Coolant "Y" Pipe to the Heater

[northern piper]

has anyone bought this y pipe at rock auto?? Any idea on part number???

[LTDzak]

Just wanted to add to this thread and indicate that the part number listed is not necessarily correct. The part no. XF2Z 8538 AA (Motorcraft KM 4386) is for the tube that runs under the intake, and NOT the Y-pipe that runs from the heater core return to the top of the water pump. Both repairs are discussed in this thread. Will post the correct part number for the Y pipe when I learn what it is.

[cbaker007]

I have already replaced my "under intake" pipe twice (2002 - Windstar SEL - 100K). Leaked at the tube bend both times. I believe when they bend the pipe, they weaken the metal (make it too thin in the bending process).

Additionally, I am now having to replace the "Y" pipe too. It is leaking at the weld where the first "Y" bends off the main pipe. Again, poor manufacturing.

The part number stamped on the pipe (per the ford parts person is a "stamping number") is XF2E-18663-AB. But the actual ford part number that he gave me after the "conversion" was XF2Z-18663-AA. So both are correct I guess, but the second one should be used when trying to find it. My local ford dealer had it in stock for $45.50. Saw it online for cheaper but couldn't wait on the shipping.

[cbaker007]

Oh, one other thing, someone asked about the "Rock Auto" part number. I did not buy this from Rock Auto or any other 3rd party, but I believe it is made by an after market supplier (based on the pictures I have seen, but not tested):

DORMAN Part # 626210

I have seen this on Rock Auto, Autozone, etc.

[KzooFordGuy]

Dorman Products Item Number 626-210 is equivalent to Ford/Motorcraft XF2Z-18663-AA

http://www.dormanproducts.com/p-50920-626-210.aspx

Amazon.com has it under "Dorman 626-210 Heater Hose Assembly" for $23.91

I'm looking now for the one that runs under the manifold. I'm not sure Dorman makes that one yet.

[smitty57]

2001 windstar leaking or spraying coolant from under flange where y tube goes in top of pump is it the o ring or is tube rusted out in top of pump.

[smitty57]

I have 01 windstar that developed a coolant leak at the y pine where it goes in water pump found it was rusted almost into down inside pump and broke on off in pump while trying to remove it.Ok my problem is that while trying to remove the broken off piece it went on down inside the pump i can't feel it anywhere i started the van momentarily to see if it was hitting anything and it seems to be ok no noise or anything would you guys just install the new y pipe and take a chance or go ahead and change pump.

[Ed_Strong]

Have you tried fishing it out with a magnet? I would not leave the old piece in there...It is just going to keep rusting away and contaminating the antifreeze. Also with time it may become small enough to move into the water pump impeller causing serious damage and a more costly repair! It could also travel thru the engine cooling passages and possibly blocking the flow of coolant and overheating the engine. Don't chance it...not worth it!