Delphi ES20060 Oxygen Sensor - Center or Rear

Delphi ES20060 Oxygen Sensor Overview

The Delphi ES20060 is a heated oxygen sensor built for emission control service on select Toyota, Chevrolet, and Geo applications. It uses a 4-wire design with a square connector and 18 x 1.5 mm thread size, making it a direct-fit replacement for center and rear sensor locations listed below.

Backed by Delphi’s OE heritage and decades of supplier experience, this oxygen sensor is built with the application details needed for accurate exhaust monitoring on vehicles such as the Toyota Camry, Toyota Corolla, and Toyota Avalon.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• 4-wire configuration with square connector
• 18 x 1.5 mm thread size for listed applications
• Overall length: 350.0
• Includes oxygen sensor and instruction sheet
• Position-specific coverage for center and rear locations

Detailed Description

Delphi ES20060 is an emission control sensor engineered for vehicles that rely on precise exhaust feedback to manage fuel delivery and emissions performance. It is listed for rear applications on the 1995-2002 Toyota Corolla, 2000-2004 Toyota Avalon, 1995-1998 Toyota Tercel, 1996-1998 Toyota Paseo, 1995-1997 Geo Prizm, and 1998-2002 Chevrolet Prizm, plus center application coverage on the 2003-2006 Toyota Camry with California Emission System. This part number, ES20060, is also referenced in cross-application catalogs for select OE-style replacements.

This part cross-references DENSO Auto Parts (e.g., 234-4061, 234-4624) for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback from a worn sensor
• Slow sensor response during closed-loop operation
• Emission test failures tied to exhaust monitoring faults
• Rough idle or drivability issues caused by inaccurate exhaust readings

Installation Notes and Tips

Confirm the sensor position before ordering, since ES20060 is listed for center and rear locations depending on vehicle application. Verify thread size, connector shape, and wire count against the original sensor before installation. For the 2003-2006 Toyota Camry, use the California Emission System listing shown in the fitment data. Always compare the vehicle’s original connector and routing to the replacement part before final installation.

Quality Assurance

Delphi builds aftermarket parts using OE experience and supplier knowledge developed over many years with major automakers. That OE heritage is reflected in the application-specific design and sensor construction of the ES20060 oxygen sensor.