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Denso 234-5703 Air / Fuel Ratio Sensor - Upstream or Upstream Left
| Brand | Denso 234-5703 |
|---|---|
| Position | Upstream Left |
| Connector Gender | Male |
| Grade Type | Regular |
| Sensor Type | Heated |
| Thread Diameter | 0.711 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Wiring Harness Length | 34.17 |
| Product line | OE Style |
| Fits | Volvo · 10 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps maintain accurate air-fuel ratio monitoring.
Five-wire design. Built with a male connector for straightforward installation.
Cross-references ACDelco 213-3900, ACDelco 213-3901 and Bosch 17036 for the same application. See all 19.
Denso OE Style Air/Fuel Ratio Sensor
Denso 234-5703 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Volvo applications. It is engineered for accurate signal response and a first-time fit, making it a direct choice for drivers servicing upstream sensor faults on Volvo S80 and XC90 models.
Key Features
- Heated air/fuel ratio sensor for faster operating temperature and stable feedback
- Specific-fit design for direct replacement on confirmed applications
- 5-wire configuration with male connector
- Wiring harness length: 34.17
- Thread diameter: 0.711
- OE Style construction for factory-like fit and function
Product Details
Denso 234-5703 is manufactured and tested to OE standards for consistent performance in emission control systems. As part of Denso’s OE Style line, this sensor is built as a direct replacement component for vehicles that require an upstream left or upstream air/fuel ratio sensor. It is a practical option for Volvo S80 and Volvo XC90 service work where precise air-fuel feedback is needed for engine management and emissions control.
This part cross-references Bosch 17036 and NTK 24306 for the same application.
Vehicle Fitment
- Fits 2002-2005 Volvo S80, Upstream Left, OE Style
- Fits 2003-2005 Volvo XC90, Upstream Left, OE Style
- Fits 1999-2001 Volvo S80, Upstream, OE Style
Common Issues This Sensor May Address
- Check engine light related to air/fuel ratio sensor performance
- Rough idle caused by inaccurate upstream sensor readings
- Fuel trim concerns from delayed or inconsistent sensor response
- Emissions test failure tied to sensor fault codes
- Poor drivability from degraded oxygen sensor feedback
Installation Notes and Tips
Confirm the connector style, wire count, and sensor position before installation. This Denso 234-5703 sensor is a specific-fit replacement, so matching the upstream left or upstream location on the vehicle is important for proper installation. Inspect the harness routing and thread engagement during service to help ensure a secure fit.
Quality Assurance
Denso manufactures this OE Style sensor to strict original-equipment standards and tests each component for replacement accuracy and fit consistency. The goal is a direct-fit part that matches the intended Volvo application without modification.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Volvo | S80 | Upstream Left | OE Style |
| 2005 | Volvo | XC90 | Upstream Left | OE Style |
| 2004 | Volvo | S80 | Upstream Left | OE Style |
| 2004 | Volvo | XC90 | Upstream Left | OE Style |
| 2003 | Volvo | S80 | Upstream Left | OE Style |
| 2003 | Volvo | XC90 | Upstream Left | OE Style |
| 2002 | Volvo | S80 | Upstream Left | OE Style |
| 2001 | Volvo | S80 | Upstream | OE Style |
| 2000 | Volvo | S80 | Upstream | OE Style |
| 1999 | Volvo | S80 | Upstream | OE Style |
| No rows match your filter. | ||||