I just want to make sure the O2 sensors from gmpartsdirect.com are ACDelcos. It only makes sense. I hear the Boschs are crap.

And the p/n is 25312184 for a 94 right?

 

get the delcos and yes gmpartsdirect's stuff is delco.

 

Another vote for delco's. Boschs worked fine for me too, but only couple of month...

 

Delco all the way!

Jeff

 

You could save your self some money and get these Delphi sensors. http://store.getgmparts.com/es10006.html

GM, AC Delco and Delphi are all the same parts but now Delphi is offering the parts. Those 3 listed above use the sensors manufactured by Standard Auto Parts. The reason many people have trouble with sensors like the Bosch is they are made to a larger range of voltages so they can use the same sensor in many different applications. Many vehicles like my 99 p/up can't use them and set a code.

 

D for Delco.