Thanks for the replay.
The part number is 95520107515 ....and I was told I needed to replace the whole tank since the line is connect to the tank (one piece).
Well, how it get broken is a good question!!. I only sent it to a porsche dealer for maintenance......they wanted 3,500 to fix it (labor + part). I took to another place and they told me that i indeed need to replace this part (which is in fact $1,500). I think this is a material defect (anyone has a suggestion how to claim with porsche?).
I am trying to shop for a used one...........