So I bought my truck a couple years ago (see sig for details) and today I was under there replacing the glow plugs on the driver side when I ran into this...

Is this for a gauge of some sort? Based on what I have seen here, it looks to me like it is an exhaust temp gauge that someone cut out right before they sold it? Could that be true?

Please see pictures.

yeppers some one cut the pyro

pull the shrink wrap off it should be 2 screw get a lead and guage and you good to go

yes that is a pyrometer, and that is on the D-side right? That may be a BD Manifold also.

Riley

Yes, it appears to be a cut EGT probe. You can install a new on using the existing hole and the new probe that comes with the EGT/Pyrometer gauge. Likely they had an edge or similar tuner that used the pyrometer and removed it before trade in.

<Wow, everyone was fast on this.....>

I am always so slow:)

Hmm, while the truck is running fine and I have had no worries about it being raced/etc, I am a little disappointed in myself for not checking for that. Anything else I should check?