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Delphi ES20027 Oxygen Sensor - Front or Rear
| Brand | Delphi ES20027 |
|---|---|
| Position | Rear and Front |
| Sensor Type | Heated |
| Wire Quantity | 4 |
| Connector Shape | Flat |
| Thread Size | 18 x 1.5 mm |
| Overall Length | 555.0 |
| Package Contents | Oxygen sensor, instruction sheet |
| Position(s) | Front, rear. for the position specific to your vehicle, refer to |
| Fits | Mitsubishi · 8 vehicles |
Heated sensor. Delivers faster operation for quicker emissions feedback.
Flat connector. Simplifies hookup with a low-profile connection design.
OE heritage. Built with decades of original-equipment experience.
Cross-references BBB Industries 13890, Bosch 13891 and Continental 15591 for the same application. See all 33.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20027 Oxygen Sensor Overview
The Delphi ES20027 is a heated oxygen sensor built for precise exhaust feedback in select Mitsubishi applications. It supports front and rear sensor positions, making it a direct-fit option for specific Mitsubishi Lancer and Mitsubishi Galant applications.
- Heated oxygen sensor for faster operating temperature
- 4-wire design for signal and heater circuit control
- Flat connector shape for application-specific fitment
- 18 x 1.5 mm thread size
- Overall length: 555.0
- Package contents: oxygen sensor and instruction sheet
- Compatible with front and rear positions, depending on vehicle application
OE-Style Engineering
Delphi draws on more than a century of OE experience and supplier knowledge used by major automakers. That heritage is reflected in the ES20027 oxygen sensor, which is engineered to match the electrical and physical requirements of the listed applications. This part cross-references Bosch 13891 for the same application.
Vehicle Fitment
- Fits 2006 Mitsubishi Lancer, front.
- Fits 2004-2005 Mitsubishi Lancer, front.
- Fits 1994-1998 Mitsubishi Galant, rear.
What It Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio feedback to the engine control module
- Reduced fuel control caused by a slow or aging sensor
- Emissions test failures tied to sensor response issues
- Driveability concerns linked to inaccurate exhaust oxygen readings
Installation Notes
Verify the sensor position on your vehicle before ordering, since this part is used in both front and rear locations depending on application. Confirm thread size, connector shape, and wire count against the original sensor before installation. Use the included instruction sheet and follow the vehicle service procedure for proper removal and installation.
Quality Assurance
Delphi builds aftermarket parts using OE heritage and application knowledge developed through long-term supplier experience with top automakers. The ES20027 is produced to support the fit and function expected for the listed Mitsubishi applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Mitsubishi | Lancer | Front | From 04/2006 to 03/2006 |
| 2005 | Mitsubishi | Lancer | Front | — |
| 2004 | Mitsubishi | Lancer | Front | — |
| 1998 | Mitsubishi | Galant | Rear | — |
| 1997 | Mitsubishi | Galant | Rear | — |
| 1996 | Mitsubishi | Galant | Rear | — |
| 1995 | Mitsubishi | Galant | Rear | — |
| 1994 | Mitsubishi | Galant | Rear | — |
| No rows match your filter. | ||||