i want to replace my O2 sensor with a 3\4 wire O2 sensor.. so i did a search and i found specific part #'s for bosch and AC Delco. but my local autozone doesn't have AC Delco O2 sensors. only bosch and i heard some bad things about them. and how AC Delco is better.. i haven't tried Napa or Pep Boys.. but i thought about seeing how much they are from gmpartsdirect.com i just need a part #

 

sorry no pn, but it may be easier to find out what car or truck used 3 or 4 wire and ask for one to fit. as far as i know all are the same only harness and length of wire is differant and you'll be wireing it to fit your car so that wouldn't mastter.

 

are the GM units better quality then Bosch and AC Delco?

 

I think the 1991 chevy full size vans had a 3 wire.

 

The AC Delco # is 213-632 '91'vette ZR1
Last 3 numbers of the GM part# is 708 maybe they can cross it for you.

 

The 213-632 was used in lots of applications for GM. Check the cross-reference chart at http://www.acdelco.com/html/catalog/index.htm.

Check CorvetteForum.com out. There's a tech article about heated 02 sensors there. The author mentions he used a Bosch 13190. It retails for about $43 at Advance. The oxygen sensor is for a Chrysler mini-van application. The ZR-1 sensor is Bosch 13077.

I believe the general consensus is that Bosch manufactures the majority of oxygen sensors. Even that AC-Delco or original GM is probably made by them.

 

Not to re hash, but I also recently went looking for the part number for a gm O2 sensor and didn't find anything here so I looked elsewhere and I came up with 25162693

I believe thats correct. Not trying to archive incorrect info.
Correct me if I'm wrong.