeep26uk]

Hi, does anyone know the part number or original name for this part please? Some kind of air or oil sensor type cylinder?
Mine appears to be pretty solid muck inside despite a soaking in carb cleaner overnight. Thank you.
I'm UK based with a 2.5 late 88.

 

[T-Rex Jeepster]

Honestly....I've never seen one on anything here.....Could it be a Euro thing?

 

[jpjeep26uk]

Honestly....I've never seen one on anything here.....Could it be a Euro thing?

Yeah, it's an a 2nd air vent apparently. Captures oil spray from the rockers in a baffle inside it and chucks the clean air back into the engine.