Delphi ES20326 Oxygen Sensor - Rear, Rear Left or Rear Right
OE Quality 60-Day Returns
Delphi

Delphi ES20326 Oxygen Sensor - Rear, Rear Left or Rear Right

Brand Delphi ES20326
Position Rear Left
Connector Shape Square
Overall Length 235.0
Package Contents Oxygen Sensor, Instruction Sheet
Position(s) Rear, Rear Left, Rear Right. For the position specific to your vehicle, refer to the Application tab.
Sensor Type Heated
Thread Size 18 x 1.5 mm
Wire Quantity 4
Fits Toyota and Lexus · 127 vehicles

Heated sensor. Provides faster operation for more responsive emissions monitoring.

Square connector. Simplifies installation with a straightforward electrical connection.

OE heritage. Built with 100 years of OE experience and supplier knowledge.

Cross-references Bosch 13355, Bosch 15672 and Carlson 15421 for the same application. See all 57.

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Delphi ES20326 Oxygen Sensor Overview

Delphi ES20326 is a heated oxygen sensor built for rear-position applications on select Toyota and Lexus vehicles. It uses a 4-wire design with a square connector and 18 x 1.5 mm thread size for direct-fit replacement where specified.

Backed by Delphi’s OE heritage and decades of supplier experience, this oxygen sensor reflects the same engineering focus used in original equipment development. It is a practical choice for rear left, rear right, and rear sensor locations on covered Toyota Tundra, Toyota Camry, Lexus ES350, and related applications.

Key Features

  • Heated oxygen sensor for rear exhaust monitoring
  • 4-wire configuration for the listed applications
  • Square connector shape
  • 18 x 1.5 mm thread size
  • Overall length: 235.0
  • Package includes oxygen sensor and instruction sheet
  • Delphi part number ES20326

Detailed Description

The Delphi ES20326 oxygen sensor is engineered for rear exhaust positions where accurate feedback from the exhaust stream is needed to support engine management and emissions control. It is listed for rear left, rear right, and rear applications depending on vehicle configuration, including Toyota Tundra, Toyota Camry, Toyota Sequoia, Toyota 4Runner, Lexus ES350, and other covered models. For exact placement, refer to the application tab and match the position to your vehicle.

This part cross-references Bosch 13355 and DENSO Auto Parts 234-4260 for the same application. The ES20326 also aligns with multiple OE and aftermarket reference numbers used across Toyota and Lexus rear oxygen sensor applications.

What It Helps Address

  • Check engine light related to rear oxygen sensor performance
  • Incorrect exhaust oxygen readings at the rear sensor location
  • Emissions system faults on Toyota and Lexus applications
  • Rough fuel control caused by a failing heated sensor
  • Sensor response issues after extended mileage or exhaust exposure

Installation Notes and Tips

  • Confirm the exact position before ordering: rear, rear left, or rear right.
  • Match the connector shape, wire count, and thread size to the original sensor.
  • Review the notes for model-year exceptions such as To 08/2015, To 08/2014, or To 09/2014.
  • Inspect the harness routing and connector condition before installation.
  • Use the vehicle application tab to verify fitment for your specific Toyota or Lexus model.

Quality Assurance

Delphi builds aftermarket parts using OE experience developed through long-term supplier relationships with major automakers. That OE heritage is reflected in the design and application coverage of the ES20326 oxygen sensor.

Related reading

This part fits 127 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeTransmissionPositionNotes
2016ToyotaTundra———Rear LeftTo 08/2015
2015LexusES350———Rear LeftTo 08/2014
2015ToyotaAvalon———Rear LeftTo 10/2014
2015ToyotaCamry———Rear LeftTo 09/2014
2015ToyotaSequoia———Rear Left—
2015ToyotaTundra———Rear Left—
2014LexusES350———Rear Left—
2014ToyotaAvalonXLE——Rear Left—
2014ToyotaAvalonLimited——Rear Left—
2014ToyotaCamry———Rear Left—
2014ToyotaSequoia———Rear LeftTo 08/2013
2014ToyotaSequoia———Rear Left—
2014ToyotaTundra———Rear LeftTo 08/2013
2014ToyotaTundra———Rear Left—
2013LexusES350———Rear Left—
2013ToyotaAvalonXLE——Rear Left—
2013ToyotaAvalonLimited——Rear Left—
2013ToyotaCamry———Rear Left—
2013ToyotaSequoia———Rear Left—
2013ToyotaTundra———Rear Left—
2012LexusES350———Rear Left—
2012Toyota4Runner———Rear Left—
2012ToyotaAvalon———Rear Left—
2012ToyotaCamry———Rear Left—
2012ToyotaFJ Cruiser———Rear Left—
2012ToyotaRAV4———Rear Left—
2012ToyotaSequoia———Rear Left—
2012ToyotaTundra———Rear Left—
2011LexusES350———Rear Left—
2011Toyota4Runner———Rear Left—
2011ToyotaAvalon———Rear Left—
2011ToyotaCamry———Rear Left—
2011ToyotaFJ Cruiser———Rear Left—
2011ToyotaRAV4———Rear Left—
2011ToyotaSequoia———Rear Left—
2011ToyotaTacoma———Rear Left—
2011ToyotaTacomaPre Runner——Rear—
2011ToyotaTacomaBaseRWD—Rear—
2011ToyotaTundra———Rear Left—
2010LexusES350———Rear Left—
2010Toyota4Runner———Rear Left—
2010ToyotaAvalon———Rear Left—
2010ToyotaCamry———Rear Left—
2010ToyotaFJ Cruiser———Rear Left—
2010ToyotaRAV4———Rear Left—
2010ToyotaSequoia———Rear Left—
2010ToyotaTacoma———Rear Left—
2010ToyotaTacomaPre Runner——Rear—
2010ToyotaTacomaBaseRWD—Rear—
2010ToyotaTundra———Rear Left—
2009LexusES350———Rear Left—
2009LexusGX470———Rear—
2009Toyota4Runner———Rear—
2009Toyota4Runner———Rear Left—
2009ToyotaAvalon———Rear Left—
2009ToyotaCamry———Rear Left—
2009ToyotaFJ Cruiser———Rear Left—
2009ToyotaRAV4———Rear Left—
2009ToyotaSequoia———Rear Left—
2009ToyotaTacoma———Rear Left—
2009ToyotaTacomaPre Runner——Rear—
2009ToyotaTacomaBaseRWD—Rear—
2009ToyotaTundra———Rear Left—
2008LexusES350———Rear Left—
2008LexusGX470———Rear—
2008Toyota4Runner———Rear—
2008Toyota4Runner———Rear Left—
2008ToyotaAvalon———Rear Left—
2008ToyotaCamry———Rear Left—
2008ToyotaFJ Cruiser———Rear Left—
2008ToyotaRAV4———Rear Left—
2008ToyotaSequoia———Rear Left—
2008ToyotaSolara———Rear Left—
2008ToyotaTacoma———Rear Left—
2008ToyotaTacomaPre Runner——Rear—
2008ToyotaTacomaBaseRWD—Rear—
2008ToyotaTundra———Rear Left—
2007LexusES350———Rear Left—
2007LexusGX470———Rear—
2007LexusLX470———Rear Right—
2007Toyota4Runner———Rear—
2007Toyota4Runner———Rear Left—
2007ToyotaCamry———Rear Left—
2007ToyotaFJ Cruiser———Rear Left—
2007ToyotaLand Cruiser———Rear Right—
2007ToyotaRAV4———Rear Left—
2007ToyotaSolara———Rear Left—
2007ToyotaTacoma———Rear Left—
2007ToyotaTacomaPre Runner——Rear—
2007ToyotaTacomaBaseRWD—Rear—
2007ToyotaTundra———Rear Left—
2006LexusES330———Rear Right—
2006LexusGX470———Rear—
2006LexusLX470———Rear Right—
2006Toyota4Runner———Rear—
2006Toyota4Runner———Rear Left—
2006ToyotaCamry———Rear Left—
2006ToyotaLand Cruiser———Rear Right—
2006ToyotaRAV4———Rear Left—
2006ToyotaSolara———Rear Left—
2006ToyotaTacomaPre Runner——Rear—
2006ToyotaTacomaBaseRWD—Rear—
2005LexusES330———Rear Right—
2005LexusGX470———Rear—
2005LexusLX470———Rear RightFrom 05/2005
2005Toyota4Runner———Rear Right—
2005Toyota4Runner———Rear Left—
2005ToyotaCamry———Rear Left—
2005ToyotaLand Cruiser———Rear RightTo 05/2005
2005ToyotaSolara———Rear Left—
2005ToyotaTacoma—RWD—Rear—
2004LexusES330———Rear Right—
2004LexusGX470———Rear Right—
2004Toyota4Runner———Rear Right—
2004Toyota4Runner———Rear Left—
2004ToyotaCamry———Rear Left—
2004ToyotaSolara———Rear Left—
2003LexusES300———Rear Right—
2003LexusGX470———Rear Right—
2003Toyota4Runner———Rear Right—
2003ToyotaCamry———Rear Left—
2002LexusES300———Rear Right—
2002Toyota4Runner———Rear—
2002ToyotaCamry———Rear LeftUSA Built; Japan Built
2001Toyota4Runner———Rear—
2000Toyota4Runner—RWD—Rearwith California Emission System
2000Toyota4Runner—4WDManualRearwith California Emission System
Directly replaces or cross-references 57 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 13355Bosch — 15672Carlson — 15421Carlson — 15423DENSO Auto Parts — 234-4260DENSO Auto Parts — 234-4261DENSO Auto Parts — 234-4622Dixie Electric Ltd — 15103Dixie Electric Ltd — 15112Dorman - HELP — 13616Dorman - HELP — 13722Gates — 24594Quality-Built — 15106Quality-Built — 15488SKF — 15649Walker Products — 250-24360Walker Products — 155675S42335S42395S44235S57145S5721138-88689465-0C18089465-0R02089465-0427089465-0432089465-0434089465-0606089465-0614089465-0625089465-3325089465-3338089465-3557089465-3558089465-3567089465-3569089465-4215089465-6025089465-6030089465-603202131435OS1541OS1558OS1574OS2188REA1030SG787SG804SG820SG1355SG1825SU6239SU6250SU6590SU7209SU7216