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⚡ Upgrade your ride’s brain with Denso’s precision O2 sensor — because your engine deserves the best!
The Denso 234-4260 Oxygen Sensor is a high-precision, OE-standard replacement part compatible with select Lexus and Toyota models. Featuring a 4-wire 9.45-inch harness, corrosion-resistant stainless steel construction, and a refined zirconia sensing element, it ensures rapid and accurate oxygen level detection. Its exclusive aluminum oxide trap layer protects against sensor poisoning, improving fuel efficiency and engine performance. Trusted by thousands, this sensor offers a perfect first-time fit and long-lasting durability.

| ASIN | B00199FBQY |
| Best Sellers Rank | #52,728 in Automotive ( See Top 100 in Automotive ) #65 in Automotive Replacement Oxygen Sensors |
| Brand | Denso |
| Brand Name | Denso |
| Customer Reviews | 4.4 out of 5 stars 1,086 Reviews |
| Global Trade Identification Number | 00042511112230 |
| Included Components | Oxygen (O2) Sensor |
| Item Dimensions | 6 x 2 x 2 inches |
| Item Type Name | Oxygen Sensor |
| Item Weight | 3.52 ounces |
| Item dimensions L x W x H | 6 x 2 x 2 inches |
| Manufacturer | Denso |
| Material | Stainless Steel, Zirconium |
| Material Type | Stainless Steel, Zirconium |
| Measurement Accuracy | High |
| Model | 234-4260 |
| Mounting Type | Flange Mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Type | electrical signal |
| Part Number | 234-4260 |
| Specific Uses For Product | Replacement Part |
| Style | Replacement Part |
| Style Name | Replacement Part |
| UPC | 042511112230 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 982 °C |
| Warranty Description | Includes manufacturer provided warranty |
H**Y
The one I got was authentic. works and fit great.
234-4260 is a Direct fit for O2 sensor for 2009 Lexus ES350 sensor Bank 2 Sensor 2 aka Downstream Left. Whoever confused of which sensor it is this is it. I got it confirmed it's Denso authentic the one I have received. It looks more updated than the original denso from toyota denso that came out of the car. As of now it is going great and easy to install. Sensor looks high quality and it was on sale on amazon so the price is amazing.
J**N
Perfect fit, CEL gone and back at full power
I thought this for a coworker's car that had been "repaired" by three separate shops with the promise that the check engine light would go off after a few miles of driving. I overheard her in the office talking about it having almost no power and horrible fuel mileage and offered to check it out with my OBDLink Bluetooth adapter, and found the code displayed referenced this O2 sensor. She said the shops had replaced a different O2 sensor, and that where I was pointing wasn't where they had worked and said they replaced it. I offered to purchase this and replace the sensor that the code referenced for free if she would agree to reimburse me if I was right. Swapped it out in the office parking lot and had her fire it up and take it for a drive, she came back all smiles with no lights illuminated and with her car back to full power, for less than a quarter of that the shops charges her to not fix it, and I got a great dinner on top of what I spent for the sensor back
S**T
Amazing! Cleared codes!
Genuine denso part (makes OEM parts for Toyota) at a great price. Installed on a 2005 Tacoma V6 4x4 and it fit great. Wire was perfect length and the quality is superb. This sensor cleared my P0128 and P0606 codes. I highly recommend. Super easy to install yourself, just purchase an O2 sensor tool and PB blaster. Attached are photos of the 20 year old Denso sensors and the wire connectors (again, for a 2005 Tacoma) so that way you Tacoma drivers can ensure this is the correct part for you. Thanks!
M**A
perfect
great deal. great brand name for 2012 tundra rear 02 sensors
J**E
Installed as of yesterday
So far no problem
S**S
OEM Quality, easy to install.
This was a perfect replacement for a Toyota 4.0L v6 rear downstream o2 sensor. Item clip fit the factory harness securely, and had a protective plastic cap on the sensor to keep it clean during shipping. Replacement was easy to do, but hard to access laying on your back under a car. I did this on car ramps for the front. Stay safe and set the parking brake and use jack stands. This fixed/cleared my check engine light code (P040#)! Only minor thing ..and more of a suggestion is that the vendor provide a small tube of antis-seize lubricant to aid in installation.
F**8
Cord too short & wires exposed
Cord is way too short & wires are exposed. That black “cord” there’s 2 wires in there that are exposed by at least one inch. Unfortunately, I didn’t act quick enough with a mechanic to install it, so I was outside of the 30 day window to return it. Ever since I’ve had it installed, my car doesn’t idol like it did before the installation
J**E
It did the trick- cleared the check engine light.
I recently changed a bad Bank 2 Sensor 2 oxygen sensor on my 07 Camry LE. Got this for practically nothing (after points) here, and was hoping for a quick change with some homemade ramps and a cheapo 7/8" socket wrench bought here. DON'T use a 7/8" wrench- instead use a 22mm wrench as the 7/8" is too big and will strip the sensor like mine. Brought it to a muffler place, got it lifted, torched, and the sensor replaced for $30. Don't put the sensor in immediately after the heat, just wait a few minutes. Although the check engine was still on after the 1st day of driving (thought maybe they put the plug in wrong, or was another issue), after the 2nd day the light went off. After 200 miles of driving, it looks all good and clear for me. Highly recommended- can't beat this price! Note: here's an easy way to find out which sensor you need. The 2GR-FE v6 engine is a transverse layout with cylinders 1-3-5 (Bank 1) near the windshield. Cylinders 2-4-6 are Bank 2, near the front grille. Bank 2 Sensor 2 is underneath the car near the driver's side. Just on the right is Bank 1 Sensor 2 (nearer passenger side). Both sensors 1 (Bank 1 and 2) are near the engine under the hood and can be worked on and accessed there.
A**R
Buen sensor de oxigeno
Se instalo en una tacoma. Su instalacion fue fácil y pude ver un ligero cambio favorable en el consumo de combustible. Cumple las expectativas
A**Y
Works great. Can’t beat DENSO for Toyota
Fit my 2006 Tacoma 4.0l v6 4WD crew cab long bed. Goes on passenger side
M**K
Good quality
Just like original OEM part, great price, fast shipping.
R**N
Excelente producto
Excelente producto, la verdad hizo que mi vehículo aumentará el rendimiento del combustible, y más que nada que si es original, la verdad no hay nada mejor que denso para Toyota, lo use en un Toyota Camry 96 3.0, Banco 2 sensor 1.
J**O
Excelente.
El sensor llegó en su caja y bolsa sellada, no tiene marcas de haber sido usado, se ve que sí es original (marca y matrícula grabada en el cuerpo del sensor, cables y conector robustos).
Trustpilot
2 months ago
2 weeks ago