Does anyone know the size of the o2 sensor bung on a 97 maxima the sensor that is the one after the catalytic converter?

 

are you talking about the bolt size? I bought the O2 socket when I did mine, but it looks a whole lot like maybe a 22mm. Anyone else with exact numbers in front of them?

 

nope but if u want u can take off the o2 and drive it like to for a bit so u can get the right size.....thats what i did. its hard to find them so i just went to a well known exhaust shop that i knew had alot of customers to get one and welded it after the cat and welded the old hole closed.

 

m18-1.5
Sensor is the standard 7/8" to remove

IIRC.

 

Lol thank you