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Delphi ES20210 Oxygen Sensor - Rear or Rear Left
| Brand | Delphi ES20210 |
|---|---|
| Position | Rear |
| Connector Shape | Square |
| Overall Length | 320.0 |
| Package Contents | Oxygen Sensor, Instruction Sheet |
| Position(s) | Rear, Rear 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 and Dodge · 19 vehicles |
Heated sensor. Delivers faster operating temperature for quicker response.
Square connector. Simplifies installation with a straightforward electrical connection.
OE heritage. Built with decades of original-equipment experience.
Cross-references BBB Industries 13671, Bosch 13714 and Carlson 15304 for the same application. See all 19.
Delphi ES20210 Oxygen Sensor Overview
The Delphi ES20210 is a heated oxygen sensor built for rear and rear left applications on select Jeep and Dodge vehicles. It combines OE-based engineering with a 4-wire design, square connector, and 18 x 1.5 mm thread size for direct replacement service on listed applications.
Compatible With 2001-2004 Jeep Wrangler rear, 2001-2003 Dodge Dakota rear without California Emission System, 2001-2003 Dodge Durango rear without California Emission System, 2003 Dodge Ram 1500 rear, and 2002-2003 Jeep Liberty rear left. Delphi ES20210 is also listed for 2001-2002 Dodge Dakota rear and 2002 Jeep Liberty rear.
Key Features
- Heated oxygen sensor for rear and rear left positions
- 4-wire configuration for listed vehicle applications
- Square connector shape for OE-style electrical connection
- 18 x 1.5 mm thread size
- Overall length: 320.0
- Package includes oxygen sensor and instruction sheet
- OE heritage backed by Delphi’s long history supplying original equipment to major automakers
Detailed Description
Delphi ES20210 is an emission control oxygen sensor engineered around OE experience and application-specific fitment. It is used in the exhaust stream to monitor oxygen content and support engine management on the rear sensor locations listed for Jeep Wrangler, Jeep Liberty, Dodge Dakota, Dodge Durango, and Dodge Ram 1500. This part number, ES20210, is a direct-fit replacement choice for vehicles requiring a heated, 4-wire sensor with a square connector and 18 x 1.5 mm threads.
This part cross-references Bosch 13714 and DENSO Auto Parts 234-4772 for the same application.
What This Sensor Helps Address
- Check engine light related to rear oxygen sensor faults
- Incorrect oxygen sensor signal readings
- Emissions test failures tied to a worn sensor
- Rough fuel control caused by degraded exhaust feedback
- Replacement needs on rear or rear left sensor locations
Installation Notes and Tips
- Verify the exact position before ordering; this part is listed for rear and rear left locations.
- Confirm your vehicle is not equipped with California Emission System when matching Dodge Dakota and Dodge Durango applications.
- Check connector shape, wire count, and thread size against the original sensor before installation.
- Inspect the exhaust bung threads and wiring routing during replacement.
- Use the application tab or vehicle-specific catalog data to confirm ES20210 fitment for your trim and emission setup.
Quality Assurance
Delphi builds this oxygen sensor with OE heritage and application knowledge drawn from more than a century of original equipment experience. The ES20210 reflects that background in a replacement part designed for the listed Jeep and Dodge applications.
| Year | Make | Model | Submodel | Body Type | Transmission | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2004 | Jeep | Wrangler | — | — | — | Rear | — |
| 2003 | Dodge | Dakota | — | Crew Cab Pickup | — | Rear | without California Emission System |
| 2003 | Dodge | Durango | — | — | — | Rear | without California Emission System |
| 2003 | Dodge | Ram 1500 | — | — | Automatic | Rear | — |
| 2003 | Jeep | Liberty | — | — | — | Rear Left | — |
| 2003 | Jeep | Wrangler | — | — | — | Rear | — |
| 2002 | Dodge | Dakota | Sport | Crew Cab Pickup | — | Rear | without California Emission System |
| 2002 | Dodge | Dakota | SLT | Crew Cab Pickup | — | Rear | without California Emission System |
| 2002 | Dodge | Dakota | — | Crew Cab Pickup | — | Rear | without California Emission System |
| 2002 | Dodge | Dakota | Base | — | — | Rear | — |
| 2002 | Dodge | Durango | — | — | — | Rear | without California Emission System |
| 2002 | Jeep | Liberty | Sport | — | — | Rear Left | — |
| 2002 | Jeep | Liberty | Limited | — | — | Rear Left | — |
| 2002 | Jeep | Liberty | — | — | — | Rear | — |
| 2002 | Jeep | Wrangler | — | — | — | Rear | — |
| 2001 | Dodge | Dakota | — | Crew Cab Pickup | — | Rear | without California Emission System |
| 2001 | Dodge | Dakota | Base | — | — | Rear | — |
| 2001 | Dodge | Durango | Base | — | — | Rear | without California Emission System |
| 2001 | Jeep | Wrangler | — | — | — | Rear | — |
| No rows match your filter. | |||||||