o2 sensor $234.95

Buy It Now for $235.95 Are You F$*$ing Kidding me.
Why is a o2 for a 2002 Tacoma sooooo expensive and for everything else its less than half that.
Wouldn't other years be the same

 

thats insane! I goth of mine from Rockauto.com. they had the best price.

 

Holy Crap!!, That Awesome Thanks for that.
I need the first sensor which is a 4 wire- DENSO Part # 2344189 so it looks like this is the one I need right.

 

Should be the one!

 

You looking for the front or rear? I have a 2003 Double Cab V6. I replaced the front with Denso 234-9001. I got mine from Amazon for $124.36. That was more than 50% cheaper than going with the local stealership.

$137 Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor with 10.6” 4-Wire Harness, for Auto Trans Equipped Vehicles

http://www.amazon.com/Denso-234-9001-Air-Fuel-Sensor/dp/B000C5WD2Q

The rear is part number 234-4189. I'm not sure why you would want to replace the rear one. You can buy BOTH front and rear on that Amazon link for $197, if you want.

Double check your part numbers!!

 

If you get the o2 sensor that you have to splice together yourself. Its WAAAAAAYYYYYY cheaper then the plug and play. Its really easy to install with the ones you have to slice.

 

At Rockauto, the front one is 85 bucks and its a Denzo

 

Use care please.

The sensor number you listed is the post cat sensor and that is an O2 sensor. The pre cat sensor (upstream) is not a traditional O2 sensor. It is an AFR sensor or wide band. The price is not the same. Read the description of location carefully to be sure you get the correct unit that you need. A traditional oxygen sensor and an Air Fuel Ratio sensor look similar but work differently. Buying on price is not the answer to your question. Even RockAuto is over $170 for every FRONT sensor listed. An oxygen sensor just detects a rich or lean condition in the exhause and allows the system to trim fuel control up or down. An AFR sensor can detect the actual amount of rich or lean for better fuel control and better feedgass into the catalyst. This GREATLY improves emission control and fuel control.......as well as cost.

Which one requires replacement on your truck?

HTH

 

Well that certanly puts a damper on things, it is the precat that I need. Thanks Shadow I beleive you are right I remember someone saying something about it before, Im going to scan it again. So this brings us back to the original statement WHY SO MUCH!! any other vehicle is way cheaper.

 

Well, the why is it boils down to the technology. Most modern cars that certify ULEV or SULEV are running the new AFR sensors, not just Toyota. These new sensors do not just produce a voltage like the old units. Some systems actually modify the amount of current and the direction of flow in them, all based on an accurate reading of just HOW rich or lean the vehicle is running. They also heat up and come on line MUCH faster than the older technology. Older vehicles could take two minutes or more to enter "closed loop" fuel control. Many new vehicles are in closed loop in 20 seconds or less. Some new systems are in closed loop during cranking! Think of the old sensors being able to answer yes or no (Rich or Lean) and the new ones can say you are off by 2% from target.

Again, it is not just Toyota using the new sensors. You can find some of these units on other vehicles that are $300+ dollars. I know it sucks, but they really do a better job controlling fuel delivery.

 

Just an update, looks like the prices dropped at RockAuto, the o2 I need is now 131.79. Good news.

 

Amazon dropped also to 110.97, I guess as these vehicles get older the prices are finally dropping, still a rip off if you ask me.

 

Dang. They must use unobtainium or something to make them

 

I just replace both sensors about a week ago in my 2002 4x4 xtracab with a v6....got both sensors from rockauto.com...they had the best prices i could find....9001 was the A/F Ratio sensor(front sensor) and 4189 was the rear sensor(O2 sensor)...check engine light is now history....if you are going to do 1 of them, do them both.....

 

Im curious about the plug wires, only 34 bucks at Amazon. I paid over a hundred a few years back from Toyota.

 

The wires they are selling for $34, Im wondering if they are OEM, thats pretty cheap.
Hey Crimson how much did you pay for both sensors.