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Denso 234-4302 Oxygen Sensor - Downstream or Downstream Left
| Brand | Denso 234-4302 |
|---|---|
| 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 | 14.57 |
| Product line | OE Style |
| Fits | INFINITI and Nissan · 26 vehicles |
OE style replacement. Precision-built for an exact, first-time fit.
Heated sensor. Helps support faster operation and consistent performance.
Aluminum oxide trap layer. Protects the ceramic element for longer service life.
Cross-references ACDelco 213-2882, ACDelco 213-3117 and BorgWarner OS1700 for the same application. See all 19.
Denso OE Style Oxygen Sensor 234-4302
Denso 234-4302 is an OE Style heated oxygen sensor built for direct replacement in select Infiniti and Nissan applications. It is engineered for exact fitment, stable sensor response, and reliable exhaust monitoring on downstream positions.
Key Features
- Heated oxygen sensor for faster operating readiness
- Specific-fit design for direct replacement installation
- 4-wire configuration with male connector
- Threaded mounting with 0.708 in. thread diameter
- 14.57 in. wiring harness length for application-specific routing
- OE Style construction for factory-like fit and function
OE Style Construction
Denso’s OE Style line is built to match original equipment dimensions and electrical requirements for the listed vehicles. The sensor uses a precision-built design for first-time fitment, and Denso’s aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination, supporting consistent exhaust feedback and long service life. Part number 234-4302 is a direct replacement choice for downstream oxygen sensor service on select Infiniti G35, FX35, FX45, M35, M45, and Nissan 350Z applications.
This part cross-references Bosch (e.g., 13969, 15523) for the same application.
Vehicle Fitment
- Fits 2006-2010 INFINITI M45, Downstream Left
- Fits 2003-2008 INFINITI FX45, Downstream Left
- Fits 2003-2007 INFINITI G35, Downstream Left
- Fits 2003-2006 INFINITI FX35, Downstream Left
- Fits 2006 INFINITI M35, Downstream Left
- Fits 2003-2006 Nissan 350Z, Downstream Left
- Fits 2002 INFINITI G20, Downstream
What It Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel feedback from a worn downstream sensor
- Reduced fuel economy caused by inaccurate exhaust readings
- Slow sensor response after contamination or age-related wear
- Driveability issues tied to faulty emissions monitoring
Installation Notes
Verify the connector style, wire count, thread size, and sensor position before installation. This is a specific-fit, threaded heated oxygen sensor, so routing and mounting should match the original layout on the vehicle. Confirm the downstream left or downstream location listed for your exact application before replacing the part.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for dimensional accuracy and dependable operation. The OE Style design is intended to deliver the right fit and correct function for the listed Infiniti and Nissan applications.
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2010 | INFINITI | M45 | — | Downstream Left | OE Style |
| 2009 | INFINITI | M45 | — | Downstream Left | OE Style |
| 2008 | INFINITI | FX45 | — | Downstream Left | OE Style |
| 2008 | INFINITI | M45 | — | Downstream Left | OE Style |
| 2007 | INFINITI | FX45 | — | Downstream Left | OE Style |
| 2007 | INFINITI | G35 | Coupe | Downstream Left | OE Style |
| 2007 | INFINITI | M45 | — | Downstream Left | OE Style |
| 2006 | INFINITI | FX35 | — | Downstream Left | OE Style |
| 2006 | INFINITI | FX45 | — | Downstream Left | OE Style |
| 2006 | INFINITI | G35 | — | Downstream Left | OE Style |
| 2006 | INFINITI | M35 | — | Downstream Left | OE Style |
| 2006 | INFINITI | M45 | — | Downstream Left | OE Style |
| 2006 | Nissan | 350Z | — | Downstream Left | OE Style |
| 2005 | INFINITI | FX35 | — | Downstream Left | OE Style |
| 2005 | INFINITI | FX45 | — | Downstream Left | OE Style |
| 2005 | INFINITI | G35 | — | Downstream Left | OE Style |
| 2005 | Nissan | 350Z | — | Downstream Left | OE Style |
| 2004 | INFINITI | FX35 | — | Downstream Left | OE Style |
| 2004 | INFINITI | FX45 | — | Downstream Left | OE Style |
| 2004 | INFINITI | G35 | — | Downstream Left | OE Style |
| 2004 | Nissan | 350Z | — | Downstream Left | OE Style |
| 2003 | INFINITI | FX35 | — | Downstream Left | OE Style |
| 2003 | INFINITI | FX45 | — | Downstream Left | OE Style |
| 2003 | INFINITI | G35 | — | Downstream Left | OE Style |
| 2003 | Nissan | 350Z | — | Downstream Left | OE Style |
| 2002 | INFINITI | G20 | — | Downstream | OE Style |
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