Looking to replace a cracked vac line.
Does anyone know the proper term for this? I'm having trouble locating it anywhere.
The rubber at the y has a small hole/crack in it.
Thanks in advance.

 

Vacuum line wye(Y) connector? If you can't get the exact part replacement, I would guess that a same size diameter wye or tee in rubber or even hard plastic would work. You may need to get creative with slightly different diameter rubber vacuum hose to get everything together air tight.

 

Here is a Mercedes Y connector on ebay.

https://www.ebay.com/itm/NOS-VACUUM-...4AAOSwMVFXH83T

I noticed 9 have been sold. seems to be a common problem.

 

Thanks! Silly me thought it was molded to the line...

 

Good find.