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Denso 234-4963 Oxygen Sensor - Downstream
| Brand | Denso 234-4963 |
|---|---|
| Position | Downstream |
| Wiring Harness Length | 29.33 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Product line | OE Style |
| Fits | Ford · 4 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps deliver accurate readings for dependable engine performance.
Aluminum oxide trap layer. Protects the ceramic element from silicone and lead poisoning.
Cross-references Bosch 16313, Ford CV6Z9G444C and NTK 22539 for the same application. See all 5.
Denso OE Style Oxygen Sensor for Fiesta
Denso 234-4963 is an OE-style heated oxygen sensor built for direct replacement on select Ford applications. It is engineered for the downstream position on 2014-2017 Ford Fiesta models and uses a specific-fit design for accurate installation and signal performance.
Key Features
- Heated oxygen sensor for downstream exhaust monitoring
- Specific-fit design for 2014-2017 Ford Fiesta, downstream
- 4-wire configuration with a 29.33 in. wiring harness length
- OE-style replacement built to match factory fit and function
- Aluminum oxide trap layer helps protect the sensing element from silicone and lead contamination
- Designed for stable engine management, fuel control, and emissions feedback
Product Details
This Denso oxygen sensor is part of the OE Style line, which focuses on direct-replacement coverage and factory-style fitment. The sensor is precision built for the listed Ford Fiesta application and is intended to restore accurate exhaust gas feedback in the downstream location. Denso 234-4963 is also cross-referenced to Bosch 16313 for the same application.
For drivers searching for a 2014-2017 Ford Fiesta downstream oxygen sensor, this part provides a specific-fit solution with the correct harness length and wire count for the application. It is a practical choice when replacing a worn or slow-responding sensor on the Fiesta exhaust system.
Common Issues This Part Can Address
- Check engine light related to downstream oxygen sensor faults
- Incorrect exhaust oxygen readings affecting emissions monitoring
- Reduced fuel economy caused by inaccurate sensor feedback
- Rough or inconsistent engine performance tied to sensor degradation
- Contamination-related sensor failure from silicone or lead exposure
Installation Notes
Verify the vehicle is a 2014-2017 Ford Fiesta with the downstream sensor location before ordering. Match the connector style, wire count, and harness length to the original part. Inspect the exhaust threads and wiring routing during replacement to avoid damage from heat or corrosion. This part number is 234-4963.
Quality Assurance
Denso manufactures and tests its oxygen sensors to OE standards, with precision construction aimed at consistent fit and reliable operation. The OE Style line is built as a direct replacement for the listed application, and the sensor includes Denso’s contamination-resistant trap layer for added protection of the ceramic element.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2017 | Ford | Fiesta | Downstream | OE Style |
| 2016 | Ford | Fiesta | Downstream | OE Style |
| 2015 | Ford | Fiesta | Downstream | OE Style |
| 2014 | Ford | Fiesta | Downstream | OE Style |
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