Have a coolant leak. Need to know the part name.

Having trouble finding the part name and where I can buy it other than the dealer. Basically I have coolant leaking from the metal tube that comes out of the motor and runs across the front of it that the radiator hoses mount to. Its just a spot where the coolant weaps out of, looks like its rusting thru there. Well needless to say I can't find a parts diagram with it on there and what its called. Hoping its not a dealer only part but its looking that way. On a side note, how easy is it to change. Please don't tell me to look at a chilton or haynes manual, its not in there, I looked. Thanks for the help in advance.

Found out. Dealer only part. Its $95, ouch. Anyone know how difficult to replace?

2.2 eco, 2.2 ohv, 2.4 DOHC ?

I'm guessing the OHV.... but its pretty straight forwards. Its been a while since I had my 2200 and don't remember of it runs in front or behind the alternator bracket. Just remove everything out of the way. there is only 1 nut/bolt holding it into the head on the passenger side.