Hello everyone I have some questions about the oil catch can assembly on my 1983 240d. I'm going to do a valve adjustment soon and afterwards, I wanted too install a new breather elbow and oil cap seal so the valve cover doesn't have a light oil film on top of it.

However I can readily find those parts, but what I'm having trouble finding is the second breather hose elbow that plugs into the side of the oil catch can, does anybody know what the part number for this elbow is?

And also while the valve cover is off how would I degrease it and clean it to make it look really good on top of the engine?

Me and my father took very detailed close up pictures so naturally the file is too big for it to be directly inserted into peachparts so I'll create a public google drive folder with the 4 pictures in it.

Link to pictures:https://drive.google.com/drive/folders/1cNvnOjgRXNPRZM2DWA1ObSjqkVDnV4iC?usp=sharing

Any thoughts appreciated!