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Denso 234-4350 Oxygen Sensor - Downstream
| Brand | Denso 234-4350 |
|---|---|
| Position | Downstream |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 10.75 |
| Product line | OE Style |
| Fits | Honda and Acura · 12 vehicles |
OE-style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps maintain accurate emissions control and engine performance.
Threaded mounting. Installs with a secure, direct-fit connection.
Cross-references Bosch 13961, Bosch 15009 and Delphi ES20356 for the same application. See all 8.
Denso 234-4350 Oxygen Sensor for Honda Civic
Denso 234-4350 is an OE-style heated oxygen sensor built for direct replacement in downstream applications. It is engineered for 2006-2015 Honda Civic and 2013-2014 Acura ILX fitments, with a specific-fit design that supports a first-time fit and accurate sensor replacement.
Key Features
- Heated oxygen sensor for downstream placement
- Specific fit for direct replacement on listed applications
- 4-wire design with male connector
- Threaded mounting type with 0.708 in. thread diameter
- 10.75 in. wiring harness length
- OE-style construction for Honda Civic and Acura ILX applications
OE-Style Design and Sensor Protection
Denso’s OE Style line focuses on exact replacement fitment and factory-style performance. 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 Denso 234-4350 oxygen sensor is a direct-fit choice for drivers servicing a downstream sensor on a Honda Civic or Acura ILX.
This part cross-references Bosch (e.g., 13961, 15009) for the same application.
What This Oxygen Sensor Helps Address
- Check engine light related to downstream oxygen sensor faults
- Incorrect air-fuel ratio feedback from a worn sensor
- Reduced fuel economy caused by inaccurate exhaust readings
- Slow sensor response or heater circuit issues
- Emissions test failures tied to oxygen sensor performance
Installation Notes and Tips
Verify downstream placement before installation and confirm connector style, thread diameter, and harness length match the original sensor. The threaded mounting design is intended for direct replacement on the listed Honda Civic and Acura ILX applications. Use the vehicle’s service procedure for proper removal and tightening.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for replacement accuracy and consistent performance. The 234-4350 is built as a specific-fit sensor for the listed applications, helping ensure the right part and the right fit the first time.
| Year | Make | Model | Fuel Type | Position | Notes |
|---|---|---|---|---|---|
| 2015 | Honda | Civic | CNG | Downstream | OE Style |
| 2014 | Acura | ILX | — | Downstream | OE Style |
| 2014 | Honda | Civic | CNG | Downstream | OE Style |
| 2013 | Acura | ILX | — | Downstream | OE Style |
| 2013 | Honda | Civic | — | Downstream | OE Style |
| 2012 | Honda | Civic | — | Downstream | OE Style |
| 2011 | Honda | Civic | — | Downstream | OE Style |
| 2010 | Honda | Civic | — | Downstream | OE Style |
| 2009 | Honda | Civic | — | Downstream | OE Style |
| 2008 | Honda | Civic | — | Downstream | OE Style |
| 2007 | Honda | Civic | — | Downstream | OE Style |
| 2006 | Honda | Civic | — | Downstream | OE Style |
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