Ouch!
 

pep boys wants $170 for 02 sensor 1990 300se.found oem bosch $122.95 online at auto parts wharehouse.anyone know of a cheaper place?

I have heard of people using a generic application from Bosch. If I remember correctly they were around $50. I think the application was from a early 90s Ford 5.0 engine.

ok. will check on this thanks for input

Here is a thread you might want to look at.

http://www.peachparts.com/shopforum/showthread.php?t=270560

I don't feel like doing any soldering under there.I just hope I can get the old one out! it was replaced 15k ago by a shop so hopfully it wont be fused in there.I looked under there today not much room for wrenchs or sockets.its on top of the ex pipe under the pass seat

found one for $78 amazon
Bosch 13146 Oxygen Sensor, OE Type Fitment

Euro Parts Direct has one for $75+shipping. I have ordered plenty of parts from them and have not had an issue with them.
http://www.europartsdirect.com/

just checked them out.no o2 sensors listed?

the one on amazon looks good same blue wire and gromment .shipping free!

Hey lowesguy, since you're new to the forum, you may not be aware that it is sponsored by an internet parts house. How about giving Peach Parts your business? Or at least not using their forum to ask about competitors.

Just curious, if it's only 15k old, why are you replacing it?

Is the car showing any symptoms of a running problem?

Ususally antisieze paste is pre applied to the threads of new O2 sensors so it shouldn't be too hard to remove.

As far as removing the old one a special socket can be had at most parts stores to remove the sensor. Even Harbor Freight sells one for $5.00 or so. It's a crowfoot looking affair that goes on a 3/8 extension.

Thats not painful.. You want painful, own a cabriolet. :D

Select your car and in the keyword search, search oxygen.

http://img834.imageshack.us/img834/117/o2sensorz.jpg