Hello,

Looking for the PART # please. I know it's an O-ring, and there's probably a common size, but I am looking for the part #.

Application: 240D Mercedes W123.

There is an air-oil separator held in place by three (3) bolts mounted to the intake manifold.

At the end of the air-oil separator, there is a nipple which goes into an oil drain tube which feeds into the oil pan. The nipple on the separator has an O-ring. I am looking for that O-ring part # / (size also), but I am searching for the part #.

I need to order that O-ring. Looked a bunch but no dice ...

If it is # 67 on the diagram in the link...
1981 Mercedes 240 D Sedan OIL PAN & OIL LEVEL DISPLAY
Then it is 0069972645
12 mm ID X 2 mm CS

Measure the diameter of the tube to be sure.

__________________
78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022

I don't think that's it. I could not find a diagram of the air cleaner with separator. Thanks for looking ...