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Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor with 10.6” 4-Wire Harness, for Auto Trans Equipped Vehicles

4.6 4.6 out of 5 stars 783 ratings

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Available at a lower price from other sellers that may not offer free Prime shipping.

Purchase options and add-ons

Brand Denso
Material Zirconium
Item Weight 0.2 Pounds
Style Modern
Mounting Type Flange Mount

About this item

  • Denso "first time fit" planar air fuel sensor, original equipment direct plug in, no wire cutting
  • Sample Image Provided May Differ From Actual Product
  • Features zirconia solid electrolyte
  • Highly accurate
See more product details

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This Item
Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor with 10.6” 4-Wire Harness, for Auto Trans Equipped Vehicles
Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor with 10.6” 4-Wire Harness, for Auto Trans Equipped Vehicles
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Price-24% $139.81
List:$182.98
$38.99-43% $106.60
List:$185.71
-26% $152.45
List:$204.95
$56.99$22.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to install
4.7
4.1
4.4
4.7
5.0
4.1
Value for money
4.4
3.5
4.3
4.4
5.0
3.9
Mileage
4.4
3.1
4.3
4.4
Sold By
Sixity Auto
Marsflex
Amazon.com
Amazon.com
Germban Automotive
TAMKKEN
specific uses
Time
Oxygen Sensor
Oxygen Sensor
Time
material
Zirconium
Zirconium
Zirconium
mounting type
Flange Mount
Flange Mount
Flange Mount
Flange Mount
Flange Mount
style
Modern
Upstream
Modern
Durable
Modern
Modern
weight
0.2 pounds
0.01 ounces
0.26 pounds
0.15 kilograms

Product Description

DENSO REPLACEMENT OXYGEN SENSOR, FRONT -- Front OE Type, Original Replacement Oxygen Sensor, Direct Fit, 1 Required Per Vehicle, Sold Individually

Location: Front

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor with 10.6” 4-Wire Harness, for Auto Trans Equipped Vehicles


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What's in the box

  • 1
  • Product guides and documents

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    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    783 global ratings

    Customers say

    Customers like the performance, value, ease of installation, fit and quality of the electronic sensor. For example, they mention that it runs a lot better, gets better gas mileage and that it's the least expensive sensor they've found. That said, they appreciate the check engine light.

    AI-generated from the text of customer reviews

    138 customers mention129 positive9 negative

    Customers are satisfied with the quality of the electronic sensor. They mention that it works well, is of superior quality, and is a perfect OEM replacement. Some say that the sensor is fine and easy to install. Overall, customers are happy with their purchase and recommend it to others.

    "...Comes with new gasket. No issues so far." Read more

    "Performing as expected. Truck runs a lot better now. I also saved a lot of money compared to the local auto parts store...." Read more

    "...Anyway, this product is a direct replacement for the original part, and it includes the gasket as well...." Read more

    "...Used PB Blaster to help loosen EXTREMELY rusty nuts; this product works wonderfully (just use latex gloves)...." Read more

    86 customers mention83 positive3 negative

    Customers find the installation of the electronic sensor to be easy and straightforward. They say it's very accessible and simple to remove the old sensor and install the new one.

    "Pretty simple to remove old and install new one. Comes with new gasket. No issues so far." Read more

    "...Its that easy. Make sure the car isn't warm or hot. You could burn yourself down there...." Read more

    "...Overall, it is a very easy job that took me no more than 20 mins...." Read more

    "Maybe it's just my luck. I see how everyone said this part was easy to install, and, in theory, it is. Two nuts and one connector...." Read more

    76 customers mention73 positive3 negative

    Customers appreciate the value of the electronic sensor. They say it has an extremely good price, saved them a few bucks, and was the least expensive sensor they found. Some mention that it was an outstanding buy and cost savings on their 2002 Toyota Tundra.

    "Performing as expected. Truck runs a lot better now. I also saved a lot of money compared to the local auto parts store...." Read more

    "...Great price here at Amazon, I saved $80 buying it here than the local auto parts." Read more

    "Great price and the correct part for my 2002 V6 Tacoma. No more P1135 codes since replacing the original 19 year old sensor." Read more

    "...Extremely good price." Read more

    74 customers mention71 positive3 negative

    Customers are satisfied with the fit of the electronic sensor. They mention it fits perfectly, with no problem, and is easy to install. Some say that it saves them hundreds of dollars.

    "What I like abought this sensor is the exact fit and not too hard to put in or take out...." Read more

    "Item works well and as intended. Direct fit to my 2002 Toyota Tacoma 4 cyl...." Read more

    "Perfect fit on my 2002 V6 Tundra 4x4 with AT. Spray the two 12mm nuts a few days prior to make sure they come off easier...." Read more

    "Almost perfect fit...." Read more

    38 customers mention31 positive7 negative

    Customers are satisfied with the check engine light sensor. They mention that it is easy to install and fix the issue. Some say that the light went off immediately after installation. Overall, most are happy with their purchase and recommend it to others.

    "...after that, smooth sailing and no annoying light. Thanks Amazon and other reviewers! go Tacos!" Read more

    "...10 minutes total, no more check engine light." Read more

    "...The check engine light went out, and my fuel economy went up about 2 miles per gallon. I used this for my 2001 Toyota Tundra with the 3.4 liter V6...." Read more

    "...It took me about 20 min to install, now engine check light is gone and saved a lot. Thank you to all previous reviews which helped a lot...." Read more

    22 customers mention22 positive0 negative

    Customers are satisfied with the performance of the electronic sensor. They mention that it improves the performance and engine power of their truck. Some say that the engine light is now off and they are getting better gas mileage.

    "...Installed it, cleared the code with scan tool. Engine ran much smoother immediately. Performance was also improved immediately as well...." Read more

    "Performing as expected. Truck runs a lot better now. I also saved a lot of money compared to the local auto parts store...." Read more

    "...took me about 20 min to install, now engine check light is gone and saved a lot. Thank you to all previous reviews which helped a lot...." Read more

    "...I change the sensor the check engine light went off and my truck runs like a champion...." Read more

    10 customers mention0 positive10 negative

    Customers are dissatisfied with the length of the electronic sensor. They mention that the cable is too short.

    "...The only reason that it does not fit is because the cables are 5 inches too short...." Read more

    "...(too short)...." Read more

    "...Mine has a 5 speed manual transmission, and the wiring harness is too short to reach for the manual transmissions...." Read more

    "...with the installation went as expected, except the electrical cable is shorter than the one I pulled off, so I had to break a clip to get it..." Read more

    This DOES FIT my 2004 Tacoma 2.4L
    5 Stars
    This DOES FIT my 2004 Tacoma 2.4L
    *This DOES FIT my 2004 Tacoma 2.4L,, not sure why amazon says "does not fit" but like our current idiot president says "wrong!" I also checked the Denso auto parts website and they say 234-9001 is the correct part.Anyways, i got the check engine light, used OBD II scanner, got code p0135, bank1 sensor1 just means location before the cat.*under the truck*,, sprayed a little WD40 on my nuts, waited 15mins, a regular 12mm socket wrench did the job just fine. disconnecting the plug was tricky since i don't have tiny hands like our idiot president, i used a very small quick-grip clamp to pinch the release tab, i also unhooked it from its metal post... metal brushed the threads clean and a little anti-seize before wrenching the nuts back,, lastly, i used the OBD II scanner to clear the code,, DONE!! no more CEL.** the new replacement was a slightly shorter than the original which is why i unhooked it from its metal post, but its no biggie, it doesn't move.**the local auto part stores wants $174 for this exact same part.
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    Top reviews from the United States

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    Top reviews from other countries

    Amazon Customer
    5.0 out of 5 stars Heated o2 sensor
    Reviewed in Canada on March 21, 2024
    E. S.
    5.0 out of 5 stars It did what is was supposed too and fixed the problem
    Reviewed in Canada on April 23, 2023
    amp3d
    5.0 out of 5 stars Toyota OEM. The good stuff
    Reviewed in Canada on November 6, 2017
    Kilometers
    4.0 out of 5 stars ‘03 Tacoma 3.4L V6
    Reviewed in Canada on July 26, 2023
    Amazon Customer
    5.0 out of 5 stars Proper fit and the right unit as it was identified ...
    Reviewed in Canada on July 30, 2018