There is a plastic T connector that sits in the middle of the large radiator hose on the passenger side of the car on the top side of the engine. I am having difficulty finding a part number. Can anybody point me to a part number?

Here is the graphic from the manual (page 1568):

 

Maybe it is this one: https://www.sngbarratt.com/English/#...20SYSTEM(12442)

or more likely this one: https://www.sngbarratt.com/English/#...20SYSTEM(12442)

 

They don't make those connectors separately, you will have to buy the hose/assembly.

OR - you can cut the bands, pop it off, measure the diameters, and google a generic aluminum replacement.

 

In my case, this was the correct part: https://www.sngbarratt.com/English/#...20SYSTEM(12442

That might vary by VIN.

This part was mostly on top of the engine but access was still a bit difficult due to the limited amount of space you have to work in.