Delphi ES20089 Oxygen Sensor - Rear, Rear Left or Rear Right

Brand Delphi ES20089
Position Rear
Connector Shape Square
Overall Length 450.0
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 Dodge and Jeep · 39 vehicles

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

Square connector. Simplifies installation with a straightforward electrical connection.

OE heritage. Built with 100 years of original-equipment experience.

Cross-references Bosch 13672, Bosch 13687 and Bosch 13718 for the same application. See all 34.

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Delphi ES20089 Rear Oxygen Sensor

The Delphi ES20089 is a heated oxygen sensor built for rear exhaust monitoring on select Dodge and Jeep applications. It combines OE-based engineering with the correct connector, thread size, and wire configuration for direct replacement service.

  • Heated oxygen sensor for rear exhaust positions
  • 4-wire design with square connector shape
  • 18 x 1.5 mm thread size
  • Overall length: 450.0
  • Package contents: oxygen sensor and instruction sheet
  • Delphi OE heritage informed by 100 years of supplier experience

Vehicle Fitment and Application

Compatible with rear oxygen sensor applications on 2001-2003 Dodge Ram 1500, 2001-2003 Dodge Ram 1500 Van, 2001-2003 Dodge Ram 2500 Van, 2001-2003 Dodge Ram 3500 Van, 2001-2003 Jeep Grand Cherokee, 2002-2003 Jeep Liberty, and 2001-2003 Jeep Wrangler. This part also fits 2001-2002 Dodge Ram 2500, 2001-2002 Dodge Ram 3500, 2002-2003 Dodge Ram 2500, 2002-2003 Dodge Ram 3500, and 2002 Dodge Ram 1500 rear left or rear right applications, depending on vehicle configuration. Delphi ES20089 is a direct-fit option for rear oxygen sensor replacement on Dodge Ram and Jeep models listed in the fitment data.

This part cross-references Bosch 13672 and DENSO Auto Parts 234-4029 for the same application.

What This Sensor Helps Address

  • Check engine light related to rear oxygen sensor performance
  • Incorrect exhaust feedback from a worn or slow-responding sensor
  • Fuel trim issues caused by inaccurate downstream sensor readings
  • Emissions test failures tied to oxygen sensor faults
  • Driveability concerns linked to degraded exhaust monitoring

Installation Notes and Tips

Verify the exact rear position for your vehicle before ordering, since listed applications include rear, rear left, and rear right locations. Match the 4-wire square connector and 18 x 1.5 mm thread size to the original sensor, and confirm the vehicle’s emission configuration where noted in the fitment data. Follow the included instruction sheet and inspect the harness routing before installation.

Quality Assurance

Delphi builds this oxygen sensor using OE heritage and supplier knowledge developed over a century of original-equipment experience. That background is reflected in the sensor’s fit, connector style, and application-specific design for the listed Dodge and Jeep vehicles.

This part fits 39 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionPositionNotes
2003DodgeRam 1500——Rear—
2003DodgeRam 1500—ManualRear—
2003DodgeRam 1500 Van——Rear—
2003DodgeRam 2500 Van——Rear—
2003DodgeRam 3500 Van——Rear—
2003JeepGrand Cherokee——RearCylinders 1 through 3
2003JeepLiberty——Rear Right—
2003JeepWrangler——RearCylinders 1 through 3
2002DodgeRam 1500——Rear Rightwithout California Emission System
2002DodgeRam 1500——Rear Leftwithout California Emission System
2002DodgeRam 1500——Rear Right—
2002DodgeRam 1500——Rear Left—
2002DodgeRam 1500 Van——Rearwithout California Emission System
2002DodgeRam 1500 Van——Rear—
2002DodgeRam 2500——Rear—
2002DodgeRam 2500—ManualRear—
2002DodgeRam 2500—AutomaticRearwithout California Emission System
2002DodgeRam 2500 Van——Rearwithout California Emission System
2002DodgeRam 2500 Van——Rear—
2002DodgeRam 3500——Rear—
2002DodgeRam 3500—ManualRear—
2002DodgeRam 3500—AutomaticRearwithout California Emission System
2002DodgeRam 3500 Van——Rearwithout California Emission System
2002DodgeRam 3500 Van——Rear—
2002JeepGrand Cherokee——RearCylinders 1 through 3
2002JeepLibertySport—Rear Right—
2002JeepLibertyLimited—Rear Right—
2002JeepWrangler——RearCylinders 1 through 3
2001DodgeRam 1500——RearFrom 02/21/2000
2001DodgeRam 1500 Van——Rearwithout California Emission System
2001DodgeRam 1500 Van——Rear—
2001DodgeRam 2500——RearFrom 02/21/2000
2001DodgeRam 2500 Van——Rearwithout California Emission System
2001DodgeRam 2500 Van——Rear—
2001DodgeRam 3500——RearFrom 02/21/2000
2001DodgeRam 3500 Van——Rearwithout California Emission System
2001DodgeRam 3500 Van——Rear—
2001JeepGrand Cherokee——RearCylinders 1 through 3
2001JeepWrangler——RearCylinders 1 through 3
Directly replaces or cross-references 34 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 13672Bosch — 13687Bosch — 13718DENSO Auto Parts — 234-4029DENSO Auto Parts — 234-4229Dorman - HELP — 13665Febi-Bilstein — 23142Gates — 23140138-641250-242555603 0111AA5604 1845AA5604 1845AB5604 1847AA5604 1953AA21313722131374OS1471OS1482OS1491OS2048REA1110REA1489REA1495REA1503SG604SG718SG729SG738SG1852SG1853SU3261SU3282SU3296