What is this part?

[BJH324JH]

Search P/N MD715206. Looks like there are several sources available.
Also, the oil separator appearing in the first pic of your initial post is installed in this manner:


Install the seal first then the separator on top of the seal.

It's difficult to tell by the picture, but do the oil separator legs face out or in?

[FMS88]

It's difficult to tell by the picture, but do the oil separator legs face out or in?

The tabs (legs) should face up (out), away from the seal. That way the top edge of tabs are flush with the seal housing and the back of the separator is against the seal.

[BJH324JH]

The tabs (legs) should face up (out), away from the seal. That way the top edge of tabs are flush with the seal housing and the back of the separator is against the seal.

Aww I see. Thank you so much!