HomeEmission Control > SensorsDelphi ES20392 Oxygen Sensor - Rear
Part #: ES20392

Delphi ES20392 Oxygen Sensor - Rear

Rear
5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus, IS300
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Overview of Delphi Oxygen Sensor ES20392 for Lexus IS300

The Delphi Oxygen Sensor ES20392 is designed specifically for the rear position on Lexus IS300 models. This sensor plays a critical role in monitoring exhaust gases to optimize engine performance and reduce emissions.

  • Compatible with Lexus IS300 rear oxygen sensor replacement
  • Includes oxygen sensor and instruction sheet for installation
  • Delphi part number ES20392 ensures precise fit and function
  • Monitors exhaust oxygen levels for accurate fuel mixture adjustments
  • Durable construction for reliable emission control

Detailed Product Description

The Delphi ES20392 oxygen sensor is engineered to meet the specific requirements of the Lexus IS300’s emission control system. Positioned at the rear, this sensor measures the oxygen content in the exhaust stream after the catalytic converter. By providing accurate data to the engine control unit (ECU), it helps maintain optimal combustion efficiency and reduces harmful emissions. The package includes the oxygen sensor itself along with an instruction sheet to assist with proper installation. Using the correct part number ES20392 ensures compatibility and performance consistency with your Lexus IS300.

Common Applications and Issues Addressed

  • Replacement for faulty or worn rear oxygen sensors on Lexus IS300
  • Helps resolve engine performance issues related to incorrect air-fuel mixture
  • Reduces increased emissions caused by sensor failure
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves fuel economy by enabling accurate ECU adjustments

Installation Notes and Tips

  • Ensure the vehicle is cool before beginning installation to avoid burns
  • Use the included instruction sheet for step-by-step guidance
  • Verify the sensor position is rear as specified for ES20392
  • Use proper tools to avoid damaging the sensor or wiring
  • After installation, clear any diagnostic trouble codes and test drive to confirm proper operation

Quality Assurance and Warranty Information

Delphi manufactures the ES20392 oxygen sensor to meet OEM standards for fit, form, and function. This part undergoes rigorous testing to ensure durability and reliable performance in emission control applications. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.

BrandDelphi
Part NumberES20392
Package ContentsOxygen Sensor, Instruction Sheet
Position(s)Rear

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2005LexusIS300RearCylinders 1 through 3
2004LexusIS300RearCylinders 1 through 3
2003LexusIS300RearCylinders 1 through 3
2002LexusIS300RearCylinders 1 through 3
2001LexusIS300RearCylinders 1 through 3

* 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:

1364313732138-631156-41532131394234-401524565250242265S35685S42495S927969139089465-5311089465-53200OS1774OS1781SG1020SG1027SU10741SU5666SU6277

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