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Denso 234-5032 Air / Fuel Ratio Sensor - Upstream
| Brand | Denso 234-5032 |
|---|---|
| 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 | 11.61 |
| Product line | OE Style |
| Fits | Ford, Mazda, and Mercury · 4 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Built to deliver accurate air-fuel ratio readings.
Specific fit. Made to match the part requirements exactly.
Cross-references Bosch 18116, Ford 9E5Z9F472B and Mazda CA07188G1 for the same application. See all 8.
Denso OE Style Air/Fuel Ratio Sensor
The Denso 234-5032 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Ford, Mazda, and Mercury applications. It is engineered for exact replacement dimensions and first-time fit, with a 5-wire design and male connector for direct service on the correct upstream location.
Key Features
- OE Style replacement sensor for emission control service
- Heated sensor design for faster operating temperature
- Specific fit for direct application matching
- 5-wire configuration with male connector
- Wiring harness length: 11.61
- Thread diameter: 0.711
- Part number: 234-5032
Product Details
Denso OE Style sensors are manufactured and tested to OE-level standards, with precision-built components intended to match the original sensor form and function. This air/fuel ratio sensor is a direct replacement for upstream service on 2010 Ford Fusion, 2009-2010 Mazda 6, and 2010 Mercury Milan. If you are searching for a 2010 Ford Fusion upstream air/fuel ratio sensor or a 2009-2010 Mazda 6 upstream sensor, Denso 234-5032 provides the correct fitment profile for those applications. This part cross-references Ford 9E5Z9F472B for the same application.
Common Issues This Sensor May Address
- Check engine light related to air/fuel ratio sensor performance
- Incorrect upstream oxygen sensor or mixture readings
- Rough idle caused by inaccurate fuel trim feedback
- Reduced fuel control response from a worn heated sensor
- Emission control faults tied to sensor signal degradation
Installation Notes and Tips
Verify the upstream sensor location and connector style before installation. Confirm the thread diameter and harness length match the original unit, and inspect the wiring route to avoid strain or contact with hot exhaust components. For best results, compare the old sensor connector and wire count to the replacement before final tightening.
Quality Assurance
Denso manufactures this OE Style sensor to strict original-equipment standards and tests each component for replacement accuracy and fit consistency. The 234-5032 is built as a specific-fit service part for the listed Ford, Mazda, and Mercury applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Ford | Fusion | Upstream | To 08/03/09; OE Style |
| 2010 | Mazda | 6 | Upstream | OE Style |
| 2010 | Mercury | Milan | Upstream | To 08/03/09; OE Style |
| 2009 | Mazda | 6 | Upstream | OE Style |
| No rows match your filter. | ||||