/live/media/NP/NP_2344149_Fro.jpg)
Denso 234-4149 Oxygen Sensor - Downstream or Downstream Left
| Brand | Denso 234-4149 |
|---|---|
| Position | Downstream Left |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 10.24 |
| Product line | OE Style |
| Fits | Lexus, Toyota, and Scion · 33 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support efficient engine performance and fuel economy.
Threaded mounting. Specific-fit design with a male connector and 4-wire harness.
Cross-references ACDelco 213-3037, ACDelco 213-3073 and BorgWarner OS1530 for the same application. See all 25.
Denso OE Style Oxygen Sensor 234-4149
Denso 234-4149 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for downstream left and downstream applications on select Lexus, Toyota, and Scion vehicles, including Toyota Highlander, Toyota Sienna, Lexus RX350, and Lexus LS460 coverage.
Key Features
- Heated oxygen sensor with a specific-fit design
- 4-wire configuration with male connector
- Threaded mounting type for direct replacement service
- 10.24-inch wiring harness length
- 0.708-inch thread diameter
- OE Style construction for factory-style fit and function
OE Style Design and Performance
Denso’s OE Style line is built to match original equipment requirements for fit, form, and function. The sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management, fuel control, and long service life. This part cross-references Bosch 13720 and NTK 24293 for the same application. The Denso 234-4149 is a direct-fit choice for drivers and technicians servicing downstream oxygen sensor faults on Toyota Highlander, Toyota Sienna, and related Lexus applications.
Vehicle Fitment
- Fits 2009-2013 Lexus LS460, downstream left.
- Fits 2006-2013 Toyota Highlander, downstream left.
- Fits 2005-2010 Scion tC, downstream.
- Fits 2007-2010 Toyota Sienna, downstream left.
- Fits 2007-2009 Lexus RX350, downstream left.
- Fits 2006-2008 Lexus RX400h, downstream left.
- Fits 2003 Toyota Camry, downstream, excluding California.
- Fits 2002-2003 Toyota Solara, downstream.
- Fits 2002 Toyota Camry, downstream.
Common Issues This Sensor Can Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio feedback from a worn downstream sensor
- Reduced fuel economy caused by inaccurate exhaust readings
- Slow sensor response from contamination or age
- Emissions test failure tied to faulty sensor output
Installation Notes and Tips
Confirm the connector style, wire count, thread diameter, and downstream left or downstream location before installation. Use the vehicle’s exact year and engine application to verify fitment, especially on 2003 Toyota Camry models marked excluding California. Inspect the harness routing and connector condition during replacement to help ensure a clean OE-style installation.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for consistent replacement quality. The precision-built design is intended to deliver the right part and the right fit for the listed applications.
| Year | Make | Model | Drive Type | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | Lexus | LS460 | AWD | — | Downstream Left | OE Style |
| 2013 | Toyota | Highlander | — | GAS | Downstream Left | OE Style |
| 2012 | Lexus | LS460 | AWD | — | Downstream Left | OE Style |
| 2012 | Toyota | Highlander | — | GAS | Downstream Left | OE Style |
| 2011 | Lexus | LS460 | AWD | — | Downstream Left | OE Style |
| 2011 | Toyota | Highlander | — | GAS | Downstream Left | OE Style |
| 2010 | Lexus | LS460 | AWD | — | Downstream Left | OE Style |
| 2010 | Scion | tC | — | — | Downstream | OE Style |
| 2010 | Toyota | Highlander | — | — | Downstream Left | OE Style |
| 2010 | Toyota | Sienna | — | — | Downstream Left | OE Style |
| 2009 | Lexus | LS460 | AWD | — | Downstream Left | OE Style |
| 2009 | Lexus | RX350 | — | — | Downstream Left | OE Style |
| 2009 | Scion | tC | — | — | Downstream | OE Style |
| 2009 | Toyota | Highlander | — | — | Downstream Left | OE Style |
| 2009 | Toyota | Sienna | — | — | Downstream Left | OE Style |
| 2008 | Lexus | RX350 | — | — | Downstream Left | OE Style |
| 2008 | Lexus | RX400h | — | — | Downstream Left | OE Style |
| 2008 | Scion | tC | — | — | Downstream | OE Style |
| 2008 | Toyota | Highlander | — | — | Downstream Left | OE Style |
| 2008 | Toyota | Sienna | — | — | Downstream Left | OE Style |
| 2007 | Lexus | RX350 | — | — | Downstream Left | OE Style |
| 2007 | Lexus | RX400h | — | — | Downstream Left | OE Style |
| 2007 | Scion | tC | — | — | Downstream | OE Style |
| 2007 | Toyota | Highlander | — | ELECTRIC/GAS | Downstream Left | OE Style |
| 2007 | Toyota | Sienna | — | — | Downstream Left | OE Style |
| 2006 | Lexus | RX400h | — | — | Downstream Left | OE Style |
| 2006 | Scion | tC | — | — | Downstream | OE Style |
| 2006 | Toyota | Highlander | — | ELECTRIC/GAS | Downstream Left | OE Style |
| 2005 | Scion | tC | — | — | Downstream | OE Style |
| 2003 | Toyota | Camry | — | — | Downstream | Excluding California.; OE Style |
| 2003 | Toyota | Solara | — | — | Downstream | OE Style |
| 2002 | Toyota | Camry | — | — | Downstream | OE Style |
| 2002 | Toyota | Solara | — | — | Downstream | OE Style |
| No rows match your filter. | ||||||