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DENSO
DENSO Oxygen Sensor

DENSO Oxygen Sensor

1· 1 rating

Best price now

$33.59at eBayObserved at 3:51 PM

53% under what the other stores charge

Compared across 5 stores. Prices are checked against each store and labelled with when.

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Our take on the DENSO Oxygen Sensor

The DENSO 234-4800 is a 4-wire, heated, direct-fit oxygen sensor with a 14.76-inch lead, built to OE standards with a laser-welded stainless housing and DENSO's aluminum oxide trap layer to protect the ceramic element from silicone and lead contamination. It is a replacement part for vehicles that use this specific fitment, not a universal sensor. At $33.59 at eBay as of November 3, 2026, it sits at the low end of its recent range, with 5 stores listing it new.

Best forOwners replacing a failed upstream or downstream O2 sensor on a compatible vehicBuyers who want an OE-style direct-fit part instead of a splice-in universal senDIYers doing a bolt-on repair with a factory-style connector
Pros
  • Direct-fit 4-wire design with a factory-style male connector
  • Heated element reaches operating temperature quickly for fast closed-loop fueling
  • Laser-welded stainless housing resists corrosion
  • Aluminum oxide trap layer shields the ceramic element from silicone and lead poisoning
  • 14.76-inch wire length gives installation slack
Cons
  • Fitment is vehicle-specific; the 234-4800 only works on applications that call for it
  • Only one rating so far, and it is 1 out of 5
  • No warranty or return terms are stated in the listing
  • Not a performance upgrade; gains come only from restoring a failed sensor

DENSO Oxygen Sensor prices at every store

  • eBayNew

    In stockSold by donette12

    $33.59Free shippingObserved at 3:51 PM
    Visit store
  • Team VehicleNew

    In stockReturn policy

    $69.55Observed at 3:51 PM
    Visit store
  • WalmartNew

    In stock

    $72.82Free shippingObserved at 3:50 PM
    Visit store
  • Auto Parts and StuffNew

    In stockReturn policy

    $74.56Observed at 3:51 PM
    Visit store
  • Partsgeek.comNew

    In stock

    $72.09+ $10.95 shippingObserved at 3:50 PM
    Visit store

Also available at

  • eBayCheck price at eBay
  • WalmartCheck price at Walmart
  • PartCatalogCheck price at PartCatalog
  • DENSOproductsCheck price at DENSOproducts
  • PartCatalog.comCheck price at PartCatalog.com
  • UpStart Auto Parts & MoreCheck price at UpStart Auto Parts & More

DENSO Oxygen Sensor price history

Lowest price we've seen: $33.59 on Nov 3 at eBay. Tracked across 5 stores since Nov 3.

What reviewers say

Reception is thin: a single 1-out-of-5 rating on this listing, while buyer comments on the eBay page are mostly about delivery and the part working as advertised.

Pros
  • Engine light went off after installation
  • Arrived in the manufacturer's box, exactly as advertised
  • Fast shipping and good value
Cons
  • Shipping took longer than expected
  • The lone rating on this listing is 1 out of 5

From eBay

  • Denso 234-4800 oxygen sensor, 1-piece
  • Direct fit, easy installation
  • 4-wire oxygen O2 sensor
  • Male connector type
  • Bolt-on mounting style
  • Performance part
Materials
Metal, Plastic
Guarantee
3 Years manufacturer warranty; eBay Money Back Guarantee
Returns
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Shipping
Free eBay SpeedPAK Standard. Located in: shenzhen, China. Includes import fees.
In the box
1-Piece O2 Oxygen Sensor

About the DENSO Oxygen Sensor

Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 14.76Laser welded stainless housing resist corrosion and PTFE filter blocks contaminants under harsh engine conditions. Dual-layer protection shields the ceramic element, ensuring proper conditions for fast and reliable response times.DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.

What buyers say

Buyers like
  • Item arrived safe in the manufacturer's box
  • Engine light off after installation
  • Exactly as advertised
  • Fast shipping
  • Good value
Buyers complain about
  • Shipping took a little longer than expected

Specifications

color
MulticolorSource
size
1.880Source

Questions and answers

Is the DENSO 234-4800 worth it?
At $33.59 at eBay as of November 3, 2026, it is a low-cost way to replace a failed sensor with an OE-style direct-fit part. Confirm the part number matches your vehicle's fitment before buying.
Will this fit my car?
Only if your vehicle calls for part number 234-4800. It is a vehicle-specific direct-fit sensor, not a universal one, so check the fitment against your model and engine.
What is in the box?
One O2 sensor with the factory-style male connector and a 14.76-inch lead. No gasket or tools are listed.
Do I need to reset anything after installing it?
Usually no. Buyers report the check engine light going off after installation, though clearing stored codes first helps confirm the fix.
How does it compare with a universal sensor?
It plugs in with the factory connector and needs no wire splicing, which reduces install errors. Universal sensors cost less but require matching and joining your old connector.
When is it cheapest?
The current $33.59 at eBay is already at the low end of its recent range across 5 stores. Watch for price changes around sales periods rather than expecting a large drop.
Where is the DENSO Oxygen Sensor cheapest?
At eBay, for $33.59, 53% under what the other stores charge, as of our latest check.
What do buyers say about the DENSO Oxygen Sensor?
Rated 1 out of 5 from 1 ratings. Buyers like: Item arrived safe in the manufacturer's box; Engine light off after installation; Exactly as advertised. Common complaints: Shipping took a little longer than expected.
Where can I buy the DENSO Oxygen Sensor?
9 stores we checked sell it, including eBay, Team Vehicle, Auto Parts and Stuff, Walmart, Partsgeek.com.

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