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Denso 234-5049 Air / Fuel Ratio Sensor - Upstream
| Brand | Denso 234-5049 |
|---|---|
| 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 | 26.57 |
| Product line | OE Style |
| Fits | Mitsubishi · 9 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Provides fast, consistent air-fuel ratio monitoring.
Specific fit. Made for a direct, exact replacement application.
Cross-references Mitsubishi 1588A221, NTK 24398 and Walker Products 250-25084 for the same application. See all 4.
Denso OE Style Air/Fuel Ratio Sensor
The Denso 234-5049 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Mitsubishi applications. It is engineered for direct replacement service with the correct connector style, wire count, and thread size for the listed vehicles.
For drivers searching for a Mitsubishi Lancer upstream air fuel ratio sensor or an Outlander Sport upstream sensor replacement, this Denso part number 234-5049 provides a direct-fit solution matched to the original application.
Key Features
- OE Style replacement air/fuel ratio sensor for emission control service
- Heated sensor design for faster operating temperature
- Specific fit for direct replacement on listed Mitsubishi models
- 5-wire configuration with male connector
- Wiring harness length: 26.57
- Thread diameter: 0.711
- Built and tested to OE standards for replacement accuracy
Product Details
Denso 234-5049 is designed as an OE-style air/fuel ratio sensor for upstream placement on select Mitsubishi Lancer and Mitsubishi Outlander Sport vehicles. The sensor is precision-built for exact replacement and first-time fit, helping maintain proper feedback to the engine management system. If you need a Mitsubishi Lancer upstream air fuel ratio sensor or a Mitsubishi Outlander Sport upstream sensor, this part number 234-5049 matches the listed fitment and connector requirements.
This part cross-references NTK 24398 for the same application.
What It Helps Address
- Check engine light related to air/fuel ratio sensor performance
- Incorrect fuel trim readings from a failing upstream sensor
- Rough idle or drivability concerns tied to sensor feedback
- Emission control faults caused by degraded sensor response
- Replacement needs after sensor aging, contamination, or electrical failure
Installation Notes
Install only on the listed upstream applications for 2011-2016 Mitsubishi Lancer and 2011-2013 Mitsubishi Outlander Sport. Verify connector style, thread diameter, and harness length before installation. Use the vehicle’s original routing and mounting points to avoid wire strain and ensure proper sensor operation.
Fitment includes 2016 Mitsubishi Lancer upstream; 2015 Mitsubishi Lancer upstream; 2011-2013 Mitsubishi Lancer upstream; 2013 Mitsubishi Outlander Sport upstream; 2011-2012 Mitsubishi Outlander Sport upstream; and 2011 Mitsubishi Lancer upstream at the manifold location.
Quality Assurance
Denso manufactures and tests this OE Style sensor to strict original-equipment standards for replacement accuracy and consistent fit. The 234-5049 is built as a direct replacement part for the listed Mitsubishi applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2016 | Mitsubishi | Lancer | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2015 | Mitsubishi | Lancer | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2013 | Mitsubishi | Lancer | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2013 | Mitsubishi | Outlander Sport | Upstream | OE Style |
| 2012 | Mitsubishi | Lancer | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2012 | Mitsubishi | Outlander Sport | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2011 | Mitsubishi | Lancer | Upstream | Calif.; Loc. Manifold; OE Style |
| 2011 | Mitsubishi | Lancer | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2011 | Mitsubishi | Outlander Sport | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
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