


🔥 Stay ahead of the pack with precision oxygen sensing!
The Denso 234-4516 Heated 4-Wire Oxygen Sensor features a 15.75-inch wire length and a robust quad-layer protective design, delivering OE-level precision and durability. Engineered for direct fit and easy installation, it ensures accurate oxygen detection for optimal engine performance and fuel efficiency, making it a top choice for professional-grade vehicle maintenance.

| ASIN | B0018JVJIE |
| Best Sellers Rank | #239,794 in Automotive ( See Top 100 in Automotive ) #1,033 in Automotive Replacement Oxygen Sensors |
| Brand | Denso |
| Customer Reviews | 4.5 4.5 out of 5 stars (391) |
| Date First Available | January 2, 2007 |
| Exterior | Machined |
| Global Trade Identification Number | 00042511112780 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item model number | 234-4516 |
| Manufacturer | Denso |
| Manufacturer Part Number | 234-4516 |
| Material | Zirconium |
| Measurement Accuracy | High |
| Model | Oxygen Sensor |
| Mounting Type | Threaded |
| Output Type | electrical signal |
| Sensing Distance | 15.75 Inches |
| Specific Uses For Product | Oxygen Sensor |
| Style | Modern |
| UPC | 042511112780 |
R**N
Excellent O2 Sensor for 04 Sienna
This oxygen sensor is excellent. I made sure it was the correct one before ordering and, upon arrival, I was able to install it easily. It came with the anti-seize compound for the threads as well as the rubber boot to keep water out of the vehicle where the wire comes through the floor pan. After installation I cleared my diagnostic codes and then started the car. I monitored the output of this sensor using a real time monitoring scan tool and it worked perfectly. I have since driven 2,000 miles and the Check Engine Light has not turned on. I saved almost $200 compared to what the car dealer wanted to charge me to replace this sensor.
M**.
Quality part with everything you need to install
Several auto parts stores wanted over $100 for this same part. This was exactly the right part, with the rubber gasket and anti-seize grease included. The fit was perfect and the check engine light went away. Be sure to grab some penetrating agent to make taking the old one off a little easier!
C**P
2007 toyota sienna perfect fit
denso is a perfect fit and OEM for Toyota. i replaced my P0037 code error o2 sensor with this. and its identical to the factory o2 unit
D**G
Original equipment manufacture. Works.
OEM for Toyota Sienna and works fine to replace tired O2 Sensors for passing CAT emissions test.
G**N
Perfect fit for 2004 Sienna
Had code, P0420: Catalyst System Efficiency Below Threshold (bank 1). This is the downstream sensor which is easy to access under the car. I had to strain my neck to see the upstream sensor by the exhaust manifold and said a small prayer I didn't need to replace that sensor. Easily replaced the oxygen sensor. For 2004 Sienna, recommend removing the console panel by gas pedal to access the wire connector (pop out the two lock pins). Sensor does come with rubber grommet on wire to plug hole where wire runs into van. Didn't even clear the code, drove around a few days and CEL light turned off all by its little self!!
R**L
Good
Quality of part was good
B**P
Best OEM replacement available
Great price for a needed replacement on our 2005 Toyota Sienna. Equivalent of factory Toyota part (I believe Denso makes the Toyota labeled parts). You could take a chance on a slightly less expensive no-name brand made in China... but given the cost of labor these days, it's a better value to simply purchase Denso and know it will be a lasting replacement.
T**Y
Fixed P0037
Fixed the P0037 engine code
E**.
Ya había cambiado el sensor de oxigeno por uno de los económicos de aquí(chinos), pero no funcionaba como el original. Hice la compra y ya pasando el tiempo de ajuste de valores se nota la diferencia ya no huele a humo en el escape. Y la potencia volvió. Ampliamente recomendable. Mejor hacer el esfuerzo por comprar el de calidad. Fue el indicado para mi sienna 2004.
C**S
For Sienna 2
N**P
Fits 2008 Toyota Sienna. Worked well as described in specifications. No more CEL.
S**A
Calidad precio, es la marca hecha para toyota no batalles y compralo superbarato, funciona perfectamente
L**O
perfect fit, easy to install. Just to remind everyone that this is for Bank 1, Sensor 2
Trustpilot
Hace 2 semanas
Hace 2 meses