OE Quality
60-Day Returns

Denso 234-5075 Air / Fuel Ratio Sensor - Upstream or Upstream Left
Overview of the Denso OE Style Air/Fuel Ratio Sensor 234-5075
The Denso OE Style Air/Fuel Ratio Sensor 234-5075 is designed specifically for select Dodge, Fiat, and Mitsubishi vehicles. This heated sensor ensures accurate air and fuel mixture readings to support optimal engine performance and emissions control.
- Heated sensor type for faster response times
- Specific fit for Dodge Dart, Fiat 500, and Mitsubishi Outlander models
- Wiring harness length of 20.55 inches for precise installation
- Five-wire configuration with a male connector
- Thread diameter of 0.711 inches for secure mounting
- Regular grade type for reliable operation
Detailed Product Description
The Denso 234-5075 air/fuel ratio sensor is engineered to provide accurate feedback to the engine control unit by measuring the oxygen content in the exhaust gases. This heated sensor type improves warm-up time, allowing the engine to reach optimal operating conditions more quickly. With a wiring harness length of 20.55 inches and a five-wire setup, this sensor is designed for a specific fit, ensuring compatibility with Dodge Dart, Fiat 500, and Mitsubishi Outlander models. The male connector and 0.711-inch thread diameter facilitate straightforward installation and secure connection.
This sensor is part of Denso's OE Style product line, which focuses on delivering components that meet original equipment specifications. The OE Style line is intended to provide a direct replacement solution that maintains factory performance and reliability without modification.
Common Applications and Issues Addressed
- Helps maintain proper air/fuel mixture for efficient combustion
- Reduces emissions by providing accurate sensor data to the ECU
- Prevents engine performance issues such as rough idling or hesitation
- Addresses check engine light triggers related to oxygen sensor faults
- Supports fuel economy by ensuring optimal sensor operation
Installation Notes and Tips
- Verify compatibility with your vehicle’s make and model before installation
- Ensure the wiring harness length of 20.55 inches is sufficient for your setup
- Use proper tools to avoid damaging the 0.711-inch threaded sensor
- Check the male connector for secure and corrosion-free connection
- Follow manufacturer torque specifications during installation
Quality Assurance and Warranty
Denso’s OE Style air/fuel ratio sensor 234-5075 is manufactured to meet original equipment standards, ensuring consistent performance and durability. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Always consult the product documentation or your supplier for exact warranty terms.
| Brand | Denso |
|---|---|
| Part Number | 234-5075 |
| Position | OE Style, 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 | 20.55 |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2017 | Fiat | 500 | c Pop | Upstream | OE Style |
| 2017 | Fiat | 500 | c Lounge | Upstream | OE Style |
| 2017 | Fiat | 500 | Pop | Upstream | OE Style |
| 2017 | Fiat | 500 | Lounge | Upstream | OE Style |
| 2016 | Fiat | 500 | Upstream | OE Style | |
| 2015 | Dodge | Dart | Upstream | OE Style | |
| 2015 | Fiat | 500 | Upstream | OE Style | |
| 2015 | Mitsubishi | Outlander | Upstream Left | OE Style | |
| 2014 | Dodge | Dart | Upstream | OE Style | |
| 2014 | Fiat | 500 | Upstream | OE Style | |
| 2014 | Mitsubishi | Outlander | Upstream Left | OE Style | |
| 2013 | Dodge | Dart | Upstream | OE Style | |
| 2013 | Fiat | 500 | Upstream | OE Style | |
| 2012 | Fiat | 500 | Upstream | OE Style |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.