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Denso 234-5430 Air / Fuel Ratio Sensor - Upstream
| Brand | Denso 234-5430 |
|---|---|
| Position | Upstream |
| Connector Gender | Male |
| Grade Type | Regular |
| Sensor Type | Heated |
| Thread Diameter | 0.711 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Wiring Harness Length | 20.87 |
| Product line | OE Style |
| Fits | Hyundai and Kia · 18 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Engineered for reliable air-fuel ratio monitoring.
Specific fit. Made to match the application precisely.
Cross-references ACDelco 213-3902, BorgWarner OS1606 and BorgWarner OS2328 for the same application. See all 15.
Denso OE Style Air/Fuel Ratio Sensor
Denso 234-5430 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Hyundai Elantra, Kia Spectra, and Kia Spectra5 applications. It is engineered to match factory-style dimensions and connector layout for a direct replacement on upstream positions.
Key Features
- Heated air/fuel ratio sensor for upstream exhaust placement
- Specific-fit design for direct replacement service
- 5-wire configuration with male connector
- Wiring harness length: 20.87
- Thread diameter: 0.711
- OE Style construction for factory-style fit and function
Product Details
Denso 234-5430 is manufactured and tested to OE standards for precise replacement performance. The OE Style line focuses on exact-fit components that match original equipment requirements, helping simplify service on emissions and fuel-control systems. This sensor is a heated type with a 5-wire layout, making it a direct match for vehicles that require an upstream air/fuel ratio sensor in the listed applications. This part cross-references Bosch 15646 and NTK 24304 for the same application.
Vehicle Fitment
- Fits 2007-2009 Hyundai Elantra, Upstream, OE Style
- Fits 2005 Hyundai Elantra, Upstream, OE Style
- Fits 2004-2009 Kia Spectra, Upstream, OE Style
- Fits 2005-2009 Kia Spectra5, Upstream, OE Style
- Fits 2006 Hyundai Elantra, Upstream, SULEV; OE Style
- Fits 2004 Hyundai Elantra, Upstream, SULEV; Exc. Calif.; From 7/01/2003; OE Style
- Fits 2003 Hyundai Elantra, Upstream, California exempt parts can be used on pollution controlled vehicles in California.; OE Style
Common Replacement Symptoms
- Check engine light related to air/fuel ratio or oxygen sensor performance
- Rough idle or inconsistent fuel mixture control
- Reduced fuel economy from inaccurate exhaust feedback
- Failed emissions inspection tied to sensor faults
- Slow sensor response or upstream sensor circuit codes
Installation Notes
Confirm the connector style, wire count, and upstream location before installation. Match the thread diameter and harness length to the original sensor on the vehicle. For Hyundai Elantra, Kia Spectra, and Kia Spectra5 applications, verify the exact model year and emissions note shown in the fitment list before ordering.
Quality Assurance
Denso builds this OE Style sensor to strict original-equipment standards and tests each component for replacement accuracy and first-time fit. The 234-5430 is made for direct service on the listed applications with factory-style fitment and connector compatibility.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2009 | Hyundai | Elantra | — | Upstream | OE Style |
| 2009 | Kia | Spectra | — | Upstream | OE Style |
| 2009 | Kia | Spectra5 | — | Upstream | OE Style |
| 2008 | Hyundai | Elantra | — | Upstream | OE Style |
| 2008 | Kia | Spectra | — | Upstream | OE Style |
| 2008 | Kia | Spectra5 | — | Upstream | OE Style |
| 2007 | Hyundai | Elantra | — | Upstream | OE Style |
| 2007 | Kia | Spectra | — | Upstream | OE Style |
| 2007 | Kia | Spectra5 | — | Upstream | OE Style |
| 2006 | Hyundai | Elantra | — | Upstream | SULEV; OE Style |
| 2006 | Kia | Spectra | — | Upstream | OE Style |
| 2006 | Kia | Spectra5 | — | Upstream | OE Style |
| 2005 | Hyundai | Elantra | — | Upstream | OE Style |
| 2005 | Kia | Spectra | — | Upstream | OE Style |
| 2005 | Kia | Spectra5 | — | Upstream | OE Style |
| 2004 | Hyundai | Elantra | — | Upstream | SULEV; Exc. Calif.; From 7/01/2003; OE Style |
| 2004 | Kia | Spectra | — | Upstream | OE Style |
| 2003 | Hyundai | Elantra | Automatic | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
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