Delphi ES20383 Oxygen Sensor - Front or Rear
OE Quality 60-Day Returns
Delphi

Delphi ES20383 Oxygen Sensor - Front or Rear

Brand Delphi ES20383
Position Rear
Connector Shape Triangle
Overall Length 340.0
Package Contents Oxygen Sensor, Instruction Sheet
Position(s) Front, Rear. 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 Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, and Saab · 183 vehicles

Heated sensor. Helps the oxygen sensor reach operating temperature quickly.

Triangle connector. Distinct connector shape for straightforward identification.

OE heritage. Built with decades of original-equipment experience.

Cross-references Baldwin 18022, Bosch 13686 and Bosch 16132 for the same application. See all 64.

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Delphi ES20383 Oxygen Sensor Overview

Delphi ES20383 is a heated oxygen sensor built for direct replacement in a wide range of GM vehicles, including Chevrolet Equinox, GMC Terrain, Chevrolet Malibu, and Buick LaCrosse applications. It uses a 4-wire design with a triangle connector and 18 x 1.5 mm thread size for service on front or rear sensor locations, depending on the vehicle application.

Key Features

  • Heated oxygen sensor for faster operating temperature and stable signal output
  • 4-wire configuration with triangle connector shape
  • 18 x 1.5 mm thread size
  • Overall length: 340.0
  • Includes oxygen sensor and instruction sheet
  • Compatible with front and rear positions, depending on vehicle application

Detailed Description

Delphi ES20383 is an OE-style oxygen sensor backed by Delphi’s century of original equipment experience and supplier knowledge from working with major automakers. That OE heritage is reflected in the sensor’s heated design, connector layout, and fitment coverage across many GM platforms. This part number is used in applications such as 2010-2017 Chevrolet Equinox rear, 2010-2017 GMC Terrain rear, 2009-2010 Chevrolet Malibu rear, and 2008-2009 Buick LaCrosse rear. This part cross-references Bosch 13686 and DENSO Auto Parts 234-4103 for the same application.

What It Helps Address

  • Check engine light related to oxygen sensor performance
  • Incorrect air-fuel ratio readings
  • Reduced fuel economy caused by a failing sensor signal
  • Rough idle or drivability issues tied to exhaust feedback
  • Emission test failures caused by sensor degradation

Installation Notes and Tips

  • Verify the exact position before ordering; ES20383 is listed for front and rear locations depending on the vehicle.
  • Match the connector shape and wire count to the original sensor before installation.
  • Confirm thread size and sensor length during replacement to ensure proper fit.
  • Use the vehicle application details for position-specific coverage on Chevrolet Express, GMC Savana, Buick, Cadillac, Pontiac, Saturn, and Saab applications.
  • For fitment examples, this part fits 2010-2017 Chevrolet Equinox, rear; 2010-2017 GMC Terrain, rear; and 2008-2016 Chevrolet Express 2500, front.

Quality Assurance

Delphi builds this oxygen sensor using OE-focused engineering and manufacturing knowledge developed through long-term supplier relationships with leading automakers. ES20383 is designed to meet the demands of emission control service on a broad range of GM vehicles, including Chevrolet, GMC, Buick, Cadillac, Pontiac, Saturn, and Saab applications.

Related reading

This part fits 183 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeFuel TypePositionNotes
2017ChevroletEquinox———Rear—
2017GMCTerrain———Rear—
2016ChevroletEquinox———Rear—
2016ChevroletExpress 2500———Front—
2016ChevroletExpress 3500LT—FLEXFront—
2016ChevroletExpress 3500LS—FLEXFront—
2016GMCSavana 2500———Front—
2016GMCSavana 3500LT——Front—
2016GMCSavana 3500LS——Front—
2016GMCSavana 3500BaseStandard Cargo VanGASFront—
2016GMCSavana 3500BaseExtended Cargo VanGASFront—
2016GMCTerrain———Rear—
2015ChevroletCaptiva Sport———Rear—
2015ChevroletEquinox———Rear—
2015ChevroletExpress 2500———Front—
2015ChevroletExpress 3500LT——Front—
2015ChevroletExpress 3500LS——Front—
2015ChevroletExpress 3500BaseStandard Cargo Van—Front—
2015ChevroletExpress 3500BaseExtended Cargo Van—Front—
2015ChevroletExpress 3500———Front—
2015GMCSavana 2500———Front—
2015GMCSavana 3500LT——Front—
2015GMCSavana 3500LS——Front—
2015GMCSavana 3500BaseStandard Cargo Van—Front—
2015GMCSavana 3500BaseExtended Cargo Van—Front—
2015GMCSavana 3500———Front—
2015GMCTerrain———Rear—
2014ChevroletCaptiva Sport———Rear—
2014ChevroletEquinox———Rear—
2014ChevroletExpress 1500———Front—
2014ChevroletExpress 2500———Front—
2014ChevroletExpress 3500LT——Front—
2014ChevroletExpress 3500LS——Front—
2014ChevroletExpress 3500BaseStandard Cargo Van—Front—
2014ChevroletExpress 3500BaseExtended Cargo Van—Front—
2014ChevroletExpress 3500———Front—
2014GMCSavana 1500———Front—
2014GMCSavana 2500———Front—
2014GMCSavana 3500LT——Front—
2014GMCSavana 3500LS——Front—
2014GMCSavana 3500BaseStandard Cargo Van—Front—
2014GMCSavana 3500BaseExtended Cargo Van—Front—
2014GMCSavana 3500———Front—
2014GMCTerrain———Rear—
2013ChevroletCaptiva Sport———Rear—
2013ChevroletEquinox———Rear—
2013ChevroletExpress 1500———Front—
2013ChevroletExpress 2500———Front—
2013ChevroletExpress 3500LT——Front—
2013ChevroletExpress 3500LS——Front—
2013ChevroletExpress 3500BaseStandard Cargo Van—Front—
2013ChevroletExpress 3500BaseExtended Cargo Van—Front—
2013ChevroletExpress 3500———Front—
2013GMCSavana 1500———Front—
2013GMCSavana 2500———Front—
2013GMCSavana 3500LT——Front—
2013GMCSavana 3500LS——Front—
2013GMCSavana 3500BaseStandard Cargo Van—Front—
2013GMCSavana 3500BaseExtended Cargo Van—Front—
2013GMCSavana 3500———Front—
2013GMCTerrain———Rear—
2012ChevroletCaptiva Sport———Rear—
2012ChevroletEquinox———Rear—
2012ChevroletExpress 1500———Front—
2012ChevroletExpress 2500———Front—
2012ChevroletExpress 3500LT——Front—
2012ChevroletExpress 3500LS——Front—
2012ChevroletExpress 3500BaseStandard Cargo Van—Front—
2012ChevroletExpress 3500BaseExtended Cargo Van—Front—
2012ChevroletExpress 3500———Front—
2012GMCSavana 1500———Front—
2012GMCSavana 2500———Front—
2012GMCSavana 3500LT——Front—
2012GMCSavana 3500LS——Front—
2012GMCSavana 3500BaseStandard Cargo Van—Front—
2012GMCSavana 3500BaseExtended Cargo Van—Front—
2012GMCSavana 3500———Front—
2012GMCTerrain———Rear—
2011BuickLucerne———Rear—
2011CadillacCTS———Front—
2011ChevroletCamaro———Front—
2011ChevroletEquinox———Rear—
2011ChevroletExpress 1500———Front—
2011ChevroletExpress 2500———Front—
2011ChevroletExpress 3500LT——Front—
2011ChevroletExpress 3500LS——Front—
2011ChevroletExpress 3500BaseStandard Cargo Van—Front—
2011ChevroletExpress 3500BaseExtended Cargo Van—Front—
2011ChevroletExpress 3500———Front—
2011GMCSavana 1500———Front—
2011GMCSavana 2500———Front—
2011GMCSavana 3500LT——Front—
2011GMCSavana 3500LS——Front—
2011GMCSavana 3500BaseStandard Cargo Van—Front—
2011GMCSavana 3500BaseExtended Cargo Van—Front—
2011GMCSavana 3500———Front—
2011GMCTerrain———Rear—
2010BuickLucerne———Rear—
2010CadillacCTSLuxury——Front—
2010CadillacCTSBase——Front—
2010ChevroletCamaro———Front—
2010ChevroletEquinox———Rear—
2010ChevroletExpress 1500———Front—
2010ChevroletExpress 2500———Front—
2010ChevroletExpress 3500LT——Front—
2010ChevroletExpress 3500LS——Front—
2010ChevroletExpress 3500BaseStandard Cargo Van—Front—
2010ChevroletExpress 3500BaseExtended Cargo Van—Front—
2010ChevroletExpress 3500———Front—
2010ChevroletMalibu——ELECTRIC/GASRear—
2010GMCSavana 1500———Front—
2010GMCSavana 2500———Front—
2010GMCSavana 3500LT——Front—
2010GMCSavana 3500LS——Front—
2010GMCSavana 3500BaseStandard Cargo Van—Front—
2010GMCSavana 3500BaseExtended Cargo Van—Front—
2010GMCSavana 3500———Front—
2010GMCTerrain———Rear—
2010PontiacG6———Rear—
2010SaturnVue———Rear—
2010SaturnVueXE——Rear—
2009BuickLaCrosse———Rear—
2009BuickLucerne———Rear—
2009ChevroletExpress 1500———Front—
2009ChevroletExpress 2500———Front—
2009ChevroletExpress 3500LT——Front—
2009ChevroletExpress 3500LS——Front—
2009ChevroletExpress 3500BaseStandard Cargo Van—Front—
2009ChevroletExpress 3500BaseExtended Cargo Van—Front—
2009ChevroletExpress 3500———Front—
2009ChevroletMalibu———Rear—
2009GMCSavana 1500———Front—
2009GMCSavana 2500———Front—
2009GMCSavana 3500LT——Front—
2009GMCSavana 3500LS——Front—
2009GMCSavana 3500BaseStandard Cargo Van—Front—
2009GMCSavana 3500BaseExtended Cargo Van—Front—
2009GMCSavana 3500———Front—
2009PontiacG6———Rear—
2009SaturnAura——ELECTRIC/GASRear—
2009SaturnVue———Rear—
2008BuickEnclave———Rear—
2008BuickLaCrosse———Rear—
2008ChevroletExpress 1500———Front—
2008ChevroletExpress 2500———Front—
2008ChevroletExpress 3500LT——Front—
2008ChevroletExpress 3500LS——Front—
2008ChevroletExpress 3500BaseStandard Cargo Van—Front—
2008ChevroletExpress 3500BaseExtended Cargo Van—Front—
2008ChevroletExpress 3500———Front—
2008ChevroletMalibu———Rear2nd Design
2008GMCAcadia———Rear—
2008GMCSavana 1500———Front—
2008GMCSavana 2500———Front—
2008GMCSavana 3500LT——Front—
2008GMCSavana 3500LS——Front—
2008GMCSavana 3500BaseStandard Cargo Van—Front—
2008GMCSavana 3500BaseExtended Cargo Van—Front—
2008GMCSavana 3500———Front—
2008PontiacG6———Rear1st Design; 2nd Design
2008PontiacGrand Prix———Rear—
2008SaturnAura———Rear1st Design; 2nd Design
2008SaturnOutlook———Rear—
2008SaturnVue———Rear—
2007BuickRainier———Rear—
2007ChevroletExpress 1500———Frontwith California Emission System
2007ChevroletExpress 1500———Front—
2007ChevroletTrailblazer———Rear—
2007GMCAcadia———Rear—
2007GMCEnvoy———Rear—
2007GMCSavana 1500———Frontwith California Emission System
2007GMCSavana 1500———Front—
2007Saab9-7x———Rear—
2007SaturnAura———Rear1st Design; 2nd Design
2007SaturnOutlook———Rear—
2000ChevroletC2500———Front—
2000ChevroletC3500———Front—
2000ChevroletK2500———Front—
2000ChevroletK3500———Front—
2000GMCC2500———Front—
2000GMCC3500———Front—
2000GMCK2500———Front—
2000GMCK3500———Front—
Directly replaces or cross-references 64 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Baldwin — 18022Bosch — 13686Bosch — 16132Carlson — 15241Carlson — 15254DENSO Auto Parts — 234-4103DENSO Auto Parts — 234-4250DENSO Auto Parts — 234-4251DENSO Auto Parts — 234-4291DENSO Auto Parts — 234-4294DENSO Auto Parts — 234-4336DENSO Auto Parts — 234-4348DENSO Auto Parts — 234-4441DENSO Auto Parts — 234-4530Febi-Bilstein — 21560Gates — 18023Gates — 21058Gates — 21064Gates — 21513Gates — 21574NTK — 21068Timken — 151135S31745S81805S99315S99335S101675S1017112 60 4538138-63821392121394121336322133868213391321342532134321213441321345742134643213476821347791256334512565414125979471259920412616201126166721261790712618010126180121262264312639692192098172502424825024708OS2010SG280SU1377SU9646SU11384SU11386SU11620SU11624