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⚡ Upgrade your ride with precision sensing — because your engine deserves the best!
The Denso 234-4261 Oxygen Sensor is a vehicle-specific replacement part designed for select Toyota and Lexus models from 2001-2012. Built to strict OE standards, it features an exclusive aluminum oxide trap for enhanced durability and resistance to contaminants, operates reliably at temperatures up to 800°C, and improves engine efficiency and emissions control. Trusted by professionals and backed by strong customer reviews, it ensures a perfect fit and long-lasting performance.


| ASIN | B0016NBBQW |
| Best Sellers Rank | #109,255 in Automotive ( See Top 100 in Automotive ) #287 in Automotive Replacement Oxygen Sensors |
| Brand | Denso |
| Brand Name | Denso |
| Customer Reviews | 4.4 out of 5 stars 867 Reviews |
| Global Trade Identification Number | 00042511112513 |
| Included Components | Oxygen (O2) Sensor |
| Item Dimensions | 5.75 x 2.19 x 1.88 inches |
| Item Type Name | ACCESSORIES |
| Item Weight | 0.25 Pounds |
| Item dimensions L x W x H | 5.75 x 2.19 x 1.88 inches |
| Manufacturer | Denso |
| Material | Stainless Steel, Zirconium |
| Material Type | Stainless Steel, Zirconium |
| Model | 234-4261 |
| Mounting Type | Flange Mount |
| Output Type | Push-Pull |
| Specific Uses For Product | Replacement Oxygen (O2) Sensor |
| Style | Oxygen (O2) Sensor |
| Style Name | Oxygen (O2) Sensor |
| UPC | 042511112513 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 800 Degrees Celsius |
| Warranty Description | LIMITED WARRANTY |
K**R
Excellent value on a real product, not a knock off
The real deal, not a knock off, works perfectly.
T**I
Worked great for 2007 FJ Cruiser Bank 1 sensor 2
07 FJ Cruiser Bank 1 sensor 2 check engine light code p0038 and p0137 fixed with this Denso sensor. Fit perfectly. I had tried one of the $25-ish sensors that plugged right in and seemed high quality, but after clearing the codes, the CEL came right back on. Decided to buy the Denso since the factory Toyota one I took out had a Denso logo, cleared the codes, and they have stayed off. Worth the extra $20 for sure!!
D**1
Easy install
After reading all the reviews and comments, this was the easiest fix on my vehicle ever! The check engine and traction control lights came on and I had already replaced the fuel cap a few years ago so it couldn't be the cap. I took my car to my local auto parts and the check engine code showed a bad O2 sensor. The clerk told me they had in stock and it was going to be $180.00. However after a few minute he told me nope this was a special order, and it was going to take 2 days. They have done this to me in the past so I went home and found the part on Amazon for $96.00 (I think they order online and resell at a 100% mark up). They also told me the wrong part, the part for $180.00 was for an fuel/air sensor, which is totally different from O2 sensor. Physical differences: O2 sensor attach directly to exhaust pipe with built in threads, fuel/air sensor has 2 flanges for 2 bolts. Installation only took me 5 min, and here are the steps I used: 1. Parked my car so that the middle of the vehicle is where your drive way and the street meet. Usually there's a dip there like at my house, this gave me an extra 3-4" to crawl underneath the vehicle. 2. Remove the gray plug using a flat screwdriver. Insert the flat head at the top of the plug and pull, it should come off easy. 3. Spray some WD40 or liquid wrench on the nut part of the sensor, and let sit a few min. 4. Remove sensor using a crescent wrench 5. Install new part and tighten with wrench, replug the plug and you are done! I started the engine and no check engine light or traction control lights! A few reviews said it takes a while for the lights to go off so I might have gotten luck. I hope this helps someone.
J**.
Works well. Cheap replacement
Perfect length. Good quality and cheap enough that if it stops working you can just buy another. Easy to put on if you have an older car use spray to be able to break the rusted bolts if not it is plug and play. Works well quality is good. Denso makes great stuff. Removed the codes I was getting. No issue with sensors. Well made. No more codes.
N**N
This was a perfect fit replacement for my 2007 Toyota FJ Cruiser
This was a perfect fit replacement for my 2007 Toyota FJ Cruiser. Unfortunately the check engine light still came back on after about 40 miles with P0430 code... so I guess that was not the problem.
B**L
Quality and easy install
Removed code
E**K
Cable corto
El largo del cable es muuuy pequeño, no funciona/no es el número de repuesto correcto No hay como contactar a soporte para un reembolso
J**R
Fair price not bad
There were no issues with it
Trustpilot
2 months ago
1 week ago