Where do you source or buy replacement IACV hose for a 1997 Infiniti I30? Usual silicon or heater hose are just a bit too soft for this.
Seems a commonly broken piece leading to rough idle and engine stalls.

 

I buy most stuff off RockAuto, 2nd Amazon, 3rd junk yard, 4th home depot (hack job)

also look for nissan maxima parts if you cant find infiniti stuff

 

From my local Autozone, Pepboys, Napa, Oreilys etc

 

@wezmykat and Wizard, thanks for pointers. The problem I have is I've been to Oreillys and back with a heater hose that is definitely not an IACV hose. On rockauto I can locate IACV, but also no IACV hose. What keywords/product number shall I search for?

 

So on rock auto, stuff that is not vehicle-specific (can be used on more than one vehicle) will not be found under the car itself
It will be located under Tools & Universal Parts

Here is an example:
https://www.rockauto.com/en/tools/ho...acuum+hose,230

so you find what you need, then you cut it to size.
VERY important is that you are aware of OD (outer diameter) and ID (inner diameter) for all hose stuff

This is how I fixed my leaks in the transmission and fuel lines, the parts were hundreds a piece, I just got some 25 foot hose and cut it myself as needed, saved a fortune.
Then make sure you get some quality clamps to hold it all together.