Hello,
I am replacing my rusted, leaking catalyst asap and I need some help to identify the bolt size. I have all the parts I need except two bolts (90105-10388) won't arrive for a few days. I was hoping to be able to identify these bolts so I could just grab some locally. Is there any way to do this?
Regards,
Matthew

 

Are we talking catalytic converter? If so, especially if it's rusted, you aren't getting those bolts out. Cut them with a sawzall and replace with new nuts and bolts. My converted wasn't rusted at all, and I still needed to cut the bolts and nuts off one side. Don't remember the size but you'll be able to tell just looking under there and finding something comparable at the store.

 

I have a new bracket that has captured nuts. I was just hoping there was a way to surmise or look up length and size from the part number to make life easier.

 

Alright. Not knowing what vehicle we're talking about I can't speak to that. On my Tacoma, the welded nuts on one side were part of the connecting exhaust pipe, so no way to replace them without replacing the entire exhaust section. I'm kind of remembering on the downstream side a bracket that I took out and cut off the nuts so that sounds right. Someone here definitely knows the size and thread pitch of those bolts, but it's not me.

I find you won't get many responses during weekends on this forum. People tend to be out doing stuff.

 

THanks,
My bad, 98 4runner. The bolts in question is from the cat section to the muffler section of the exhaust. They go through the cat flange into the hanger / bracket (17503-62050) on the muffler side that has captured nuts. They are m10 1.25 and I'll update length when I get it together.

 

M10x1.25 x 35mm stainless for the next person looking.