300Tdi Breather o-ring size?

[Ranga]

Surely these are available at any o-ring supplier - what size would I ask for?

[DazzaTD5]

When I get a o-ring that I've not replaced before, I take both the old o-ring and the component to the seal mob, that way both can be measured and the o-ring is matched correctly.

Regards
Daz

[Vin Rouge]

It's part number LLO100000 if you want the genuine thing