Disintegrating Wire Loom

[reardiff]

When changing out the thermostat recently I noticed the wire loom (corrugated plastic conduit) is very brittle and disintegrates just by touching it where the wiring goes across the water pump. I assume it's because of the heat and how close it is touching the pump.  I'm also assuming leaving this the way it is isn't a good idea with it sitting right on top of the water pump. Anyone have any suggestion on what to get that may withstand the heat better?  I couldn't find anything on-line or at the store that mentioned withstanding heat and figured it would just melt or do the same.  

 

[richard wysong]

It's called convoluted tubing and is available in most parts stores in different diameters

[mikeyk101]

You can also go to Amazon and search corrugated tubing. You will find plenty to choose from.

 

The split tubing is easiest for putting on existing wire looms.

Edited February 3, 2025 by mikeyk101

[reardiff]

Does the split/convoluted tubing offer any heat protection, or does it need to? Most of what I see says temp range up to 200, which is where it would be most of the time and likely why it crumbled to begin with.  I'm sure I'm way overthinking this, but having wiring bundle literally sitting on top of the water pump just doesn't sound like a great idea with as hot as it gets. But on the other hand, that's how it came from the factory with just that thin plastic split tubing over it. 

[txab]

23 hours ago, richard wysong said:

It's called convoluted tubing and is available in most parts stores in different diameters

Also Harbor Freight