Oxygen Sensor
Hover over the image to zoom in
Oxygen Sensor Oxygen Sensor
Share this:

NTK Oxygen Sensor

Part No. 21546 Warranty Details  

See if this part fits a specific vehicle.

Check Vehicle Fit

NTK Oxygen Sensors meet OE specifications for form, fit and function and have a direct-fit, OEM-style connector for installation.
Back To Top
Connector Type:OE Type
Heated:Yes
Length:16.5 in
Thread Size:18 mm
Wire Quantity:4

REVIEW SNAPSHOT®

by PowerReviews
NTKOxygen Sensor
 
5.0

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 2 customers

Displaying reviews 1-2

Back to top

 
5.0

It was simple and all went well!

By 

from Osceola Mill, PA

About Me Auto Enthusiast, Casual Driver, Mechanic

Verified Buyer

Pros

    Cons

      Best Uses

      • Small Cars

      Comments about NTK Oxygen Sensor:

      I didn't see a less expensive part which the counterperson pointed out to me. With the rental tools available for this job, it was very easy. The engine light reset itself after a day. Fuel milage seems better and engine it more responsive!

      • Was this a gift?:
      • No

      Comment on this reviewHelp Icon

       
      5.0

      Its a working still!!

      By 

      from Ironton, OH

      See all my reviews

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Easy To Use

      Cons

      • None at this time

      Best Uses

      • Trucks

      Comments about NTK Oxygen Sensor:

      I installed this sensor about a week ago, working like it should up to now.

      • Car & Truck:
      • Mechanic
      • Was this a gift?:
      • No

      Comment on this reviewHelp Icon

      Displaying reviews 1-2

      Back to top

      Do you have questions about this product?

       

      Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

      12 Questions | 13 Answers
      Displaying questions 1-10Previous | Next »
      • Q:

        Does this sensor work on either side of the engine? How many sensors are on my vechile, 2007 GMC 2500 HD 6.0 liter, & location.
        Asked on 9/10/2012 by Jerry from Terlton, Ok.

        1 answer

        • CUSTOMER CARE

          A:

          The location and the part number may vary according to the sub model of your GMC 2500 HD. For assisting you further, please provide the sub model of your GMC 2500 HD. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

          Answered on 9/10/2012 by Vincent from AAP
      • Q:

        I have a 2006 saturn 2.2 4clinder, would this cause the engine to run like it was out timing when acelerating
        Asked on 6/11/2012 by Anonymous

        1 answer

        • CUSTOMER CARE

          A:

          Common Symptoms of a bad oxygen sensor: Rough Engine Idle: Vehicle engines that have a bad oxygen sensor often run irregularly or roughly. Oxygen sensors can control or contribute to many different engine functions, including fuel/air mixture, engine timing and engine combustion intervals. A faulty oxygen sensor can disrupt any of these things and cause a rough engine idle. Engine Missing: A bad oxygen sensor can impede the air/fuel mixture of an engine or interfere with the engine combustion, both of which can cause an engine to miss, or run irregularly. An engine miss is normally most pronounced at idle or at lower engine speeds; a faulty oxygen sensor can inhibit the normal fuel delivery/combustion within an engine and cause a miss. Engine Pinging: If a bad oxygen sensor is aligned with the ignition system on a car's engine, it can retard or advance engine ignition timing, which can cause an engine to ping. Pinging occurs when an engine's combustion gases are ignited at the wrong times. Poor Gas Mileage: Depending on the type and/or location of a faulty oxygen sensor, the fuel-delivery and the fuel-combustion systems can be thrown off or made irregular by a faulty oxygen sensor. If too much fuel is injected into an engine's cylinders or a faulty oxygen sensor disturbs the delicate air/fuel mixture of an engine, gas mileage will suffer. Increased Vehicle Emissions: Vehicle oxygen sensors play a critical part in keeping a vehicle's emissions within certain parameters. A vehicle can fail a state-mandated smog test because a bad, or faulty, oxygen sensor will not accurately measure various engine ratios or air/fuel mixture concentrations or adjust certain engine operations accurately enough to keep a vehicle's emissions in check.

          Answered on 6/14/2012 by Steve from AAP
      • Q:

        I have a 2004 suburban 1500 flex fuel 5.3 L VIN Z and i stopped in a store and they first told me had 4 O2 sensors, then they said only 2 on that motor.....is total of 4 sensors or is it just the 2 downstream sensors?
        Asked on 2/3/2012 by Anonymous

        1 answer

        • CUSTOMER CARE

          A:

          Yes, your 2004 Chevrolet Suburban 1500 has got only just two downstream oxygen sensor.

          Answered on 2/3/2012 by Dennis from AAP
      • Q:

        Will this NGK Oxygen Sensor work on my 06 Cheverolet Equinox LS? If so where are the sensor located and the diffuculty in changing?
        Asked on 9/8/2011 by Gabe from Austin, Tx

        1 answer

        • CUSTOMER CARE

          A:

          Yes, this part fits your 2006 Chevrolet Equinox LS. This part is for Front pre-cat.
          Oxygen sensors are located on before and after the catalyst converter on top of the tipe pipes and after the catalyst converter on the side.

          Answered on 9/9/2011 by Aaron from AAP
      • Q:

        Do these have the wire attached, or are they as shown in the picture
        Asked on 11/7/2010 by Anonymous

        1 answer

        • CUSTOMER CARE

          A:

          Yes, this should have the wire and connector attached.

          Answered on 11/8/2010 by Mike the Auto Parts Master from AAP
      • Q:

        I want to know wich o2 sensor this is? I have a 07 chevy impala w/ 3,5 flex fuel engine. The code reads that my number 2 sensor in bank 2 is defective. What is the location and is this the right one?
        Asked on 9/26/2010 by Ish48 from Columbus, OH

        1 answer

        • CUSTOMER CARE

          A:

          This is an upstream sensor. You need the down stream sensor or post-cat sensor.

          Answered on 9/28/2010 by Mike from AAP
      • Q:

        i have a 2008 GMC sierra/1500 slt crewcab with 5.3 flex engine vin: 3gxxxxxxxxxx. how many sensers i have to change and where are they placed? thanks
        Asked on 8/30/2010 by Tone

        1 answer

        • CUSTOMER CARE

          A:

          You should have a total of 4 oxygen sensors. You will have two on each side of the engine. One on each side before the catalytic converter and one on each side after the catalytic converters.

          Answered on 8/30/2010 by Mike from AAP
      • Q:

        i have GMC sierra 1500 crewcab slt with 5.3 vin: 3gxxxxxxxxxxxxxxxx how many sensers i have to change and where are they placed... thanks
        Asked on 8/30/2010 by Tone

        1 answer

        • CUSTOMER CARE

          A:

          You should have a total of 4 oxygen sensors. You will have two on each side of the engine. One on each side before the catalytic converter and one on each side after the catalytic converters.

          Answered on 8/30/2010 by Mike from AAP
      • Q:

        where is this sensor located on my 2007 malibu maxx 3.5v6
        Asked on 7/14/2010 by jim in carrabelle from Carrabelle,fl.32322

        2 answers

        • CUSTOMER CARE

          A:

          The oxygen sensor should be in the exhaust piping. There should be one or two before the catalytic converter and one after the catalytic converter on each side.

          Answered on 7/14/2010 by Mike from AAP
        • CUSTOMER CARE

          A:

          The oxygen sensor should be in the exhaust piping. There should be one or two before the catalytic converter and one after the catalytic converter.

          Answered on 7/14/2010 by Kevin from AAP
      • Q:

        Where is my sensor located in my car? I have a 2005 Chevy Cobalt.
        Asked on 7/9/2010 by Anonymous

        1 answer

        • CUSTOMER CARE

          A:

          You should have one before the catalytic converter and one after the catalytic converter along the exhaust system.

          Answered on 7/9/2010 by Mike from AAP
      Displaying questions 1-10Previous | Next »

      Do you have a question about this product? 

      Check out the specials in our monthly flyer.
       
       
      Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.