And forgive me...I did search but did not find a definitive answer...

On a 2019 5th gen there are 2 tubes between the radiator and grill. One runs vertically and appears to be the AC high pressure line. No problem, that can be bent slightly by hand.

What the heck is the larger tube that runs horizontally across and connects to rubber lines at both ends?? Is this really Toyota's answer for a P/S cooler?? Surely it isn't for engine coolant...
I would like to have the hose and fluid available when I pull the front end down to install the new Victory 4X4 Blitz bumper and winch. Looks like that tube needs to be moved up several inches...

Thanks in advance!
Kirk