HomeEmission Control > SensorsDelphi ES20128 Oxygen Sensor - Center, Front or Rear
Part #: ES20128

Delphi ES20128 Oxygen Sensor - Center, Front or Rear

Rear
25 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Honda, Element, CR-V, Insight, and Civic
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Reliable Oxygen Sensor for Honda Civic, CR-V, Element, and Insight

The Delphi ES20128 oxygen sensor is designed to provide accurate emissions monitoring for select Honda models. This heated oxygen sensor ensures optimal engine performance and emissions control by delivering precise air-fuel mixture data to the vehicle’s engine control unit.

Key Features of Delphi ES20128 Oxygen Sensor

  • Heated sensor type for faster response times and improved efficiency
  • 4-wire design for reliable electrical connections and accurate readings
  • Square connector shape for secure and proper fitment
  • Thread size of 18 x 1.5 mm compatible with specified Honda models
  • Overall length of 320.0 mm to match OEM specifications
  • Includes oxygen sensor and instruction sheet for installation guidance
  • Compatible with front and rear positions depending on vehicle requirements

Detailed Description of the Delphi ES20128 Oxygen Sensor

The Delphi ES20128 oxygen sensor is engineered to meet the exacting standards of Honda vehicles such as the Civic, CR-V, Element, and Insight. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance under various driving conditions. The square connector shape and 18 x 1.5 mm thread size allow for straightforward installation and secure connection. With an overall length of 320.0 mm, this sensor fits precisely in the designated front or rear positions as specified by your vehicle’s requirements.

Common Issues Addressed by the Delphi ES20128 Oxygen Sensor

  • Engine performance problems caused by incorrect air-fuel mixture readings
  • Increased emissions due to faulty or slow oxygen sensor response
  • Check engine light triggered by oxygen sensor faults
  • Poor fuel economy resulting from inefficient combustion
  • Failed emissions tests related to sensor malfunction

Installation Notes and Tips

  • Verify sensor position (front or rear) according to your Honda model’s specifications
  • Use proper tools to avoid damaging the 18 x 1.5 mm threaded sensor
  • Ensure the square connector is fully seated and locked to prevent electrical issues
  • Follow the included instruction sheet for torque specifications and installation procedures
  • Allow the engine to cool before sensor replacement to avoid burns or damage

Quality Assurance and Warranty Information

Delphi manufactures the ES20128 oxygen sensor to meet OEM quality standards, ensuring reliable performance and durability. This sensor undergoes rigorous testing to comply with emissions regulations and vehicle specifications. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship. Refer to the product documentation or your supplier for exact warranty terms.

BrandDelphi
Part NumberES20128
Connector ShapeSquare
Overall Length320.0
Package ContentsOxygen Sensor, Instruction Sheet
Position(s)Front, Rear. 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 25 vehicles. Search below:

YearMakeModelSubmodelTransmissionPositionNotes
2011HondaElementRear
2010HondaElementRear
2009HondaElementRear
2008HondaElementRear
2007HondaElementRear
2006HondaCR-VRear
2006HondaElementRear
2006HondaInsightManualN/AKit Contains Center & Rear Sensors
2005HondaCivicRearwith California Emission System
2005HondaCivicCenterKit Contains Center & Rear Sensors
2005HondaCR-VRear
2005HondaElementRear
2005HondaInsightManualN/AKit Contains Center & Rear Sensors
2004HondaCivicRearwith California Emission System
2004HondaCivicCenterKit Contains Center & Rear Sensors
2004HondaElementRear
2004HondaInsightManualN/AKit Contains Center & Rear Sensors
2003HondaCivicManualRearwith California Emission System; From Chassis # 3S020169
2003HondaCivicCenterwithout California Emission System; Kit Contains Center & Rear Sensors
2003HondaCivicAutomatic CVTRearwith California Emission System; From Chassis # 3S020136
2003HondaElementRear
2003HondaInsightManualN/AKit Contains Center & Rear Sensors
2002HondaInsightManualN/AKit Contains Center & Rear Sensors
2000HondaCivicEXFront
1999HondaCivicEXFront

* 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:

06365-PHM-A2006365-PZA-A0013371154071547615575156-4362156-4376156-4414156-4415234-4352234-4366234-4394234-4395234-4613234-4733234422424240242512442924430244312463124691250-2439836531-P2P-A0136532-PPA-00436532-PZA-30636532-PZA-A0136532-PZA-L0236532-PZD-A015S41855S43485S44545S44555S56655S62305S6240800 21092OS1506OS1661OS2197REA1513REA1566REA1804SG1364SG752SG907SU6163SU6497SU6685SU6686SU7160SU7741SU7751XGN752

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