O2 sensor mounting stud/nut

[Nelsonmd]

I glanced at the O2 sensor I replaced a while back, and I noticed that the bolt I used in place of one of the studs is super rusted already.

If I want to go back and put in a new OEM stud and nut, does anyone know the PN's? I can't seem to find it anywhere.

I think I still have the old stud, but it has a nut rusted onto it, and if it is only $1-2, then I'd rather not waste my time on it.

 

[TheDurk]

I glanced at the O2 sensor I replaced a while back, and I noticed that the bolt I used in place of one of the studs is super rusted already.

If I want to go back and put in a new OEM stud and nut, does anyone know the PN's? I can't seem to find it anywhere.

I think I still have the old stud, but it has a nut rusted onto it, and if it is only $1-2, then I'd rather not waste my time on it.

Matt, the nuts are easy: PN# 90179-08059 (S/S nut M8-1.25)

I don't think the studs exist as a separate part, they just come as part of the assembly (Cat or muffler) that they are on.

Have you tried crushing the nut in a vise? Mine were ready to just crumble off, while the stud seemed much harder and was relatively easy to clean up.

 

[Nelsonmd]

Yeah, I found the nut, but I am hoping to avoid having to deal with crushing the nut off. I am swapping out the O2 sensor on my pastor's 96 LTD, and if his are as messed up as mine were, I'd like to have replacements on hand.

There are several studs listed on the exhaust manifold page, but I don't have a way to tell if they are M8 or not. Maybe I will just have to replace it with a regular bolt and hope it doesn't completely rust in there.