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Delphi ES20412 Oxygen Sensor - Front
| Brand | Delphi ES20412 |
|---|---|
| Position | Front |
| Sensor Type | Heated |
| Wire Quantity | 4 |
| Connector Shape | Square |
| Thread Size | 18 x 1.5 mm |
| Overall Length | 490.0 |
| Package Contents | Oxygen sensor, instruction sheet |
| Fits | Mitsubishi · 16 vehicles |
Heated sensor. Built for faster operation and stable readings.
Square connector. Simplifies a secure, straightforward connection.
OE heritage. Backed by a century of OE experience and supplier knowledge.
Cross-references Bosch 15582, Bosch 15613 and DENSO Auto Parts 234-4316 for the same application. See all 25.
Delphi ES20412 Oxygen Sensor Overview
The Delphi ES20412 is a heated oxygen sensor built for front-position applications on select Mitsubishi vehicles. It combines OE-based engineering with the sensor specifications needed for accurate exhaust feedback and stable engine management.
Use this Delphi oxygen sensor when you need a direct-fit replacement for front sensor service on 2004-2012 Mitsubishi Eclipse and 2004-2011 Mitsubishi Galant applications.
Key Features
- Heated oxygen sensor for faster operating temperature and signal response
- 4-wire design with square connector shape
- 18 x 1.5 mm thread size for the listed applications
- Overall length: 490.0
- Front position sensor for select Mitsubishi Eclipse and Mitsubishi Galant models
- Package contents: oxygen sensor and instruction sheet
Detailed Product Description
Delphi ES20412 is an emission control sensor engineered from OE heritage and backed by Delphi’s long history supplying original equipment to major automakers. The heated design helps the sensor reach operating temperature quickly, supporting consistent exhaust monitoring in front sensor locations. With its 4-wire configuration, square connector, and 18 x 1.5 mm thread size, this part is specified for direct replacement in the listed Mitsubishi Eclipse and Mitsubishi Galant front applications. This part cross-references Bosch (e.g., 15582, 15613) for the same application.
What This Oxygen Sensor Helps Address
- Check engine light related to oxygen sensor performance
- Rough idle or inconsistent air-fuel feedback from a worn front sensor
- Reduced fuel control accuracy caused by slow sensor response
- Emission test failures tied to faulty exhaust oxygen readings
- Front sensor replacement needs on Mitsubishi Eclipse and Mitsubishi Galant models
Installation Notes and Tips
- Verify the front sensor location and connector shape before installation.
- Confirm thread size and overall length match the original sensor on the vehicle.
- Review the included instruction sheet before beginning service.
- For fitment, use the listed application details: Fits 2006-2012 Mitsubishi Eclipse, front, for cylinders 3 to 4 only; Fits 2004-2011 Mitsubishi Galant, front, for cylinders 1 to 4 only; Fits 2004 Mitsubishi Galant, front, 18in length.
Quality Assurance
Delphi builds this replacement sensor using OE experience and application knowledge developed through decades of original equipment supply. That OE heritage is reflected in the sensor design and the fitment-specific construction for the listed Mitsubishi applications.
| Year | Make | Model | Submodel | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Mitsubishi | Eclipse | — | — | Front | For Cylinders 3 to 4 Only |
| 2011 | Mitsubishi | Eclipse | — | — | Front | For Cylinders 3 to 4 Only |
| 2011 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
| 2010 | Mitsubishi | Eclipse | — | — | Front | For Cylinders 3 to 4 Only |
| 2010 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
| 2009 | Mitsubishi | Eclipse | — | — | Front | For Cylinders 3 to 4 Only |
| 2009 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
| 2008 | Mitsubishi | Eclipse | — | — | Front | For Cylinders 3 to 4 Only |
| 2008 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
| 2007 | Mitsubishi | Eclipse | — | — | Front | For Cylinders 3 to 4 Only |
| 2007 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
| 2006 | Mitsubishi | Eclipse | — | — | Front | For Cylinders 3 to 4 Only |
| 2006 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
| 2005 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
| 2004 | Mitsubishi | Galant | ES | GAS | Front | 18in Length |
| 2004 | Mitsubishi | Galant | — | — | Front | For Cylinders 1 to 4 Only |
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