[rfmaster]

Originally Posted by pancake

Attachment 467674

Is this the correct o2 sensor? Only $29.00??? Junk?


Found it here.
http://www.car-stuff.com/carparts/gm...4000334534.htm

Pancake
USOS-4000 4 wire NBO
I do not know - listing comes back to generic O2 heated unit covering many different models and makes. My guess this is a classic low cost generic replacement unit. It may work, but it will not be optimum since GM ECM close loop algorithms were optimized for Delco O2 sensors. Still, it should work - it just might not be optimum.

Caveat Emperor!

//RF