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Denso 234-4261 Oxygen Sensor - Downstream, Downstream Front or Downstream Left
| Brand | Denso 234-4261 |
|---|---|
| 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 | Toyota and Lexus · 45 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support quicker operation and efficient engine performance.
Threaded mounting with a specific-fit design for straightforward installation.
Cross-references ACDelco 213-1483, BorgWarner OS1541 and BorgWarner OS1558 for the same application. See all 28.
Denso OE Style Oxygen Sensor 234-4261
Denso 234-4261 is a specific-fit heated oxygen sensor built to OE-style dimensions for direct replacement in supported Toyota and Lexus applications. It is engineered for accurate exhaust feedback, stable connector fitment, and reliable operation in downstream positions.
Key Features
- Heated oxygen sensor for faster operating temperature and consistent signal response
- Specific-fit design for direct replacement in listed Toyota and Lexus vehicles
- 4-wire configuration with male connector and threaded mounting
- 10.24 in. wiring harness length for proper routing
- 0.708 in. thread diameter for OE-style installation
- Denso aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination
OE Style Construction
Denso’s OE Style line is built and tested to OE standards for exact replacement fit and dependable performance. Part number 234-4261 is designed for downstream oxygen sensor locations and supports accurate air-fuel monitoring in vehicles such as the Toyota Camry, Toyota 4Runner, Toyota Tacoma, Lexus GX470, and Lexus ES330. This part cross-references Bosch 13354 for the same application.
Vehicle Fitment
- Fits 2006-2012 Toyota RAV4, Downstream Left
- Fits 2005-2009 Lexus GX470, Downstream
- Fits 2005-2009 Toyota 4Runner, Downstream
- Fits 2001-2002 Toyota 4Runner, Downstream
- Fits 2004-2008 Toyota Solara, Downstream Front
- Fits 2007 Toyota FJ Cruiser, Downstream Left
- Fits 2004-2006 Lexus ES330, Downstream Front
- Fits 2003-2006 Toyota 4Runner, Downstream Left
- Fits 2002-2006 Toyota Camry, Downstream Front
- Fits 2005-2006 Toyota Tacoma, Downstream Left
- Fits 2005-2006 Toyota Tacoma, Downstream
- Fits 2003-2004 Lexus GX470, Downstream Left
- Fits 2002-2003 Lexus ES300, Downstream Front
Common Issues This Sensor Can Address
- Check engine light related to oxygen sensor performance
- Slow or inaccurate downstream sensor response
- Rough fuel control caused by a worn exhaust sensor
- Failed emissions inspection tied to sensor fault codes
- Connector or fitment problems from an incorrect replacement part
Installation Notes
Confirm the vehicle’s exact position before ordering, since this part is listed for downstream left, downstream, and downstream front applications. Inspect the harness routing, connector style, and thread size before installation. Use proper oxygen sensor service tools and follow the vehicle manufacturer’s torque and anti-seize guidance where applicable.
Quality Assurance
Denso manufactures and tests this oxygen sensor to strict OE standards for consistent fit and function. The OE-style design and contamination-resistant trap layer support long-term durability in demanding exhaust environments.
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2012 | Toyota | RAV4 | — | Downstream Left | OE Style |
| 2011 | Toyota | RAV4 | — | Downstream Left | OE Style |
| 2010 | Toyota | RAV4 | — | Downstream Left | OE Style |
| 2009 | Lexus | GX470 | — | Downstream | OE Style |
| 2009 | Toyota | 4Runner | — | Downstream | OE Style |
| 2009 | Toyota | RAV4 | — | Downstream Left | OE Style |
| 2008 | Lexus | GX470 | — | Downstream | OE Style |
| 2008 | Toyota | 4Runner | — | Downstream | OE Style |
| 2008 | Toyota | RAV4 | — | Downstream Left | OE Style |
| 2008 | Toyota | Solara | — | Downstream Front | OE Style |
| 2007 | Lexus | GX470 | — | Downstream | OE Style |
| 2007 | Toyota | 4Runner | — | Downstream | OE Style |
| 2007 | Toyota | FJ Cruiser | — | Downstream Left | OE Style |
| 2007 | Toyota | RAV4 | — | Downstream Left | OE Style |
| 2007 | Toyota | Solara | — | Downstream Front | OE Style |
| 2006 | Lexus | ES330 | — | Downstream Front | OE Style |
| 2006 | Lexus | GX470 | — | Downstream | OE Style |
| 2006 | Toyota | 4Runner | — | Downstream | OE Style |
| 2006 | Toyota | 4Runner | — | Downstream Left | OE Style |
| 2006 | Toyota | Camry | — | Downstream Front | OE Style |
| 2006 | Toyota | RAV4 | — | Downstream Left | OE Style |
| 2006 | Toyota | Solara | — | Downstream Front | OE Style |
| 2006 | Toyota | Tacoma | — | Downstream Left | OE Style |
| 2006 | Toyota | Tacoma | RWD | Downstream | OE Style |
| 2005 | Lexus | ES330 | — | Downstream Front | OE Style |
| 2005 | Lexus | GX470 | — | Downstream | OE Style |
| 2005 | Toyota | 4Runner | — | Downstream | OE Style |
| 2005 | Toyota | 4Runner | — | Downstream Left | OE Style |
| 2005 | Toyota | Camry | — | Downstream Front | OE Style |
| 2005 | Toyota | Solara | — | Downstream Front | OE Style |
| 2005 | Toyota | Tacoma | — | Downstream Left | OE Style |
| 2005 | Toyota | Tacoma | RWD | Downstream | OE Style |
| 2004 | Lexus | ES330 | — | Downstream Front | OE Style |
| 2004 | Lexus | GX470 | — | Downstream Left | OE Style |
| 2004 | Toyota | 4Runner | — | Downstream Left | OE Style |
| 2004 | Toyota | Camry | — | Downstream Front | OE Style |
| 2004 | Toyota | Solara | — | Downstream Front | OE Style |
| 2003 | Lexus | ES300 | — | Downstream Front | OE Style |
| 2003 | Lexus | GX470 | — | Downstream Left | OE Style |
| 2003 | Toyota | 4Runner | — | Downstream Left | OE Style |
| 2003 | Toyota | Camry | — | Downstream Front | OE Style |
| 2002 | Lexus | ES300 | — | Downstream Front | OE Style |
| 2002 | Toyota | 4Runner | — | Downstream | OE Style |
| 2002 | Toyota | Camry | — | Downstream Front | OE Style |
| 2001 | Toyota | 4Runner | — | Downstream | OE Style |
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