[Cumminsguy]

Just finished oil cooler replacement as well as standpipes dummy plugs and y pipe couple other odds and ends. I just found a bolt on my bench curious where it goes and how critical it is any help identifying it would be awesome so I don't have to go tearing this back apart looking 🤦

 

[Jax]

Without a ruler next to it, I cannot tell, but it looks like an oil cooler bolt for a 7.3L.

However, that bolt and a nut would also secure an up-pipe to an exhaust manifold.

Again, I am 7.3L, not 6.0; Please post a picture with a ruler next to it.

 

[Weatherlite]

Ruler would help, as well as telling us what socket fits the head. I'm thinking it looks a lot like the oil rail hold-down bolt.....but some years had regular bolts and some had torx bolts and I can't remember which style the '06 has off the top of my head.

 

[matthewd11]

06 was torx for oil rails.

That looks like exhaust manifold to up pipe bolt

 

[Jax]

06 was torx for oil rails.

That looks like exhaust manifold to up pipe bolt

Then that is what it is.

@Cumminsguy - did you get new bolts with your up-pipe kit?

 

[matthewd11]

That is a new unused bolt so if you reused your old ones then that explains it

 

[Cumminsguy]

I can post a pic with a measurement but I did get new uppipe. They are 10mm heads. If I remember right all the oil cooler bolts were short.

 

[matthewd11]

That’s not an oil cooler bolt. I’m 99% sure that’s what I mentioned before. Front and rear cover bolts are similar but you didn’t remove those. That’s an M8 x1.25 bolt. Nothing else on that motor uses that bolt in the photo.

 

[Cumminsguy]

I didn't take the oil rail off but mightve started taking bolts out and then realized it didn't need to come out

 

[matthewd11]

That’s not an oil rail bolt either.

 

[Cumminsguy]

That’s not an oil rail bolt either.

Interesting. Thoughts on what it could be

 

[matthewd11]

Maybe you got an extra new bolt for the up pipe you didn’t use? That bolt looks unused. I told you what I thought it was in a previous post.

 

[Cumminsguy]

I found it last night it was late buy it had some oil on it so I assumed it came out of somewhere. When I get back to it in a little while I'll look closer

 

[matthewd11]

You didn’t take any of the small head bolts out along the top near the oil cooler did you? That size/length bolt could be used there also. Only other spot I just thought of too are rocker box to head bolts but you would have had to take the oil rail out for those.

 

[Cumminsguy]

No I didn't take any of the head bolts out

 

[matthewd11]

Don’t know what to tell you then. Have a look around.

 

[Cumminsguy]