What is the exhaust manifold stud size for 4.0L V6?

[radlynx]

I've been searching online regarding the exhaust stud and nut for my exhaust manifold but for some reason, there are a lot of sizes out there and did not find it somehow.

does anyone have the correct size stud for the cat that's attached to the engine? I have mine so rusted that I thought of replacing only the stud and nuts to keep my CAT secure. I just don't want that during a long trip, the CAT would separate from the engine.

 

[iBison]

I've been searching online regarding the exhaust stud and nut for my exhaust manifold but for some reason, there are a lot of sizes out there and did not find it somehow.

does anyone have the correct size stud for the cat that's attached to the engine? I have mine so rusted that I thought of replacing only the stud and nuts to keep my CAT secure. I just don't want that during a long trip, the CAT would separate from the engine.

You're not going to find the right size, except at toyota dealer and they are around 5 or 7 dollars. None of the ones at ANY of the parts places. hardware stores or fastenall stores sell the right size. You can get the right threads, but the studs have a break in the center and you won't find any with the right length ends, anywhere. I think when we did my head gaskets we found some close and used them. We made sure they were not bottomed out in the heads. I cant remember if they had a break in the middle or not. When we took them out some of the nuts came off, some of the studs came out with the nut and we broke 1 but got it out with vice grips after the manifolds were off. Spray them down with Kroil or PB a few times over a day or so ahead.

 

[radlynx]

Thank you! I guess i'll just go to the Toyota dealer. I've been looking for so long and never thought of the dealer. I appreciate the info.

You're not going to find the right size, except at toyota dealer and they are around 5 or 7 dollars. None of the ones at ANY of the parts places. hardware stores or fastenall stores sell the right size. You can get the right threads, but the studs have a break in the center and you won't find any with the right length ends, anywhere. I think when we did my head gaskets we found some close and used them. We made sure they were not bottomed out in the heads. I cant remember if they had a break in the middle or not. When we took them out some of the nuts came off, some of the studs came out with the nut and we broke 1 but got it out with vice grips after the manifolds were off. Spray them down with Kroil or PB a few times over a day or so ahead.