Who makes the best 02 Sensors?

[nailbomb3]

I've already had one Bosch that was bad out of the box. That's the only thing that's sold locally.

So, what should I be ordering? Thanks

[00Beast]

AC Delco or Denso. Those have proven to be the best on the 3800's.

[nailbomb3]

AC Delco or Denso. Those have proven to be the best on the 3800's.

Do you have a part number for the Delco? I think I can get a Denso, but have to order that one as well.

[nailbomb3]

Ahh, I THINK this is the Delco?

http://www.rockauto.com/catalog/moreinf ... cc=1247284

How does one change the female connector as well? The description of the part shows it has a terminal of some type on the wire.

[SSEBonne4evr]

AC Delco or Denso. Those have proven to be the best on the 3800's.

^^This?"^^

[Backhoe]

I just picked up an NTK, where might they rate?

Sorry, I just saw its an 89, probably diff from the heated ones.

[wjcollier07]

NTK makes excellent oxygen sensors. They're OEM on many Ford vehicles. Denso makes nearly all the sensors for modern GM and all Toyota cars/trucks.

Those are definitely the best two out there from what I've seen in the aspects of performance and longevity.

[nailbomb3]

Denso's are 10 bucks from Rock Auto

[1oldman]

My experience, Denso, AC Delco, and Delphi. I learned the had way Bosch is not very good. - BC

[nailbomb3]

What problems did YOU have with your Bosch?

My first one was DRT right out of the box