[Pittsburger]

I dropped a plastic cap under my hood while doing a belt, tensioner replacement and after opening the plastic covering under the hood, I found a mystery rubber part. I imagine that the mechanic must have dropped a rubber cap or something. Wondering where in the car it belongs?

Does anyone recognize what this is and where it belongs?

One end is hemispherical shaped with a hole in the center, other end is flat and has 8 holes circling a center hole as shown in picture.

Please help thanks!

[Pittsburger]

Nevermind.

Rubber hemisphere found its home under the air box.
I must have pushed it loose when I was moving the air box around to do the accessories belt replacement.