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Delphi ES20206 Oxygen Sensor - Front or Front Left
| Brand | Delphi ES20206 |
|---|---|
| Position | Front Left |
| Connector Shape | Square |
| Overall Length | 270.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Position(s) | Front, Front Left. For the position specific to your vehicle, refer to the Application tab. |
| Sensor Type | Heated |
| Thread Size | 18 x 1.5 mm |
| Wire Quantity | 4 |
| Fits | Jeep · 4 vehicles |
Heated sensor. Provides faster operation for more responsive emissions monitoring.
Square connector. Simplifies installation with a straightforward electrical connection.
OE heritage. Built with 100 years of OE experience and supplier knowledge.
Cross-references BBB Industries 13670, DENSO Auto Parts 234-4217 and Gates 23139 for the same application. See all 18.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Delphi ES20206 Oxygen Sensor Overview
The Delphi ES20206 is a heated oxygen sensor built for specific Jeep applications, including the 2001 Jeep Grand Cherokee and 2002-2003 Jeep Liberty. It uses OE-based engineering from Delphi’s long history supplying original equipment to major automakers, helping support accurate exhaust feedback in the emissions system.
- Heated oxygen sensor for faster operating temperature
- 4-wire design for signal and heater circuit operation
- Square connector shape for application-specific fitment
- 18 x 1.5 mm thread size
- Overall length: 270.0
- Package contents: oxygen sensor and instruction sheet
- Position-specific fitment for front and front left locations
Fitment Details
Fits 2002-2003 Jeep Liberty, front left. Fits 2001 Jeep Grand Cherokee, front, without California Emission System; for cylinders 4 to 6 only. This Delphi ES20206 oxygen sensor is a direct-fit option for drivers searching for a Jeep Liberty front left oxygen sensor or a 2001 Jeep Grand Cherokee front oxygen sensor with the listed emission and engine restrictions.
This part cross-references DENSO Auto Parts 234-4217 for the same application.
What It Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio feedback to the engine control module
- Slow sensor response during warm-up
- Emissions system faults tied to front sensor readings
- Rough idle or drivability issues caused by inaccurate exhaust data
Installation Notes
Confirm the exact position on your vehicle before ordering, since this sensor is listed for front and front left applications. Verify thread size, connector shape, and wire count against the original part before installation. For the 2001 Jeep Grand Cherokee, match the note for vehicles without California Emission System and cylinders 4 to 6 only.
Quality Assurance
Delphi builds aftermarket parts using OE heritage and knowledge developed through more than 100 years of original equipment experience. The ES20206 reflects that background in a replacement oxygen sensor for specified Jeep applications.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2003 | Jeep | Liberty | — | Front Left | — |
| 2002 | Jeep | Liberty | Sport | Front Left | — |
| 2002 | Jeep | Liberty | Limited | Front Left | — |
| 2001 | Jeep | Grand Cherokee | — | Front | without California Emission System; For Cylinders 4 to 6 Only |
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