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Denso 234-4305 Oxygen Sensor - Downstream
| Brand | Denso 234-4305 |
|---|---|
| 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 | 31.10 |
| Product line | OE Style |
| Fits | Toyota and Pontiac · 13 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support quicker operation and efficient engine performance.
Aluminum oxide trap layer. Protects the ceramic element from contamination for longer life.
Cross-references ACDelco 213-4292, Bosch 18011 and Bosch 18013 for the same application. See all 10.
Denso 234-4305 Oxygen Sensor for Toyota and Pontiac
Denso 234-4305 is a specific-fit heated oxygen sensor built to OE-style standards for direct replacement in downstream applications. It is engineered for the 2009-2014 Toyota Matrix, 2009-2013 Toyota Corolla, and 2009-2010 Pontiac Vibe, with the correct connector, thread size, and harness length for a first-time fit.
Key Features
- Heated oxygen sensor for downstream exhaust monitoring
- Specific fit design for direct replacement on listed vehicles
- 4-wire configuration with male connector
- 31.10 in. wiring harness length
- Threaded mounting with 0.708 in. thread diameter
- OE Style Denso construction for accurate replacement fitment
OE Style Construction
Denso’s OE Style line is built to match original equipment dimensions and performance expectations. The sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management, fuel efficiency, and long service life. This part number, 234-4305, is a direct replacement choice for drivers servicing a Toyota Corolla, Toyota Matrix, or Pontiac Vibe with downstream sensor needs.
This part cross-references Bosch (e.g., 18011, 18013) for the same application.
What This Sensor Helps Address
- Check engine light related to downstream oxygen sensor faults
- Incorrect air-fuel feedback from a worn sensor
- Reduced fuel economy caused by aging exhaust sensor response
- Emissions test failures tied to oxygen sensor performance
- Rough engine operation from inaccurate exhaust readings
Installation Notes
Verify downstream placement before installation and confirm the connector, wire count, and threaded mounting match the original sensor. The 31.10-inch harness length and specific-fit design are intended to simplify replacement on the listed Toyota Corolla, Toyota Matrix, and Pontiac Vibe applications. Always inspect the exhaust bung threads and wiring routing before final tightening.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for consistent fit and function. The 234-4305 is built as an exact replacement part for the listed applications, with attention to sensor durability and accurate exhaust monitoring.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2014 | Toyota | Matrix | Downstream | OE Style |
| 2013 | Toyota | Corolla | Downstream | OE Style |
| 2013 | Toyota | Matrix | Downstream | OE Style |
| 2012 | Toyota | Corolla | Downstream | OE Style |
| 2012 | Toyota | Matrix | Downstream | OE Style |
| 2011 | Toyota | Corolla | Downstream | OE Style |
| 2011 | Toyota | Matrix | Downstream | OE Style |
| 2010 | Pontiac | Vibe | Downstream | OE Style |
| 2010 | Toyota | Corolla | Downstream | OE Style |
| 2010 | Toyota | Matrix | Downstream | OE Style |
| 2009 | Pontiac | Vibe | Downstream | OE Style |
| 2009 | Toyota | Corolla | Downstream | OE Style |
| 2009 | Toyota | Matrix | Downstream | OE Style |
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