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NTK Performance Oxygen Sensor - Front (99-09 V6; 99-04 4.6L)

Market Price $34.49 You Save 13% ($4.50)
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$29.99 (each)

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  • Item 64044
  • MPN# 22060

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    Features, Video & Details

    • Regain Lost Power
    • Direct OEM Style Replacement
    • Plug and Play to Factory Harness
    • Front (Upstream) O2 Sensor
    • Sold Individually
    • Fits 99-09 V6, 99-04 GT, 03-04 Mach1, 01 Bullitt, 99-04 Cobra

    Review & Installation Video

    Review & Install Video

    The NTK Performance Oxygen Sensor is available for any '99 to '09 V6 owner and '99 to '04 4.6 liter owner, who's in need of a replacement for a bad front sensor in order to turn off the check engine light, and improve engine performance and exhaust flow. It's a pretty inexpensive upgrade coming in right under the $30 mark for this sensor. The installation doesn't take too much to complete, so, expect one out of three wrenches on our difficulty meter which I'll show you later on. A bad oxygen sensor can be the bane of quite a few issues for your New Edge and early S197. If you're experiencing a poor performance, like engine bogging down, feeling sluggish, or if you've got a lousy fuel economy and the check engine light is on, then you probably need a new O2 sensor. If you've got a tuner or a code reader, you'll be able to tell which "X" sensor exactly needs to be replaced, if that's the issue. If you've narrowed it down to a front or upstream sensor, then this is the perfect upgrade here because it is a direct fit replacement. This particular O2 sensor from NTK was designed with a waterproof factory-fitted connector to ensure a long-lasting performance and a perfect fit each time, since it is an OEM styling. With a bad factory O2, you'll most likely fail your local emissions test, if it applies in your area. It is pretty straight forward, so you should be able to tackle this one and take care of it yourself in your driveway. This one, you can pick up currently for just about 26 bucks which isn't a bad price in my opinion. The install, since it is pretty simple, will get one out of three wrenches on our difficulty meter. This shouldn't take longer than about an hour or so. But, I say, you can probably get it done in a little less. You need a jack and jack stand to probably secure the car in the air, and you'll need a ratchet and an O2 sensor socket since it is a specific one, or you could just use a 22 millimeter wrench. Once the Mustang is in the air and it's supported on stands, you can use your O2 sensor socket or wrench to remove the old sensor from the exhaust manifold or headers. Once that's removed, you can unplug the other end from the wiring harness, of course. The NTK Sensor is built to be a direct bolt-on like I said a bunch of times in this video. So, you should be able to just pop it right into the same place using the same tools and plug it into the same stock harness, and you'll be good to go. Just to wrap this one up, if you're the owner of a '99 to '09 V6 or a '99 to '04 4.6 liter Mustang, you might wanna check out the NTK Performance Front Oxygen Sensor, which is available right here at

    Regain Lost Power. A bad oxygen (aka O2) sensor can cause poor performance, lousy fuel economy, the dreaded check engine light, and even cause you to fail emissions testing. So replace those worn out sensors with brand new NTK sensors for superior, consistent performance. 

    Exceeds OEM Quality. Designed with a waterproof factory-fitted connector to ensure a perfect fit every time, NTK's oxygen sensors meet or exceed OE specifications and are built with the highest quality materials and craftsmanship to ensure a superior quality direct replacement for your worn or failed OEM sensors.

    Application. This NTK Performance Oxygen Sensor is designed to be a direct performance replacement for the Mustang. please see the NTK Performance Oxygen Sensor - Front (upstream) applications below:
    • 1999 to 2009 V6 Mustangs
    • 1999 to 2004 GT Mustangs
    • 2003 to 2004 Mach 1 Mustangs
    • 2001 Bullitt Mustangs
    • 1999 to 2004 SVT Cobra Mustangs.

    Fitment: 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Details

    What's in the Box
    • (1) Oxygen Sensor - Front
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 99, 01, 03, 04
    • GT - 99, 00, 01, 02, 03, 04
    • Mach 1 - 03, 04
    • V6 - 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09

    People Who Bought This Item Also Bought

    Most Helpful Reviews

    stupid check engine light

    instant fix for the check engine light due to the off road pipes

    Helpful (16)


    Exactly as described.

    Helpful (8)

    Overall Rating 4.8 out of 5 stars
    Read All 54 Reviews

    Customer Photos (3) Submit Your Photo

    View All 3 Photos

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    12 Questions / 6 Answers

    Ask a Question

    hello I have a 2003 mustang gt an I wanted to know how many o2 sensors I would need my service engine is on an it pulled up the o2 sensor code I want to replace them just need to how many I need to replace.


    • There are several O2 sensor codes you can get, and the code will tell you which sensor circuit the issue exists in. In the code description you should see bank and sensor. Bank 1 is passenger side, Bank 2 is driver side. Sensor 1 would be your upstream/front O2 Sensor, and Sensor 2 would be the back/downstream sensor. For example, Bank 1 sensor 1 would be the front sensor on the passenger side. Keep in mind that other factors can also effect this, such as corrosion in the wiring or connectors, or damaged/broken/shorted wiring.

      Rob D

    Helpful (1)

    Will this fit my 2005 Mustang GT?


    • Hello, the NTK Performance Oxygen Sensor - Front (99-09 V6; 99-04 4.6L) will not fit with your 2005 Mustang GT.


    Helpful (0)

    Is this O2 sensor same for the left and right upstream for a 2002 gt?


    • The NTK Performance Oxygen Sensor will be the same for both the left and right side of the vehicle.

      Rob D

    Helpful (0)

    Only one of my front O2 sensors is failing. Is it okay to just replace the one that is failing or is getting two so both fronts match a better idea?


    • Replacing one O2 sensor can be done, however it is typically recommended to replace them in pairs, as when one fails, the other typically is not too far behind. The NTK Performance Oxygen Sensor is compatible with OEM sensors, so there should be no issue with a single one working with the stock sensor on the other side.

      Rob D

    Helpful (0)

    I wanted to check how Oxygen Sensors are needed for a 2006 V6. Thank you.


    • You need a total of 4 O2 sensors, two front and two rear.


    Helpful (0)

    Will this fit my 2007 GT? My car started throwing the p0133 code so i think its time to replace my sensors.


    • This o2 sensor would not fit on a 2007 Mustang GT, we apologize. We do not currently offer the o2 sensor for your year-model at this time, however, we are always adding to our product line and I would keep an eye out for an added o2 sensor.


    Helpful (0)

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    Customer Reviews (54) Write a Review

    Overall Rating 4.8

    out of 5 stars

    • 5/5

      July 10, 2010

      stupid check engine light

      instant fix for the check engine light due to the off road pipes


      Helpful (16)

    • 5/5

      November 15, 2009


      Exactly as described.


      Helpful (8)

    • 4/5

      October 16, 2010

      Works perfect

      Small increase in fuel economy extra extra 10-20 kms a tank but a big increase in power car feels much better accelerating especially at high speeds no stumbles and I can chirp the tires cruising at 100 now


      Helpful (6)

    • 3/5

      June 06, 2013

      Not bad when they wor

      I put these sensors in when I did the offroad xpipe on my v6 and long tube headers with an slp loudmouth setup...the sensors worked for 4 months but now they have both stopped reading, now I have to replace again.


      Year: 2003 Submodel: V6 Idaho

      Helpful (5)

      • Response from AmericanMuscle

        This sensor naturally should have lasted you a long while. I'm sorry it didn't on your Mustang. We can get you a replacement shipped out right away.

        Lisa, Customer Care

    • 5/5

      November 18, 2009

      better Sensor

      i got this with bbk shorty headers, x pip v6 o/r and catback exhaust setup.. I does Wonders =)

      Joel Zervoulakos

      Helpful (5)

    • 5/5

      June 05, 2012

      good bye MIL

      i have a BBK off road x-pipe on my 2000 GT i also have MIL eleminators, but my MIL kept poping up i pulled the codes it was saying my front two o2 sensors were not reading up to opperating temp. so i bought two of these hoping that it would fix my problem and it did. my car also runs a whole lot better.


      Year: 2000 Submodel: GT north carolina

      Helpful (4)

    • 5/5

      February 10, 2017


      Bought two o2 sensors put them on the next morning. When I cranked the car up it ran kinda rough. Took it for a test drive, when I put it in neutral the RPMS when up to 3K and dropped down constantly. Then it threw on the check engine light. I hooked it up to code reader and it read two lean codes. Called American muscle they told me to take it to shop to determine if I had faulty sensor other wise they can't send me another one. I switched the drivers side out with the old one and it ran ok. I am about to take it to shop so they can hook it up to computer and tell me what's wrong with it. But I can't judge the product till I determine if the product was faulty.


      Year: 2006 Submodel: V6

      Helpful (3)

    • 5/5

      July 08, 2011

      02 sensor codes

      I have an '03 GT with SLP long tubes and other mods. My tune has a built in 02 sensor delay, but I started getting an 02 sensor slow to respond code and then an 02 heater code. I checked some other things first then decided to replace the sensors. I could clear the DTC with my tuner but it kept coming on every third time I'd start the car. They were easy to install and it cleared the problem up. The check engine light hasn't came back on and the idle even sounds better. I hope it helps my gas mileage out too. It's too early to tell yet.


      Year: 2003 Submodel: GT

      Helpful (3)

    • 5/5

      October 20, 2010

      Great Part

      The O2 sensors worked great and the gas mileage went up as soon as I put them back in, and got even better once the cpu adjusted to them. Install was no problem at all ,and once I cleared the thrown codes, they check engine light never came back on.

      Jon B

      Helpful (3)

    • 5/5

      January 12, 2017

      Quick delivery.

      Indianapolis resident. Arrived really soon. Ordered O2 sensors. I got O2 sensors. I put them on, and they worked. 5/7 will continue buying from AM.


      Year: 2008 Submodel: GT

      Helpful (2)

    • 5/5

      April 18, 2016

      Works great, no issues

      Had the shop put these on when they installed the catback and headers and they work great! no engine light so i could not be happier.


      Year: 2002 Submodel: V6

      Helpful (2)

    • 5/5

      July 09, 2015

      O2 sensors are important maintenance items!

      I installed this on my 2008 Bullitt (it has 100k miles or 162k km for Canadians ). All I can say is, the car doesn't afterfire like crazy anymore, thankfully. My gas mileage got a tiny bit better, by like 0.5mpg, according to my dash. So I know my O2s are overdue. I don't know if it's by coincidence, but my exhaust trumpeting has reduced by a bit. Performance wise, I do not notice any difference at all. This sensor is compatible with all 1999-2010 mustangs. Another side note, Ford's O2 sensors are made by NTK as well. You will see their logo on the original O2 sensor.


      Year: 2008 Submodel: Bullitt Surrey, BC

      Helpful (2)

    • 5/5

      September 23, 2016

      Good price easy install

      Replaced my worn out O2 sensors these are a good price and very easy to install


      Year: 2003 Submodel: Cobra

      Helpful (1)

    • 5/5

      August 30, 2016

      Good choice with the NTX Performance O2 sensors.

      My extremely well cared for 2000 V6 5spd with many bolt on upgrades responded even better than expected when I upgraded to the NTX Performance O2 sensors in my "Pypes" cat delete X pipe. The (just a little) longer wires allowed me to replace my O2 wire harness back to there original location, the engine performance is a lot crisper, also my exhaust condition has improved greatly.


      Year: 2000 Submodel: V6

      Helpful (1)

    • 5/5

      June 23, 2016

      O2 Sensor - Improved Fuel Economy

      Packaged great. Came with anti-seize already applied. The cord is a bit shorter than stock so it was a stretch for me to connect but it worked fine. I have a Pypes Off Road H-Pipe which I believe have different locations for the O2 sensors, slightly further away. I have about 65,000 miles on my car. I put these in and I immediately noticed an improvement in fuel economy. People on forums said that O2 sensors don't go bad until OBD II codes start getting thrown, but I have to disagree. These O2 sensors have clearly made a difference for me.


      Year: 2004 Submodel: GT

      Helpful (1)

    • 4/5

      June 15, 2016

      Finally fixed the problem

      These are definitely of the caliber of factor sensors. If you have long tubes you will have a slow response but that's normal a good tune will fix that!


      Year: 2004 Submodel: GT

      Helpful (1)

    • 5/5

      May 16, 2016

      Fixed the rich condition!

      Fixed the rich condition i was having and also increased gas mileage by alot!, great buy for anyone trying to wake up there mustang


      Year: 2000 Submodel: GT

      Helpful (1)

    • 5/5

      May 11, 2012

      O2 Sensor

      Easy install, got rid of check engine light, got the job done.


      Year: 1999 Submodel: GT Malvern PA

      Helpful (1)

    • 5/5

      May 08, 2011


      I just installed this o2 sensor and really did the trick, check engine light is off and car is running great again. Definitely brought back a good couple hp.


      Year: 2002 Submodel: GT

      Helpful (1)

    • 5/5

      December 15, 2017

      Only way to go

      Was using Mil eliminators for a while after installing Headers, Mid Pipe (flow thru cats) and exhaust to turn off the service engine light. Just replace all O2 sensors I'm good to go. A/M only sells whats right and trouble free for your stang


      Year: 2002 Submodel: GT

      Helpful (0)

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