Does anyone know what the correct Grainger part number is for a typical thermocouple for a pyro install? I bought a set of used gauges for my Goat and I need to get a new thermocouple, but so for there is 12 pages of thermocouples on the Grainger site and a few dozen Type J models which is what i think I need.

Any help would be greatly appreciated.

Thanks

 

What is the brand of the gage. Isspro, AutoMeter, S&W run type K thermocouples.

Using a type J thermocouple on a type K gage is going to throw your reading at least 200 degrees low.

 

The pyro is a VDO. The leads from the gauge to the probe are like all the other ones I've ever seen with the ends being a red and yellow wire with screws.

 

Almost all EGT gauges use a K type...
The others don't normally read high enough.
Watch the K types also, I've run across a few that only read to ~ 1200*.
You need a min of 1600* and I use 1800* for a surge safety margin - not that I've ever got above 1300* - at least not much

 

Red & Yellow is a type "K" thermocouple. Buy the one with the lead lengths you need. They should all be about the same. A thermocouple is just twisted wires inside a metal tube.