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Denso 234-4590 Oxygen Sensor - Upstream
| Brand | Denso 234-4590 |
|---|---|
| Position | Upstream |
| Wiring Harness Length | 11.81 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Connector Gender | Female |
| Thread Diameter | 0.708 |
| Mounting Type | Threaded |
| Product line | OE Style |
| Fits | Chrysler and Dodge · 2 vehicles |
OE style. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps maintain accurate readings for dependable engine performance.
Threaded mounting. Specific-fit design with a female connector and 4-wire harness.
Cross-references ACDelco 213-3001, BorgWarner OS1623 and Bosch 15300 for the same application. See all 9.
Denso 234-4590 Oxygen Sensor for OE-Style Replacement
Denso 234-4590 is a heated oxygen sensor built to OE-style specifications for direct replacement on select Chrysler and Dodge applications. It is engineered for a specific fit and precise sensor response, making it a practical choice for restoring accurate exhaust feedback on 2003 Chrysler Voyager and 2003 Dodge Caravan upstream positions.
Key Features
- Heated oxygen sensor for faster operating temperature and stable signal output
- Specific-fit design for direct replacement on listed applications
- 4-wire configuration with female connector
- Threaded mounting type with 0.708 in. thread diameter
- 11.81 in. wiring harness length for OE-style routing
- Built to strict OE standards with precision-built replacement dimensions
- Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination
Product Details
The Denso OE Style line focuses on exact replacement fitment and consistent sensor performance. Part number 234-4590 is designed for upstream use on 2003 Chrysler Voyager and 2003 Dodge Caravan models, where accurate oxygen sensing supports proper fuel control and emissions system operation. This part cross-references Bosch 15300 and NTK 23144 for the same application.
What This Oxygen Sensor Helps Address
- Check engine light concerns related to oxygen sensor performance
- Incorrect air-fuel ratio feedback from a worn upstream sensor
- Reduced fuel economy caused by slow or inaccurate sensor response
- Emissions test failures tied to faulty exhaust monitoring
- Driveability issues associated with contaminated or aging sensor elements
Installation Notes and Tips
Verify the connector style, wire count, thread diameter, and upstream position before installation. Use the vehicle’s existing harness routing as a guide and confirm the sensor seats fully in the threaded mounting location. For 2003 Chrysler Voyager and 2003 Dodge Caravan applications, compare the original sensor length and connector orientation to Denso 234-4590 before final tightening.
Quality Assurance
Denso manufactures and tests this OE Style oxygen sensor to strict original-equipment standards. The design emphasizes first-time fitment, accurate replacement dimensions, and contamination resistance for dependable service life.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2003 | Chrysler | Voyager | Upstream | OE Style |
| 2003 | Dodge | Caravan | Upstream | OE Style |
| No rows match your filter. | ||||