Delphi ES20111 Oxygen Sensor - Center or Rear

Delphi ES20111 Oxygen Sensor Overview

Delphi ES20111 is a heated oxygen sensor built for emission control service on select Chevrolet, Geo, and Suzuki applications. It uses a 4-wire design with a square connector and an 18 x 1.5 mm thread size for direct replacement on the listed rear and center positions.

Backed by Delphi’s OE heritage and decades of supplier experience, this oxygen sensor is built with the application details needed for accurate exhaust feedback on vehicles such as the Chevrolet Metro, Chevrolet Tracker, Suzuki Swift, Suzuki Vitara, and Geo Metro.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• 4-wire configuration
• Square connector shape
• 18 x 1.5 mm thread size
• Overall length: 635.0
• Includes oxygen sensor and instruction sheet
• Position-specific coverage for center and rear locations

Detailed Description

Delphi ES20111 is an emission control oxygen sensor engineered for vehicles that require a heated, 4-wire replacement in the center or rear exhaust position. The square connector and 18 x 1.5 mm thread size support straightforward matching to the original sensor layout, while the 635.0 overall length helps maintain proper routing and installation fitment. This part cross-references Bosch 13041 for the same application.

Compatible With 1998-2001 Chevrolet Metro, rear; 1999-2001 Chevrolet Tracker, center with California Emission System; 1996-2001 Suzuki Swift, rear; 1999-2000 Suzuki Vitara, rear with California Emission System; and 1996-1997 Geo Metro, rear. Delphi ES20111 is a practical replacement choice when servicing the listed emission-control positions on these vehicles.

What It Helps Address

• Check engine light concerns related to oxygen sensor performance
• Incorrect exhaust oxygen feedback to the engine control system
• Rough idle or drivability issues tied to aging sensor response
• Emission test failures caused by a worn rear or center sensor
• Connector or thread mismatch during oxygen sensor replacement

Installation Notes and Tips

Confirm the exact sensor position on your vehicle before ordering, since this part is listed for center and rear locations depending on application. Verify connector shape, wire count, and thread size against the original sensor before installation. Use the vehicle application details to match the correct Chevrolet Metro, Chevrolet Tracker, Suzuki Swift, Suzuki Vitara, or Geo Metro configuration.

Quality Assurance

Delphi draws on OE experience and supplier knowledge developed over many years of original-equipment service. That background is reflected in the design and application matching of ES20111 for the listed emission control fitments.