Oxygen Sensor - Direct Fit
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Denso Oxygen Sensor - Direct Fit

Part No. 234-4621 Warranty Details  

See if this part fits a specific vehicle.

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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:Female
Connector Type:Direct fit
Heated:Yes
Length:19.8 in
Overall Length:20.99 in
Thread Size:M18 mm
Wire Harness Length:17.11 in
Wire Quantity:4

REVIEW SNAPSHOT®

by PowerReviews
DensoOxygen Sensor - Direct Fit
 
3.8

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (7)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

73%

of respondents would recommend this to a friend.

Pros

  • Easy to use (8)

Cons

  • Incompatible (3)

Best Uses

  • Small cars (4)
    • Reviewer Profile:
    • Casual driver (7), Auto enthusiast (5)
    • Was this a gift?:
    • No (12)

Most Liked Positive Review

 

Worked great, cleared code P1167

Product worked great and cleared OBDC code P1167 air/fuel ratio sensor 1 heater system malfunction on my 1999 Honda Accord

Product worked great and cleared OBDC code P1167 air/fuel ratio sensor 1 heater system malfunction on my 1999 Honda Accord

VS

Most Liked Negative Review

 

Will not fit 98 Honda Accord

Website said that this product was an "Exact Fit" for my 1998 Honda Accord EX 3.0L V6; however, the wire was not long enough. Just wanted to let anyone else looking know.

Website said that this product was an "Exact Fit" for my 1998 Honda Accord EX 3.0L V6; however, the wire was not long enough. Just wanted to let anyone else looking know.

Reviewed by 12 customers

Displaying reviews 1-10

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1.0

NOT an exact fit!

By 

from Columbus, OH

Pros

    Cons

    • Difficult To Use
    • Incompatible
    • Wire Is Too Short

    Best Uses

      Comments about Denso Oxygen Sensor - Direct Fit:

      Purchased this downstream Denso O2 sensor which was described as an "exact fit" for my 1998 Honda Accord EX 6 cyl. Wire is 8 inches too short. Should return it, but I didn't want to stop and hassle with it, so I spliced it into the original to increase length and installed it. Removed clock fuse, waited 20 seconds, plugged fuse back in which reset the check engine light. Drove the car for two miles, check engine light remained off. Hope this works long term.

      • Was this a gift?:
      • No

      Comment on this reviewHelp Icon

       
      1.0

      Heater circuit malfunction

      By 

      from Va

      About Me Auto Enthusiast, Casual Driver

      Pros

        Cons

        • Incompatible

        Best Uses

          Comments about Denso Oxygen Sensor - Direct Fit:

          Thought I'd replace downstream as well, installation was easy but check engine stays on now even after resetting it, code reads heater circuit malfunction. Stay away from this if you have a civic model yrs. 2001-2005. Get the Bosch brand.

          • Was this a gift?:
          • No

          Comment on this reviewHelp Icon

           
          5.0

          back sensor for 2002 Honda Accord

          By 

          from Prospect,Ky

          About Me Casual Driver

          See all my reviews

          Verified Buyer

          Pros

          • Easy To Use

          Cons

            Best Uses

            • Large Cars
            • Small Cars

            Comments about Denso Oxygen Sensor - Direct Fit:

            easy to put on ...fit perfect

            • Was this a gift?:
            • No

            Comment on this reviewHelp Icon

            (2 of 2 customers found this review helpful)

             
            5.0

            O2 sensors

            By 

            from atlanta, ga.

            About Me Auto Enthusiast

            Verified Buyer

            Pros

            • Easy To Use

            Cons

              Best Uses

              • Small Cars

              Comments about Denso Oxygen Sensor - Direct Fit:

              easy to install

              • Was this a gift?:
              • No

              Comment on this reviewHelp Icon

               
              4.0

              Perfect match for my Honda

              By 

              from Ellicott City, Maryland

              About Me Casual Driver

              Verified Buyer

              Pros

              • Easy To Use
              • Lightweight

              Cons

                Best Uses

                • Small Cars

                Comments about Denso Oxygen Sensor - Direct Fit:

                I had to replace the exhaust, from the flex pipe all the way back, on my 02 Honda Accord w/ a 4 cyl engine. I was on the fence of whether or not to replace the O2 sensor downstream which goes in the CAT. Although with replacing all those parts I decide it was best to replace the O2 sensor as well. It fit perfect and was very easy to install there were no adaptations needed to make it work.

                • Was this a gift?:
                • No

                Comment on this reviewHelp Icon

                (5 of 5 customers found this review helpful)

                 
                1.0

                Will not fit 98 Honda Accord

                By 

                from MS

                About Me Casual Driver

                Pros

                • Denso Makes Good Product

                Cons

                • Incompatible

                Best Uses

                  Comments about Denso Oxygen Sensor - Direct Fit:

                  Website said that this product was an "Exact Fit" for my 1998 Honda Accord EX 3.0L V6; however, the wire was not long enough. Just wanted to let anyone else looking know.

                  • Was this a gift?:
                  • No

                  Comment on this reviewHelp Icon

                   
                  5.0

                  good fit

                  By 

                  from englewood nj

                  About Me Auto Enthusiast, Casual Driver

                  See all my reviews

                  Verified Buyer
                  3 or more reviews submitted

                  Pros

                  • Durable
                  • Easy To Use
                  • High-Performance

                  Cons

                    Best Uses

                    • Small Cars

                    Comments about Denso Oxygen Sensor - Direct Fit:

                    great exact fit

                    • Was this a gift?:
                    • No

                    Comment on this reviewHelp Icon

                     
                    4.0

                    Worked great

                    By 

                    from Near Myrt;e Beach, SC

                    About Me Casual Driver

                    Verified Buyer

                    Pros

                    • Easy To Use

                    Cons

                      Best Uses

                        Comments about Denso Oxygen Sensor - Direct Fit:

                        Worked fine - exact replacement for my 91 Honda Accord EX. Wire was longer than the original but it came with zip-ties so you could wrap up the extra wire if needed.

                        The car would run rough/slow until the "check engine" light came on and then it would smooth right out.

                        AFter installing this part, the car runs like it should and my engine light doesn't come on anymore ... and no I didn't have to "clear the computer memory" to stop the light from coming on, it just didn't come on again after replacing the part. Nor did I unhook the negative battery cable while doing the work, I forgot.

                        It's only been installed a few days so I can't speak to its durability. I hope this helps someone else.

                        • Was this a gift?:
                        • No

                        Comment on this reviewHelp Icon

                        (9 of 9 customers found this review helpful)

                         
                        5.0

                        Worked great, cleared code P1167

                        By 

                        from Washington, DC

                        About Me Casual Driver

                        Verified Buyer
                        Helpful Reviewer

                        Pros

                        • Easy To Use

                        Cons

                          Best Uses

                            Comments about Denso Oxygen Sensor - Direct Fit:

                            Product worked great and cleared OBDC code P1167 air/fuel ratio sensor 1 heater system malfunction on my 1999 Honda Accord

                            • Was this a gift?:
                            • No

                            Comment on this reviewHelp Icon

                             
                            5.0

                            Quick Fix

                            By 

                            from MD

                            Verified Buyer

                            Pros

                            • Easy To Use

                            Cons

                              Best Uses

                                Comments about Denso Oxygen Sensor - Direct Fit:

                                A 10 min fix! Plug and go!

                                • Was this a gift?:
                                • No

                                Comment on this reviewHelp Icon

                                Displaying reviews 1-10

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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.

                                15 Questions | 17 Answers
                                Displaying questions 1-10Previous | Next »
                                • Q:

                                  I have a 99 Honda accord coupe I believe lx 4 clinder and i was told to get a downstream o2 sensor is this the correct part? it's suppose to go inside of my cat.
                                  Asked on 9/23/2016 by Tgrant from Springfield, MA

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    Yes, Tgrant! This Denso - Part No. 234-4621 is an exact fit Downstream Oxygen Sensor for your 1999 Honda Accord LX.

                                    Answered on 9/26/2016 by Solomon from AAP
                                • Q:

                                  I have Honda Accord 2001 engine # F23A5-4030430 is this sensor direct fit for upstream or downstream? if upstream what is the part # for downstream.
                                  Asked on 3/27/2016 by Omar from Union City, CA

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    Hi Omar, glad to help you! This Denso Oxygen Sensor - Direct Fit (Part No. 234-4621) is an exact downstream oxygen sensor for your 2001 Honda Accord. We do have an exact upstream oxygen sensor available online for your vehicle and the part number is 234-4620. Please enter your vehicle on our website and search for this part to check the fitment.

                                    Answered on 3/28/2016 by Steve from AAP
                                • Q:

                                  part # 234-4621 would that be the right oxygen sensor for 2001 Honda civic ex 1.7l vtec
                                  Asked on 12/6/2015 by albert from surry, va.

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    Hi Albert, I'm glad to assist you. This Denso Oxygen Sensor - Direct Fit (Part No. 234-4621) is the exact downstream oxygen sensor for your 2001 Honda Civic EX 1.7L.

                                    Answered on 12/7/2015 by Solomon from AAP
                                • Q:

                                  it fits for a honda accord 1995 2.2litres dohc?
                                  Asked on 12/19/2014 by venaman from new jersey

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    Hi Venaman, glad to assist you! This part does not fit your 1995 Honda Accord 2.2L. We do have an exact oxygen sensor available online for your vehicle and the part number is 234-4209. Please enter your vehicle on our website and search for this part to check the fitment.

                                    Answered on 12/20/2014 by Steve from AAP
                                • Q:

                                  is this a bank 1 or a bank 2 sensor?
                                  Asked on 10/25/2012 by MariMonroe from Mableton, GA

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    For further assistance regarding the Denso Oxygen Sensor Direct Fit (Part No. 234-4621), please provide the year, make, model and engine size of your vehicle. For more information, 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 10/25/2012 by Steve from AAP
                                • Q:

                                  i need this part for my honda accord 98 is this different from an upstream?
                                  Asked on 10/13/2012 by mikeg from tr nj

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    This Denso Oxygen Sensor Direct Fit (Part No. 234-4621) is an exact fit for your 1998 Honda Accord and it is a downstream sensor. For more information, 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 10/14/2012 by Steve from AAP
                                • Q:

                                  On the Denso site, it seems to indicate my 2000 Accord with a 2.3L F23A4 engine can take Denso 234-122, 234-4621, or 234-42109. I'm interested in a direct fit only, which i think both 234-122 and 234-4621 are. What's the difference between these two?
                                  Asked on 8/25/2012 by Dennis from Indiana, PA

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    This Denso Oxygen Sensor Direct Fit Part number 234-4621 should fit 2000 Honda Accord 2.3L F23A4 ULEV engine and part number 234-4122 should fit 2000 Honda Accord 2.3L F23A4 SULEV engine. 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 8/26/2012 by Steve from AAP
                                • Q:

                                  Will this sensor fit a 1999 Honda civic EX? which up stream or down stream?
                                  Asked on 8/11/2012 by Nicolo from NY

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    Sorry, this Denso Oxygen Sensor Direct Fit (Part# 234-4621) does not fit 1999 Honda Civic EX. 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 8/11/2012 by Rick from AAP
                                • Q:

                                  I need the sensor that is just before the cat. will this one work
                                  Asked on 3/30/2012 by Anonymous

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    In order to locate the exact part, please provide the year, make, model and engine size of the vehicle.

                                    Answered on 3/31/2012 by Vincent from AAP
                                • Q:

                                  Does this fit a 1998 4 door honda accord ex, 4 cylinder?
                                  Asked on 2/6/2012 by partsman from IL

                                  1 answer

                                  • CUSTOMER CARE

                                    A:

                                    Yes, this part Denso Oxygen Sensor Direct Fit, Part No. 234-4621 manufactured by Denso fits your 1998 4 door Honda Accord EX, 4 cylinder.

                                    Answered on 2/7/2012 by Aaron from AAP
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