Below is a picture of the intake manifold on a 2006 2.7L.
The vacuum diaphragm shown rotates something in the intake manifold.
The seal on the part that rotates is bad and there is a vacuum leak.
I find no reference to this in any parts diagrams. Do you know what this is?
I need to order the seal for the manifold, but have no reference.

 

I believe you would call it the variable length intake runner control.

 

I think you are right, but no where can I find reference to the intake manifold seal for the variable runner.

 

Special items like that are considered "Dealer Items". Any questions you have for specialty items like that a dealership parts dept should be able to answer any questions on parts used there.