HomeEmission Control > SensorsDelphi ES20095 Oxygen Sensor - Front, Front Right, Rear or Rear Left
Part #: ES20095

Delphi ES20095 Oxygen Sensor - Front, Front Right, Rear or Rear Left

Rear Left
113 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, Chevrolet, Buick, GMC, Isuzu, and Honda, CTS, STS, Camaro, Rainier, SSR, Trailblazer EXT, Envoy XL, Envoy XUV, Ascender, Axiom, Rodeo, Rodeo Sport, Escalade, Astro, Avalanche 1500, Silverado 1500, Suburban 1500, Tahoe, Safari, Sierra 1500, Yukon, Yukon XL 1500, Passport, Silverado 2500, and Sierra 2500
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Delphi ES20095 Heated Oxygen Sensor Overview

The Delphi ES20095 is a heated oxygen sensor designed for precise emission control in select Buick, Cadillac, Chevrolet, GMC, Honda, and Isuzu vehicles. This sensor helps maintain optimal engine performance and fuel efficiency by accurately monitoring exhaust oxygen levels.

  • Heated sensor type for faster activation and improved accuracy
  • 4-wire design ensuring reliable electrical connections
  • Square connector shape for secure fitment
  • Thread size of 18 x 1.5 mm compatible with specified vehicle models
  • Overall length of 400 mm for proper installation depth
  • Includes oxygen sensor and instruction sheet for installation guidance
  • Position-specific fitment: front, front right, rear, rear left

Technical Details and Compatibility

The Delphi ES20095 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, reducing emissions during cold starts. Its 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size provide a secure and precise fit in the exhaust system. With an overall length of 400 mm, this sensor is designed to fit specific positions such as front, front right, rear, and rear left on compatible vehicles.

This oxygen sensor is compatible with a range of models including Buick Ascender, Cadillac CTS, Chevrolet Avalanche 1500, Camaro, Suburban 1500, Tahoe, GMC Sierra 1500 and 2500, Envoy XL, Envoy XUV, Yukon, Yukon XL 1500, Honda Passport, Isuzu Rodeo, Rodeo Sport, and Safari. The part number ES20095 ensures you receive the correct sensor for these applications.

Common Applications and Problem Resolution

  • Helps correct engine misfires caused by improper air-fuel mixture
  • Reduces increased emissions due to faulty oxygen sensor readings
  • Improves fuel economy by providing accurate exhaust gas data
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports smooth engine idling and acceleration performance

Installation Notes and Tips

Before installation, verify the sensor position (front, front right, rear, or rear left) to ensure proper fitment. Use the included instruction sheet for guidance on torque specifications and connector engagement. It is recommended to disconnect the vehicle battery before sensor replacement to avoid electrical issues. Apply anti-seize compound on the sensor threads if not pre-applied to facilitate future removal.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20095 undergoes rigorous testing to ensure reliable operation under various driving conditions. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term functionality.

BrandDelphi
Part NumberES20095
Connector ShapeSquare
Overall Length400.0
Package ContentsOxygen Sensor, Instruction Sheet
Position(s)Front, Front Right, Rear, Rear Left. For the position specific to your vehicle, refer to the Application tab.
Sensor TypeHeated
Thread Size18 x 1.5 mm
Wire Quantity4

This part fits 113 vehicles. Search below:

YearMakeModelSubmodelTransmissionPositionNotes
2011CadillacCTSAutomaticRear Left
2011CadillacCTSRear Left24in Length
2011CadillacSTSRear Left
2011ChevroletCamaroAutomaticRear Left
2010CadillacCTSAutomaticRear Left
2010CadillacCTSLuxuryRear Left24in Length
2010CadillacCTSBaseRear Left24in Length
2010CadillacSTSRear Left
2010ChevroletCamaroAutomaticRear Left
2009CadillacCTSAutomaticRear Left
2009CadillacSTSRear Left
2008CadillacCTSAutomaticRear Left
2008CadillacSTSRear Left
2004BuickRainierFront24in Length
2004ChevroletSSRFront24in Length
2004ChevroletTrailblazer EXTFront
2004GMCEnvoy XLFront
2004GMCEnvoy XUVFront24in Length
2004IsuzuAscenderFront
2004IsuzuAxiomRear24in Length
2004IsuzuAxiomFront24in Length
2004IsuzuRodeoRear24in Length
2004IsuzuRodeoFront24in Length
2004IsuzuRodeoRear
2004IsuzuRodeoFront
2003ChevroletSSRFront24in Length
2003ChevroletTrailblazer EXTFront
2003GMCEnvoy XLFront
2003IsuzuAscenderFront
2003IsuzuAscenderLimitedFront
2003IsuzuAscenderLSFront
2003IsuzuRodeoRear
2003IsuzuRodeoFront
2003IsuzuRodeo SportRear
2003IsuzuRodeo SportFront
2002CadillacEscaladeRearCanadian Built; 24in Length
2002CadillacEscaladeFrontCanadian Built; 24in Length
2002ChevroletAstroRear
2002ChevroletAstroFront Right
2002ChevroletAvalanche 1500Z71RearCanadian Built; 24in Length
2002ChevroletAvalanche 1500Z71FrontCanadian Built; 24in Length
2002ChevroletAvalanche 1500On Road EditionRearCanadian Built; 24in Length
2002ChevroletAvalanche 1500On Road EditionFrontCanadian Built; 24in Length
2002ChevroletAvalanche 1500BaseRearCanadian Built; 24in Length
2002ChevroletAvalanche 1500BaseFrontCanadian Built; 24in Length
2002ChevroletSilverado 1500Rear24in Length
2002ChevroletSilverado 1500Front24in Length
2002ChevroletSilverado 1500RearCanadian Built; 24in Length
2002ChevroletSilverado 1500FrontCanadian Built; 24in Length
2002ChevroletSuburban 1500Rear24in Length
2002ChevroletSuburban 1500Front24in Length
2002ChevroletSuburban 1500RearCanadian Built; 24in Length
2002ChevroletSuburban 1500FrontCanadian Built; 24in Length
2002ChevroletTahoeRear24in Length
2002ChevroletTahoeFront24in Length
2002ChevroletTahoeRearCanadian Built; 24in Length
2002ChevroletTahoeFrontCanadian Built; 24in Length
2002GMCSafariRear
2002GMCSafariFront Right
2002GMCSierra 1500Rear24in Length
2002GMCSierra 1500Front24in Length
2002GMCSierra 1500RearCanadian Built; 24in Length
2002GMCSierra 1500FrontCanadian Built; 24in Length
2002GMCYukonRear24in Length
2002GMCYukonFront24in Length
2002GMCYukonRearCanadian Built
2002GMCYukonFrontCanadian Built
2002GMCYukon XL 1500Rear
2002GMCYukon XL 1500Front
2002GMCYukon XL 1500RearCanadian Built
2002GMCYukon XL 1500FrontCanadian Built
2002HondaPassportRear24in Length
2002HondaPassportFront24in Length
2002IsuzuRodeoRear
2002IsuzuRodeoFront
2002IsuzuRodeo SportRear
2002IsuzuRodeo SportFront
2001ChevroletAstroRear
2001ChevroletAstroFront Right
2001ChevroletSilverado 1500RearCanadian Built; 24in Length
2001ChevroletSilverado 1500FrontCanadian Built; 24in Length
2001ChevroletSuburban 1500RearCanadian Built; 24in Length
2001ChevroletSuburban 1500FrontCanadian Built; 24in Length
2001ChevroletTahoeRearCanadian Built; 24in Length
2001ChevroletTahoeFrontCanadian Built; 24in Length
2001GMCSafariRear
2001GMCSafariFront Right
2001GMCSierra 1500RearCanadian Built; 24in Length
2001GMCSierra 1500FrontCanadian Built; 24in Length
2001GMCYukonRearCanadian Built
2001GMCYukonFrontCanadian Built
2001GMCYukon XL 1500RearCanadian Built
2001GMCYukon XL 1500FrontCanadian Built
2000ChevroletAstroRear
2000ChevroletAstroFront Right
2000ChevroletSilverado 1500RearCanadian Built; 24in Length
2000ChevroletSilverado 1500FrontCanadian Built; 24in Length
2000ChevroletSilverado 2500RearCanadian Built; 24in Length
2000ChevroletSilverado 2500FrontCanadian Built; 24in Length
2000ChevroletSuburban 1500RearCanadian Built; 24in Length
2000ChevroletSuburban 1500FrontCanadian Built; 24in Length
2000ChevroletTahoeRearCanadian Built; 24in Length
2000ChevroletTahoeFrontCanadian Built; 24in Length
2000GMCSafariRear
2000GMCSafariFront Right
2000GMCSierra 1500RearCanadian Built; 24in Length
2000GMCSierra 1500FrontCanadian Built; 24in Length
2000GMCSierra 2500RearCanadian Built; 24in Length
2000GMCSierra 2500FrontCanadian Built; 24in Length
2000GMCYukonRearCanadian Built
2000GMCYukonFrontCanadian Built
2000GMCYukon XL 1500RearCanadian Built
2000GMCYukon XL 1500FrontCanadian Built

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

112791163612561776125629431256712712601266126162021319315279156-4288156291586215896160171613321047213152721342252134575213817213819215162151721569234-4244234-4650250242695S31645S31695S41765S44075S99366914248-12567-127-08-97287-352-0OS2009OS2013OS2693REA1042REA1491SG1856SG533SG537SG721SU11389SU1366SU1378SU1522SU6141

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.