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NTK Performance Oxygen Sensor (94-04 V8; 95-09 V6)

Item 64045
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    Features, Video & Details

    • Regain Lost Power
    • Direct OEM Style Replacement
    • Plug and Play to Factory Harness
    • Sold Individually
    • Front: 94-95 GT and Cobra
    • Rear: 95-09 V6, 94-04 GT, 03-04 Mach 1, 01 Bullitt, 94-04 Cobra

    Review & Installation Video

    Review & Install Video

    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 applications below:

    Front (upstream):
    • 1994 to 1995 GT Mustangs
    • 1994 to 1995 Cobra Mustangs

    Rear (downstream):

    • 1995 to 2009 V6 Mustangs
    • 1994 to 2004 GT Mustangs
    • 1994 to 2004 Cobra Mustangs
    • 2001 Bullitt Mustangs
    • 2003 to 2004 Mach 1 Mustangs

    Fitment: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Details

    MPN# 22500

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Oxygen Sensor
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04
    • Cobra R - 95, 00
    • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
    • Mach 1 - 03, 04
    • V6 - 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09

      Customer Photos (7) Submit Your Photo

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        Questions & Answers (25)

        5 Top Rated Questions

        How many O2 sensors? How many front and rear O2 sensors would I need for a 98 V6 Mustang? Please help!

        • Eduardo, There are a total of 4 oxygen sensors for your model. There are 2 upstream of the catalytic converters and 2 downstream of the catalytic converters. If you don't have catalytic converters installed (i.e. you installed a off-road H-pipe or X-pipe), you will need to purchase the MIL eliminators to "trick" the computer or your check engine light will come on.

        Helpful (4) Show 4 more answers

        I have a 2005 V6 and want to replace all 4 sensors will this fit?

        • The NTK Performance Oxygen Sensor - Front (94-95 5.0L) - Rear (95-09 V6; 94-04 4.6L) will fit the 2005 V6 mustang how it will only fit for the rear sensors. You will need NTK Performance Oxygen Sensor - Front (99-09 V6; 99-04 4.6L) item number 64044 for the front.

        Helpful (3)

        I have a 2007 V6 and I want to replace all O2 sensors. How many do I need?? front and back? and will this one fit only rear or both?

        • This NTK Performance Oxygen Sensor will replace your downstream (rear) O2 sensors, of which you will have 2. The NTK Performance Oxygen Sensor linked below will replace your upstream (front) O2 sensors, of which you will also have 2.

        Helpful (2)

        How many 02 sensors does a 2001 Mustang V6 have and where are they located at?

        • The are four sensors. There are two before the cats, and two behind them, on each the driver and passenger side.

        Helpful (0)

        The instructions provide different torque specification for M12 and M18 sensor. How do I know if this sensor is M12 or M18?

        • This is a M18.

        Helpful (0)
        Post Your Question
        10 More Questions
        Where are the o2 sensors located on a 99 v6 mustang? And which ones are upstream and downstream 1 answer
        What is the warranty on it. 1 answer
        I have long tube headers with a off road xpipe and or no cats. Do i need the rear o2 sensers since they supposidly just read the air fuel to see if cats are working wich they arent there and will throw the code... Or would i be just as good getting 2 front o2 sensors and pluging the rear? I have none hooked up as of now... I know front 2 will make a difference but i dont think rears will. I could save the money for the screamin deamon coil pack and a tuner.... 1 answer
        I'm wondering, there are four wires on this sensor, two white and two grey. If installing on the rear, to which factory wires do the o2 sensor wires correspond to. I'm asking because the HEGO connector from the factory harness is broken off. 1 answer
        My diagnostic report says my 02 is biased/stuck rich on bank 2 sensor 1 same for bank 1 sensor 1. Question: What is bank 1, bank 2 and where is sensor 1? does this mean the front ones on both sides? 1 answer
        I have a 2001 mustang, how many Oxygen Sensor's does it have. 2 or 4? 1 answer
        What is the thread size? 1 answer
        How many 02 sensors are on my 2002 mustang GT 4.6LV8 1 answer
        I need oxygen sensor left rear bank will this work for this or can you recommend the right sensor 1 answer
        Can this be used as a front and rear oxgen sensor on my 1994 mustang 5.0 gt 1 answer

          Customer Reviews (87) Write a Review

          Overall Rating 4.9

          out of 5 stars

          • 5/5

            August 07, 2019

            Great product

            It works well, easy to install, no more check engine light


            Year: 2009 Submodel: V6

            Helpful (1)

          • 5/5

            June 17, 2019

            O 2

            Fast install less than 30 min fortunate came off easy. I didnt used any special tool just a 22mm combination wrench and some lubricant thats all very satisfied. I recommended.


            Year: 1994 Submodel: GT

            Helpful (0)

          • 5/5

            June 13, 2019

            Works great

            If you think you have any issues with o2s at all replace them these worked great for me


            Year: 1999 Submodel: Cobra

            Helpful (0)

          • 5/5

            June 09, 2019

            Worked great

            I had no troubles installing the sensor and it worked great.


            Year: 2001 Submodel: Bullitt

            Helpful (0)

          • 5/5

            January 31, 2019


            Working fine! Easy installation, liked the caps on the threads with gease.


            Year: 2002 Submodel: GT

            Helpful (1)

          • 5/5

            January 26, 2019

            NTK Performance Oxygen Sensor

            I had these installed with new X pipe. No check engine light.


            Year: 2001 Submodel: Bullitt

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            January 10, 2019

            O Sensor

            Like the fact that the threads were greased and had a protective cap on it!


            Year: 2002 Submodel: GT

            Helpful (2)

          • 5/5

            January 08, 2019

            good retailer

            Product seems to be working but my engine light is still on so my husband says we need to replace the other 2 as we only replaced 2


            Year: 2006 Submodel: V6

            Helpful (2)

          • 5/5

            January 07, 2019

            J's 97

            Installed with a new pypes catted x pipes and SLP Loudmouth ll exhaust and they worked perfectly.


            Year: 1997 Submodel: GT

            Helpful (2)

          • 5/5

            December 31, 2018

            5 star

            Plug and play cleared my codes and cars running great definitely worth the money . I would definitely reccomend this site to other mustang owners . I will continue to buy from this site


            Year: 1998 Submodel: V6

            Helpful (2)

          • 5/5

            December 29, 2018

            Right on the money!

            I had the check engine light on and it turned out to be the 1-02 O2 sensor. I bought the NTK version of the sensor because of its good reviews and its price, which was substantially cheaper than the competition. Installed it and everything is back to A-OK! Now we will see how long it lasts!


            Year: 2004 Submodel: GT

            Helpful (3)

          • 5/5

            December 25, 2018

            Great price

            Good product for a good price, fits perfectly no issues at all..


            Year: 2003 Submodel: Cobra

            Helpful (1)

          • 5/5

            November 22, 2018

            Great o2 sensors

            Bought for the Down streams for my GT Item was just like described replaced in pairs and she’s running like a champ passed smog


            Year: 2000 Submodel: GT

            Helpful (3)

          • 5/5

            November 06, 2018


            Plugged right in and took care of my check engine light.


            Year: 1998 Submodel: V6

            Helpful (3)

          • 5/5

            November 03, 2018

            Works great

            This product eliminated my check engine light. I am so happy now.


            Year: 1998 Submodel: GT

            Helpful (3)

          • 5/5

            October 21, 2018

            Problem solved

            This sensor solved my problem of my 95 Cobra. The check engine light used to come on during high speed. After installing theses problems solved, also I noticed a better gas mpg.


            Year: 1995 Submodel: Cobra

            Helpful (5)

          • 5/5

            September 29, 2018

            Ntk o2 sensors

            Took an extra 2 days to get here but worth the wait notice a differents right away


            Year: 2002 Submodel: GT

            Helpful (3)

          • 4/5

            August 31, 2018

            NTK Performance Oxygen Sensor(94-04v8;95-09 V6)

            I purchased the NTK oxygen sensors through American Muscle and they were an easy fix to my high RPM missing problem as well as my Idle missing problem. I just sprayed the old sensors with penetrating oil and waited 5 minutes. The old sensors were an easy out and the new sensors came pre-lubricated and screwed the new NTK sensors back in and the easy connections solved all my problems. Now my 02 Mustang GT is back to quick launches and steady idles!


            Year: 2002 Submodel: GT

            Helpful (3)

          • 1/5

            August 16, 2018


            Bought two of them, installed at the same time and one went bad after less then 2 months. No warranty, so now I will be buying new one for just a little more from O'Reilly's because they actually have a warranty...


            Year: 1994 Submodel: GT

            Helpful (5)

          • 5/5

            July 30, 2018

            Easy Install and Improved MPG

            I had a bad sensor in left rear, bank 2. Car was throwing CEL too. Ordered all 4 replacements for front and rear those had about 91k miles. These were recommended as OEM. Install only took about 10 minutes although, I did have to use a little bit of blaster on the right rear sensor to get it off. After install I drove the car immediately and it seemed to have much better throttle response and MPG too.


            Year: 2006 Submodel: V6

            Helpful (7)

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