Looking for a part number for this part here

[eli995]

(Rb25det intake manifold)
I’m having a hell of a time trying to find the full part or part number of this coolant hardline

so far I was given these (Below) but they aren’t what I’m looking for and was told it’s the IAR or aac valve but that doesn’t seem to be it either. If someone could point me in the right direction it’d be greatly appreciated. Or if anyone has it for sale that’d be great too. I have recently purchased a greddy manifold and I can’t seem to find my old one to pull it off. 

• (Front Heater Return / Water Pipe (under intake):
  • Primary part: 14053‑21U10 (front return pipe assembly for R33/R34 RB25DET)
  • Alternative listing: 14053‑21U00 (same pipe, sometimes interchangeably referenced)
•  
• Heater Feed Pipe:
  • Listed as 14075‑04U00 or feed-related variant 14053‑AG500)
•  

 

[Duncan]

So....to find any R chassis part number, get your VIN (will be something like ER33-xxxxxx for you) and go to: https://www.amayama.com/en/genuine-catalogs/nissan and enter it.

From there you have access to a web version of Nissan's part system, FAST. It is a bit tricky to get used to, so maybe have a shot and post up what you think.  You can also search by general model but note in some cases your car might have different options so VIN is safest.  On diagram 211 I got 14075-75T16 for Connector, Water Hose

If I search for part 14053‑21U10 that you posted, that is also a water hose but not the one bolted to the plenum and 14075‑04U00 is the fitting where the water hose goes into the block.

[dbm7]

Did some FASTing ...got the impression that the actual part# was a moot point ; seems all of these hardlines for coolant are discontinued/NLA... like, I take it you're after the hardline that bolts onto to the manifold...that's NLA according to amayama & nengun ....

...just to clear up some confusion, they typically mounted the AAC valve to the intake manifold somewhere near a coolant passage, so the body of the valve heats up & holds it open when engine's up to temp - no coolant flows through the valve, it's a mechanical, thermal connection.