Need an oxygen sensor for a '97 tj, is this a dealer only item (like I've been told), or is there somewhere else I can get them? Thnks in advance:cool:

Napa, AutoZone, Kragen, yada yada yada

Most parts stores can get you one but, I prefer the factroy O2 sensors. When it comes to sensors i prefer factroy replacement. Some majorly cheap replacement may not be as sensitive or accurate as a cheapy. All depends on how much you want to spend.

They should be available in the aftermarket. There are a few exceptions taht are factory only. Mazda is the only one that comes to mind right now. As long as you get a direct fit, you should not have a problem. Stay away from the cut and splice type.

get the BOSCH o2 sensor, this is an easily overlooked peice but it is CRITICAL for the brain's function. it effects mileage, performance etc etc