234-4404 39210-23750 Oxygen O2 Sensor Compatible with Hyundai Accent Elantra 2001-2011,Tiburon Tucson 2003-2009, Kia Rio Rio5 2006-2011,Spectra Spectra5 2004 2005 2006 2007 2008 2009,3921023750

I bought two of these for my Hyundai Accent 2009 1.6 GLS, mainly to change the downstream sensor (located approximately right side of middle in line with the front tires, just past what looks to be a front muffler - weaved material- for those of you having trouble finding yours on the same type Accent).My old sensor threw a code, and by the time I got home (three hours) it had thrown another. P0138 and P0139. I decided on these because they were economical and one of the few products here that claimed a warranty - always a good sign compared to none.I struggled to get my old sensor off, but eventually it did. I got one of the special sensor 3/8 drive sockets, which caused some problems so I added the hose clamp trick to it to prevent it from stripping the sides anymore (YouTube it if you need to), and it worked like a charm after a week and a half of using penetrating oil on a regular basis.Like one of the other reviews about an Accent, which actually really convinced me to buy this product, I had a great experience after install. I only had to disconnect the battery for an hour and a half then start it up for the sensor to wake and stop throwing a code. The first time I started it up it was still there and I remembered that disconnecting the battery was supposed to reset it some.I’ve never changed an o2 sensor myself so I was quite happy it was plug and play. The clip went in like butter, and the problem getting the base in was totally the rust of the exhaust pipes and not this.Will be changing my upstream sensor in a couple weeks and will be using this product for that as well. :)

Fit fine on Hyundai

My Kia Rio 2010 had a check engine light on and for the codes we knew it was because of the oxygen sensor, so I boght this one but my mechanic had to figure out a creative way of screwing it because it didnt match, fortunately he is a very creative man and found the way, it solved the problem since now my kia doesnt have the check engine light. thanks!

After paying far too much and getting no answers from the repair shop, a friend suggested this product. It worked and saved me from another trip to the mechanic.

I'm very happy with my parts 😊 I don't have any complain . thanks you

Did not work. Had to take it to shop and buy another one.

can fit my car well

First I did not want to pay the dealers 270.00 for the O2 sensors. My 2004 Hyundai Accent had a bad upstream sensor as the code reader told me. I bought the offset O2 tool to use. I took off the heat shield over the exhaust and the sensor is right there in the front. The downstream sensor is located behind the Cat under the car. Be careful and look at You tube videos on how to remove stuck sensors as you can really mess things up. A local mechanic wanted over 500.00 to replace the sensors. I did it for the cost of the sensor and tool. First, I squirted Liquid wrench around the bottom of the sensor. I did for 3 days. I than used the offset tool and just tried to loosen it up. If it doesn't move don't force it as the tool could slip and round the sides of the sensor, not good. Watch the videos to loosen. The other thing you don't want to do once the sensor moves is too continue wrenching on it. Loosen it than tighten it a little at a time. Back and Forth until it is all the way out. This will prevent you from galling the threads which is bad and than you may have to retap the hole. I cut the wire as I would reuse the sensor and made for easier access. Once you get the sensor out, the new sensor came with anti-seize on the threads. I used a little bit more. Don't get the stuff below the threads. Put in the sensor and replace all the stuff that you removed to access the sensor. Check for codes. Also, it may take a while for the computer to wake up the sensor. This is what I did. I cleared the codes with my scanner which only cost me 53.00 here on amazon. Than I went to the smog station and the car failed. I didn't check to see that the sensor was awake. I brought the car home and disconnected the battery for about 2 hours. I than drove the car easily for about 60 miles at various speeds and up onto the freeway. My scanner finally gave the green light telling me everything was good. I took the car back to get the smog checked and it passed. The dealers say Hyundai's don't like aftermarket O2 sensors, but that is an untruth. My car has 146k on the meter. As soon as I started the car after the sensor replacement, it started running great. Do not drive your car if you have a bad upstream sensor as it will shortly destroy your Cat. the downstream sensor is not as critical as its just a monitor, but it should be replaced at the same time anyway if you replaced the upstream. Just as you are suppose to do with your lights. Both should be replaced at the same time. Watch the videos for more information and you can save a lot.