Delphi ES20325 Oxygen Sensor - Rear, Rear Left or Rear Right

Delphi ES20325 Oxygen Sensor Overview

The Delphi ES20325 is a heated oxygen sensor built for rear sensor locations on select Toyota and Lexus applications. It uses a 4-wire design with a square connector and 18 x 1.5 mm thread size for OE-style replacement on vehicles such as the Toyota Tacoma, 4Runner, Tundra, Land Cruiser, and Lexus GX460, LX470, LX570, and Avalon.

Delphi draws on OE experience and supplier knowledge developed over decades of original-equipment service, bringing that background into this aftermarket oxygen sensor. The ES20325 is a direct-fit style replacement for rear left, rear right, and rear positions where listed in the application data.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal response
• 4-wire configuration for the listed rear sensor applications
• Square connector shape for OE-style electrical connection
• 18 x 1.5 mm thread size for the specified exhaust bung
• 200.0 overall length for the listed vehicle applications
• Includes oxygen sensor and instruction sheet
• Delphi part number ES20325

Detailed Description

Delphi ES20325 is engineered for rear oxygen sensor service on a range of Toyota and Lexus models. It is listed for rear left, rear right, and rear positions depending on the vehicle, including 2005-2011 Toyota Tacoma rear right, 2005-2009 Toyota 4Runner rear right, 2007-2009 Toyota FJ Cruiser rear right, 2005-2006 Toyota Tundra rear left or rear right, and 2010-2013 Lexus GX460 rear left. It also covers applications such as the 2006-2007 Toyota Avalon rear left and 2008-2011 Lexus LX570 rear left.

This oxygen sensor cross-references Bosch 15672 and DENSO Auto Parts 234-4260 for the same application. The Delphi ES20325 is a practical OE-style replacement when servicing rear oxygen sensor faults on Toyota Tacoma, 4Runner, Tundra, and related Lexus models.

What It Helps Address

• Check engine light related to rear oxygen sensor performance
• Slow or inaccurate oxygen sensor response
• Fault codes tied to rear left, rear right, or rear sensor circuits
• Emissions inspection failures caused by a worn sensor
• Driveability issues linked to incorrect exhaust feedback

Installation Notes and Tips

Confirm the exact position before ordering, since this part is listed for rear left, rear right, and rear applications depending on the vehicle. Match the connector shape, wire count, and thread size to the original sensor before installation. For fitment-specific use, verify the application tab against your exact year, make, model, and sensor location.

Compatible With 2014 Lexus GX460 rear left, 2014 Lexus LX570 rear left, 2014 Toyota Land Cruiser rear left, 2010-2013 Lexus GX460 rear left, 2013 Lexus LX570 rear left, 2008-2011 Lexus LX570 rear left, 2013 Toyota Land Cruiser rear left, 2006-2011 Toyota Land Cruiser rear left, 2005-2011 Toyota Tacoma rear right, 2005-2009 Toyota 4Runner rear right, 2007-2009 Toyota FJ Cruiser rear right, 2006-2007 Lexus LX470 rear left, 2006-2007 Toyota Avalon rear left, 2005-2007 Toyota Sequoia rear, 2005-2006 Toyota Tundra rear, 2005-2006 Toyota Tundra rear right, 2005-2006 Toyota Tundra rear left, 2005 Lexus LX470 rear left, and 2005 Toyota Land Cruiser rear left.

Quality Assurance

Delphi builds this replacement sensor using OE heritage and technical knowledge developed through long-term supplier experience with major automakers. That background supports consistent fitment and sensor construction for the listed Toyota and Lexus rear oxygen sensor applications.