1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site
    Quick Links: Adjustable compression/rebound rear shocks? Check Engline Light, Code P0135 Steering wheel feels too "free" at highway speed Scanning codes Show me your TIPS! Frost King and Duramat Hoodliner: Completely ineffective at reducing cabin noise

Denso 234-9001 safe to buy off eBay

Discussion in '1st Gen. Tacomas (1995-2004)' started by scaliusmaximus, Jan 2, 2019.

Page 1 of 2
  1. Jan 2, 2019 at 6:16 PM
    #1
    scaliusmaximus

    #1
    scaliusmaximus [OP] Well-Known Member

    Joined:
    Sep 21, 2018
    Member:
    #266990
    Messages:
    137
    Gender:
    Male
    First Name:
    pascal
    Los Angeles
    Vehicle:
    2001 Tacoma Prerunner XtraCab 3.4l
    none
    Took my truck to the mechanic for a check engine light and he said the upstream sensor needs to be replaced. went on rock auto and found the part number which is the denso 234-9001.
    $111 on rock auto and Amazon!
    Around $60 on eBay but I'm worried about them being Chinese knock offs.

    does anyone think I'll be okay buying off eBay?

    heres the link to the one I've been looking at.
    https://www.ebay.com/itm/Denso-O2-OXYGEN-Air-Fuel-Ratio-Sensor-234-9001-For-Toyota-Tacoma-Tundra-2001-04/232832197447?fits=Year:2001|Model:Tacoma|Submodel:pre+Runner|Engine+-+Liter_Display:3.4L|Make:Toyota|Trim:pre+Runner+Extended+Cab+Pickup+2-Door|Engine:3.4L+3378CC+V6+GAS+DOHC+Naturally+Aspirated&epid=76437714&hash=item3635e16347:g:g0oAAOSwi7VcB60O:rk:6:pf:0
     
    This site contains affiliate links for which the site may be compensated.
    scaliusmaximus, Jan 2, 2019
    #1
  2. Jan 2, 2019 at 6:23 PM
    #2
    1997tacomav6

    #2
    1997tacomav6 V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
    10,386
    Gender:
    Male
    First Name:
    John
    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Look at feedbacks to see if buyer has sold any knock off items,
    Looks ok to me, as long as it has the Toyota box and is marked DESNO on the item I think your ok,
    I bought a set. Few years ago off eBay with no issues and if there is an issue you can always return it with eBay rules
     
    This site contains affiliate links for which the site may be compensated.
    1997tacomav6, Jan 2, 2019
    #2
  3. Jan 2, 2019 at 6:53 PM
    #3
    scaliusmaximus

    #3
    scaliusmaximus [OP] Well-Known Member

    Joined:
    Sep 21, 2018
    Member:
    #266990
    Messages:
    137
    Gender:
    Male
    First Name:
    pascal
    Los Angeles
    Vehicle:
    2001 Tacoma Prerunner XtraCab 3.4l
    none
    just saw in the description that it doesn't come with the Toyota box.
    think I'm gonna pass and just go with part sold by the denso store on Amazon.
     
    This site contains affiliate links for which the site may be compensated.
    scaliusmaximus, Jan 2, 2019
    #3
    skeezix and 1997tacomav6[QUOTED] like this.
  4. Jan 2, 2019 at 6:56 PM
    #4
    1997tacomav6

    #4
    1997tacomav6 V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
    10,386
    Gender:
    Male
    First Name:
    John
    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Yup, didn’t see that, if it’s not in original box definitely pass
     
    1997tacomav6, Jan 2, 2019
    #4
  5. Jan 2, 2019 at 7:01 PM
    #5
    wolfgang123

    #5
    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,913
    Gender:
    Male
    First Name:
    Skyler
    Charlotte, NC
    Vehicle:
    1997 TACOMA - 4x4
    eh.

    Some guys sell none OEM parts in OEM boxes to trick people
    Then sell the OEM part without the box trying to get the same amount of money for "almost" factory sealed OEM.

    The third picture in that ad shows the markings on the piece saying DENSO. if you receive it and it doesn't have legitimate markings on it just return it. I would buy it. I risked it like this on a charcoal canister and it had OEM Denso markings just like the factory one from 2004. for an 02 sensor...OEM is not necessary
     
    wolfgang123, Jan 2, 2019
    #5
  6. Jan 2, 2019 at 7:03 PM
    #6
    eon_blue

    #6
    eon_blue If I would, could you

    Joined:
    Mar 4, 2016
    Member:
    #180213
    Messages:
    69,767
    Gender:
    Male
    First Name:
    Ryan
    Azusa, CA
    Vehicle:
    '04 TRD 3.4l 4x4 5sp manual Xtraca & '96 4runner 4x4 5spd manual
    There are many fake parts on Amazon and especially eBay. If it's not in original packaging I would pass.

    I just went to the local Pep Boys to get my Denso o2 sensor, worth a few extra bucks to me for peace of mind and ease of return if I found something wrong with it.
     
    This site contains affiliate links for which the site may be compensated.
    eon_blue, Jan 2, 2019
    #6
  7. Jan 2, 2019 at 7:05 PM
    #7
    Squeaky Penguin

    #7
    Squeaky Penguin Nothing Ventured, Nothing Gained

    Joined:
    Apr 5, 2012
    Member:
    #76340
    Messages:
    10,069
    Gender:
    Male
    First Name:
    Brett
    Steamboat Springs, Colorado
    Vehicle:
    '01 4WD, SR5, TRD & '13 TRDOR AC
    Lots of dust and custom dents, Check Build
    FWIW, I got a fake Denso air/fuel sensor on flebay that caused me all sorts of frustration until it was replaced. Says Denso right on it but looked quite a bit different from the actual one. I would only buy from a reputable retailer.

    [​IMG]IMAG0557 by Brett Bjorgum, on Flickr
     
    This site contains affiliate links for which the site may be compensated.
    Squeaky Penguin, Jan 2, 2019
    #7
    Currygoat, whatstcp and eon_blue like this.
  8. Jan 2, 2019 at 7:09 PM
    #8
    wolfgang123

    #8
    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,913
    Gender:
    Male
    First Name:
    Skyler
    Charlotte, NC
    Vehicle:
    1997 TACOMA - 4x4

    I am guessing the one on the right was the original/correct part?

    I would bet the two sensors in your picture are meant for a different positions withing the exhaust system, hence different part numbers. Same reason you see negative reviews on the OP's link about the wiring being 6" too short = upstream vs downstream 02 sensor

    I cant tell in the picture but whats that part number for the 02 sensor on the left?
     
    This site contains affiliate links for which the site may be compensated.
    wolfgang123, Jan 2, 2019
    #8
  9. Jan 2, 2019 at 7:12 PM
    #9
    Squeaky Penguin

    #9
    Squeaky Penguin Nothing Ventured, Nothing Gained

    Joined:
    Apr 5, 2012
    Member:
    #76340
    Messages:
    10,069
    Gender:
    Male
    First Name:
    Brett
    Steamboat Springs, Colorado
    Vehicle:
    '01 4WD, SR5, TRD & '13 TRDOR AC
    Lots of dust and custom dents, Check Build
    The one on the right is fake. The left is the actual denso replacement. I didn't take a picture of the OEM unit I took out.

    They both were sold with the same part number, and are the upstream (air/fuel) sensor.

    The plug length has to do with manual vs auto trans.
     
    Squeaky Penguin, Jan 2, 2019
    #9
  10. Jan 2, 2019 at 7:17 PM
    #10
    wolfgang123

    #10
    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,913
    Gender:
    Male
    First Name:
    Skyler
    Charlotte, NC
    Vehicle:
    1997 TACOMA - 4x4
    Really?

    The one that has been clearly used is the fake? and has the heat shield over the wiring (extra expense)? the oval shape on the cut outs is an extra expense as well..that (vaguely guessing here) i assume only a legit manufacturer would go through.
    Seems unlikely but not impossible, the one on the left has an obviously different part number as well.

    I have dealer replaced 02 sensors on my truck that have the "nut" style looking piece above the flange and say "made in japan"
     
    wolfgang123, Jan 2, 2019
    #10
  11. Jan 2, 2019 at 7:20 PM
    #11
    Squeaky Penguin

    #11
    Squeaky Penguin Nothing Ventured, Nothing Gained

    Joined:
    Apr 5, 2012
    Member:
    #76340
    Messages:
    10,069
    Gender:
    Male
    First Name:
    Brett
    Steamboat Springs, Colorado
    Vehicle:
    '01 4WD, SR5, TRD & '13 TRDOR AC
    Lots of dust and custom dents, Check Build
    Yes, really.

    The one on the right looks used as it was. I ran it for several months, which caused poor fuel economy, constant check engine lights, and the occasional misfire. I took the picture when swapping to the actual one that has been in for a while with zero issues.
     
    Last edited: Jan 2, 2019
    Squeaky Penguin, Jan 2, 2019
    #11
  12. Jan 2, 2019 at 7:30 PM
    #12
    scaliusmaximus

    #12
    scaliusmaximus [OP] Well-Known Member

    Joined:
    Sep 21, 2018
    Member:
    #266990
    Messages:
    137
    Gender:
    Male
    First Name:
    pascal
    Los Angeles
    Vehicle:
    2001 Tacoma Prerunner XtraCab 3.4l
    none
    IMG_4880 7.jpg
    went under my truck and got a pic of the sensor
     
    scaliusmaximus, Jan 2, 2019
    #12
  13. Jan 2, 2019 at 7:31 PM
    #13
    scaliusmaximus

    #13
    scaliusmaximus [OP] Well-Known Member

    Joined:
    Sep 21, 2018
    Member:
    #266990
    Messages:
    137
    Gender:
    Male
    First Name:
    pascal
    Los Angeles
    Vehicle:
    2001 Tacoma Prerunner XtraCab 3.4l
    none
    I noticed the pic of the sensor for the eBay listing has different writing on it
     
    This site contains affiliate links for which the site may be compensated.
    scaliusmaximus, Jan 2, 2019
    #13
  14. Jan 2, 2019 at 7:31 PM
    #14
    wolfgang123

    #14
    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,913
    Gender:
    Male
    First Name:
    Skyler
    Charlotte, NC
    Vehicle:
    1997 TACOMA - 4x4
    not trying to be a dick. Genuinely curious and just confused (its late for me)

    the one on the left....I ran for several months, which caused poor fuel economy..etc.."
    "I took the picture when swapping to the actual.."

    so the clean looking sensor on the left was "used" and the obviously dirty sensor on the right was the "actual"/new sensor/correct sensor your referencing?

    your line "used as it was" has me confused (sorry im an idiot) makes me think its the problem sensor (the sensor on the left).
     
    wolfgang123, Jan 2, 2019
    #14
  15. Jan 2, 2019 at 7:32 PM
    #15
    wolfgang123

    #15
    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,913
    Gender:
    Male
    First Name:
    Skyler
    Charlotte, NC
    Vehicle:
    1997 TACOMA - 4x4
    exactly what i have and works fine in my truck
     
    wolfgang123, Jan 2, 2019
    #15
  16. Jan 2, 2019 at 7:35 PM
    #16
    Squeaky Penguin

    #16
    Squeaky Penguin Nothing Ventured, Nothing Gained

    Joined:
    Apr 5, 2012
    Member:
    #76340
    Messages:
    10,069
    Gender:
    Male
    First Name:
    Brett
    Steamboat Springs, Colorado
    Vehicle:
    '01 4WD, SR5, TRD & '13 TRDOR AC
    Lots of dust and custom dents, Check Build
    Oops. :oops: Said left, but meant right. Sorry for the confusion.
     
    Squeaky Penguin, Jan 2, 2019
    #16
  17. Jan 2, 2019 at 7:37 PM
    #17
    wolfgang123

    #17
    wolfgang123 Well-Known Member

    Joined:
    Jul 7, 2009
    Member:
    #19369
    Messages:
    1,913
    Gender:
    Male
    First Name:
    Skyler
    Charlotte, NC
    Vehicle:
    1997 TACOMA - 4x4
    wolfgang123, Jan 2, 2019
    #17
  18. Jan 2, 2019 at 7:39 PM
    #18
    El Taco Diablo

    #18
    El Taco Diablo Professional Pinstriper

    Joined:
    Nov 6, 2017
    Member:
    #235223
    Messages:
    13,979
    Gender:
    Male
    First Name:
    Matt - KN6DZP
    Hughson, CA
    Vehicle:
    Impulse Red DC, 5vz-fe, 4wd swap, LT, dual case, F/R locked
    Just 3 tons of fun!!!
    I've bought all kinds of stuff from eBay and Amazon that is OEM.



    It has always shown up in OEM packaging and the parts have always said Toyota, Denso, Koyo, etc.

    But I always check that the seller has history and good feedback etc.

    I did get burned on a set of wheel cylinders now that I think about it. They arrived and where not actual OEM. But overall I've had good luck.
     
    This site contains affiliate links for which the site may be compensated.
    El Taco Diablo, Jan 2, 2019
    #18
  19. Jan 2, 2019 at 7:42 PM
    #19
    scaliusmaximus

    #19
    scaliusmaximus [OP] Well-Known Member

    Joined:
    Sep 21, 2018
    Member:
    #266990
    Messages:
    137
    Gender:
    Male
    First Name:
    pascal
    Los Angeles
    Vehicle:
    2001 Tacoma Prerunner XtraCab 3.4l
    none
    okay the only thing I've noticed is the ebay listings have an image of a sensor that have this engraving.

    Screen Shot 2019-01-02 at 7.41.19 PM.jpg
     
    This site contains affiliate links for which the site may be compensated.
    scaliusmaximus, Jan 2, 2019
    #19
  20. Jan 2, 2019 at 7:42 PM
    #20
    scaliusmaximus

    #20
    scaliusmaximus [OP] Well-Known Member

    Joined:
    Sep 21, 2018
    Member:
    #266990
    Messages:
    137
    Gender:
    Male
    First Name:
    pascal
    Los Angeles
    Vehicle:
    2001 Tacoma Prerunner XtraCab 3.4l
    none
    scaliusmaximus, Jan 2, 2019
    #20
Page 1 of 2

Products Discussed in

Denso 234-9001 Upstream Air Fuel Ratio Oxygen Sensor with 10.6” 4-Wire Harness, for Auto Trans Equipped Vehicles
$148.69
Denso 234-9003 Air Fuel Ratio Sensor
$169.99
To Top