Delphi ES20207 Oxygen Sensor - Rear

Delphi ES20207 Rear Oxygen Sensor

Delphi ES20207 is a heated rear oxygen sensor built for precise exhaust monitoring on select Chrysler and Dodge minivans. It uses a 4-wire design, a round connector, and an 18 x 1.5 mm thread size for direct-fit replacement in the listed applications.

Compatible With 2001-2003 Chrysler Town & Country, rear; 2001-2003 Chrysler Voyager, rear; 2001-2003 Dodge Caravan, rear; and 2001-2003 Dodge Grand Caravan, rear. This part number is also searched as ES20207 for rear oxygen sensor replacement on these vehicles.

Key Features

• Heated oxygen sensor for rear exhaust monitoring
• 4-wire configuration for the listed OE-style applications
• Round connector shape for proper harness connection
• 18 x 1.5 mm thread size
• Overall length: 520.0
• Includes oxygen sensor and instruction sheet
• Rear position application

Detailed Description

Delphi brings more than a century of OE experience to this oxygen sensor, with supplier knowledge drawn from work with major automakers. The ES20207 is engineered as a rear heated oxygen sensor for 2001-2003 Chrysler Town & Country, Chrysler Voyager, Dodge Caravan, and Dodge Grand Caravan applications. Its heated design helps the sensor reach operating temperature quickly, supporting accurate exhaust feedback in the rear location.

Use ES20207 when replacing a rear oxygen sensor on these minivan platforms and when matching the specified 4-wire, round-connector, 18 x 1.5 mm configuration. The part number ES20207 is a useful reference when cross-checking catalog listings for Chrysler Town & Country and Dodge Grand Caravan rear oxygen sensor service.

This part cross-references Bosch 13674 and DENSO Auto Parts 234-4010 for the same application.

What It Helps Address

• Check engine light related to rear oxygen sensor faults
• Incorrect exhaust oxygen readings from a worn sensor
• Slow sensor response after extended mileage
• Connector or thread-matching issues during replacement
• Emissions system performance concerns on the listed vehicles

Installation Notes and Tips

Verify the rear sensor location before ordering and match the connector shape, wire count, and thread size to the original part. Inspect the harness routing and exhaust bung condition before installation, and follow the included instruction sheet for vehicle-specific service steps. Confirm fitment against the exact model year and rear position listed for Chrysler Town & Country, Chrysler Voyager, Dodge Caravan, and Dodge Grand Caravan.

Quality Assurance

Delphi builds this sensor using OE heritage and application knowledge developed through long-term supplier experience with top automakers. ES20207 is specified for the listed rear applications and is backed by Delphi’s aftermarket engineering approach.