Delphi ES20327 Oxygen Sensor

Delphi ES20327 Oxygen Sensor Overview

Delphi ES20327 is a heated oxygen sensor built for precise exhaust monitoring on select Toyota and Lexus applications. It uses a 4-wire design with a square connector and 18 x 1.5 mm thread size, making it a direct-fit option for front and rear sensor locations where specified by the vehicle application.

Backed by Delphi’s OE heritage and decades of supplier experience, this oxygen sensor is engineered with production-level knowledge carried into the aftermarket. It is a strong match for Toyota Camry, Toyota Tacoma, Toyota Solara, Lexus ES300, and other listed applications that require accurate air-fuel feedback.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• 4-wire configuration for select factory-style applications
• Square connector shape for proper electrical connection
• 18 x 1.5 mm thread size for listed Toyota and Lexus fitments
• Overall length: 300.0
• Package contents: oxygen sensor and instruction sheet
• Fits front, front left, front right, rear, and rear left positions depending on vehicle application

Fitment Details

• Fits 2007-2017 Toyota Camry, rear.
• Fits 2012-2015 Toyota Tacoma, rear.
• Fits 2007-2008 Toyota Solara, rear.
• Fits 2006 Toyota Solara, rear, from 05/2006.
• Fits 2003-2004 Lexus GX470, rear left.
• Fits 2003 Toyota 4Runner, rear left.
• Fits 2002-2003 Toyota Solara, front.
• Fits 2001 Toyota Camry, front right, USA built.
• Fits 2001 Toyota Camry, front left, USA built.
• Fits 2001 Toyota Solara, front right.
• Fits 2001 Toyota Solara, front left.
• Fits 1997-2000 Toyota Camry, front, without California Emission System.
• Fits 1999-2000 Toyota Sienna, front, without California Emission System.
• Fits 1999-2000 Toyota Solara, front, without California Emission System.
• Fits 1997-1999 Toyota Avalon, front, without California Emission System.
• Fits 1997-1998 Lexus ES300, front, without California Emission System.
• Fits 1998 Toyota Sienna, front.
• Fits 1994-1996 Lexus ES300, front.
• Fits 1995-1996 Toyota Avalon, front.
• Fits 1994-1996 Toyota Camry, front.
• Fits 1996 Toyota Paseo, front.
• Fits 1995-1996 Toyota Tercel, front.
• Fits 1995 Toyota Paseo, front, with California Emission System.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn upstream or downstream sensor
• Rough idle or drivability issues tied to exhaust feedback faults
• Reduced fuel economy caused by inaccurate sensor input
• Emission test failures linked to a failing oxygen sensor

Installation Notes and Tips

Confirm the exact sensor position on your vehicle before ordering, since this part is listed for front, front left, front right, rear, and rear left applications. Verify connector shape, wire count, thread size, and overall length against the original sensor before installation. For Toyota Camry, Toyota Solara, and Lexus ES300 applications, check the vehicle’s emission configuration and build details to match the listed fitment notes.

This part cross-references Bosch (e.g., 13355, 15672) for the same application.

Quality Assurance

Delphi draws on OE supplier experience and original-equipment engineering knowledge when producing aftermarket emission control parts. That background supports consistent fitment and sensor design for the listed Toyota and Lexus applications, including Delphi ES20327.