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Deal.ai › DENSO
Denso
DENSO Oxygen Sensor Down Stream 234-4233

DENSO Oxygen Sensor Down Stream 234-4233

4.8(26 ratings)

Best price now

$14.99at AmazonChecked 1 h ago

75% under what the other stores charge

Compared across 16 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $14.99 at Amazon (checked Nov 12, 2026).
  • Checked at 16 stores.

Our take on the DENSO Oxygen Sensor Down Stream 234-4233

The Denso 234-4233 is a downstream (post-catalyst) oxygen sensor for 2003–2008 Toyota Corolla, Toyota Matrix and Pontiac Vibe. It is an OE-style sensor, built to the same fit and connector as the factory part, so it installs without splicing or adapter harnesses. Denso supplies oxygen sensors to Toyota as original equipment, which is why this is the usual pick over generic sensors for these cars. Owners rate it highly; the main caveat is that a downstream sensor only fixes the problem if the fault is actually in the sensor, not the catalyst or wiring.

Best for2003–2008 Corolla, Matrix and Vibe owners with a P0420 or downstream sensor codeDrivers who want an OE-style plug-and-play replacementDo-it-yourselfers replacing the post-catalyst sensor
Pros
  • OE-style fit and connector for the listed Toyotas and the Vibe
  • Downstream position, so it reads after the catalytic converter
  • Denso is a Toyota original-equipment supplier
  • No splicing or universal wiring needed
  • Strong owner ratings for fit and fixing check-engine codes
Cons
  • Fits only 2003–2008 Corolla, Matrix and Vibe
  • Downstream only; not a substitute for the upstream sensor
  • Won't fix a code caused by a failing catalytic converter or wiring
  • Older cars often have a seized sensor that needs extra effort to remove

DENSO Oxygen Sensor Down Stream 234-4233 prices at every store

  • WalmartNew

    In stock

    $50.24Free shippingChecked 1 h ago
    Visit Walmart
  • ZAMOZUAN.comNew

    In stockReturn policy

    $78.23Checked 1 h ago
    Visit ZAMOZUAN.com
  • O'Reilly Auto PartsNew

    In stock

    $89.99Free shippingChecked 1 h ago
    Visit O'Reilly Auto Parts
  • AutoZoneNew

    In stock

    $89.99+ $4.99 shippingChecked 1 h ago
    Visit AutoZone
  • NAPA Auto PartsNew

    In stock

    $97.99Free shippingChecked 1 h ago
    Visit NAPA Auto Parts
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $14.99Checked 1 h ago
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  • eBayNew

    Availability unknownSold by zhizh_67

    $32.68Checked 1 h ago
    Visit eBay
  • SparkPlugs.com FamilyNew

    Availability unknown

    $52.41Checked 1 h ago
    Visit SparkPlugs.com Family
  • DENSOproductsNew

    Availability unknown

    $52.41Checked 1 h ago
    Visit DENSOproducts
  • Partsgeek.comNew

    Availability unknown

    $53.97Checked 1 h ago
    Visit Partsgeek.com
  • Summit RacingNew

    Availability unknown

    $57.99Checked 1 h ago
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  • JEGS High PerformanceNew

    Availability unknown

    $57.99Checked 1 h ago
    Visit JEGS High Performance
  • PartCatalog.comNew

    Availability unknown

    $59.42Checked 1 h ago
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  • CarParts.comNew

    Availability unknown

    $61.99Checked 1 h ago
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  • CARiD.comNew

    Availability unknown

    $67.82Checked 1 h ago
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  • Advance Auto PartsNew

    Availability unknown

    $89.99Checked 1 h ago
    Visit Advance Auto Parts

Store links may earn us a commission.

DENSO Oxygen Sensor Down Stream 234-4233 price history

Lowest price we've seen: $14.99 on Nov 12 at Amazon. Tracked across 15 stores since Nov 12.

What reviewers say

  • 4.8 / 526 ratings

Owners of these Corollas, Matrixes and Vibes rate the sensor highly, mainly for correct fit and clearing downstream oxygen sensor codes. Complaints are few and mostly about the job itself rather than the part.

What people mention
  • FitPraisedOwners say it threads in and connects like the factory sensor.
  • Code fixPraisedSeveral report the downstream oxygen sensor code went away after install.
  • BuildPraisedBuyers describe it as matching the original part in quality.
  • DiagnosisMixedA few found the code returned because the fault was not the sensor.

About the DENSO Oxygen Sensor Down Stream 234-4233

This is a Denso downstream oxygen sensor, part number 234-4233. It is an OE-style sensor, and Denso is the original equipment manufacturer.

It fits 2003-2008 Pontiac Vibe, Toyota Corolla and Toyota Matrix models.

Brand
Denso
Part type
Oxygen sensor, downstream
Part number
234-4233
Interchange numbers
2344233, 8826-1242, 21547, 15290, 250-24486, 350-34606
Fitment
2003-2008 Pontiac Vibe, 2003-2008 Toyota Corolla, 2003-2008 Toyota Matrix
Style
OE style

Questions and answers

Is this the upstream or downstream sensor?
It is the downstream sensor, mounted after the catalytic converter. The upstream sensor ahead of the converter is a different part.
Which cars does it fit?
2003–2008 Toyota Corolla, 2003–2008 Toyota Matrix and 2003–2008 Pontiac Vibe.
Does it need wiring or splicing?
No. It is an OE-style sensor with the factory connector, so it plugs in directly.
Will it fix a P0420 code?
Only if the downstream sensor is the cause. P0420 can also come from a worn catalytic converter, exhaust leaks or wiring, so diagnose before replacing.
Is it a genuine Denso part?
Yes, it is Denso's 234-4233 downstream oxygen sensor, the same part number used for these vehicles.
What is in the box?
The sensor itself with its factory-style connector. No tools or adapters are included.
Where is the DENSO Oxygen Sensor Down Stream 234-4233 cheapest?
At Amazon, for $14.99, 75% under what the other stores charge, as of our latest check.
What do buyers say about the DENSO Oxygen Sensor Down Stream 234-4233?
Rated 4.8 out of 5 from 26 ratings.
Where can I buy the DENSO Oxygen Sensor Down Stream 234-4233?
16 stores we checked sell it, including ZAMOZUAN.com, Amazon, eBay, Walmart, SparkPlugs.com Family.

Stores we've priced the DENSO Oxygen Sensor Down Stream 234-4233 at

  • Walmart deals and prices

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