Oxygen Sensor - Direct Fit
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Denso Oxygen Sensor - Direct Fit

Part No. 234-4095 Warranty Details  
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Designed to meet the increasing demands of today's engines. Each of our oxygen sensors is constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each Denso sensor.
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Connector Gender:Male
Connector Type:Direct fit
Length:9.25 in
Overall Length:10.44 in
Thread Size:M18 mm
Wire Harness Length:6.56 in
Wire Quantity:4


by PowerReviews
DensoOxygen Sensor - Direct Fit

(based on 2 reviews)

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Reviewed by 2 customers

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Passed Emission Inspection!


from Vienna, VA

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3 or more reviews submitted

Comments about Denso Oxygen Sensor - Direct Fit:

This oxygen sensor replaced a similar part purchased elsewhere that didn't perform correctly and made the vehicle fail emission testing. The oxygen sensor from Advanced Auto Parts worked correctly and allowed the vehicle to pass the tailpipe emission test.

  • Was this a gift?:
  • No

Perfect Fit as advertised; runs great!


from Pa

Verified Buyer


  • Easy To Use


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Best Uses

    Comments about Denso Oxygen Sensor - Direct Fit:

    Easy to install; plugs right into harness. Replaced 140,000 mile original due to cracked/rusted case. Original performance and mileage restored.

    • Car & Truck:
    • Auto Enthusiast, Mechanic

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    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.

    3 Questions | 4 Answers
    Displaying questions 1-3
    • Q:

      is this sensor heated?
      Asked on 9/16/2013 by patt from Okeechobee fla

      1 answer



        Yes, this Denso Oxygen Sensor - Direct Fit - Part No. 234-4095 is heated. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

        Answered on 9/16/2013 by Morgan from AAP
    • Q:

      how is the warranty
      Asked on 6/27/2012 by marek

      1 answer



        This Denso Oxygen Sensor Direct Fit(Part No. 234-4095) come with one year replacement warranty, if defective. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

        Answered on 6/27/2012 by Steve from AAP
    • Q:

      Does this sensor replace the sensor after the catylitic convrter?
      Asked on 6/24/2011 by BJB from Lawrenceville GA

      2 answers



        Yes, it is the after catalyst oxygen sensor.

        Answered on 7/1/2011 by DIY Daniel from AAP
      • A:

        Upstream means before the catalytic converter. Downstream is after the cat.

        Answered on 8/22/2011 by Brad from Nashville, TN
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