HomeEmission Control > SensorsDelphi ES20029 Oxygen Sensor - Center or Front
Part #: ES20029

Delphi ES20029 Oxygen Sensor - Center or Front

Front
16 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mitsubishi, Eagle, Dodge, and Plymouth, Galant, Summit, Mirage, Expo, Colt, and Expo LRV
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Delphi ES20029 Heated Oxygen Sensor Overview

The Delphi ES20029 is a heated oxygen sensor designed for precise emission control in select Dodge and Mitsubishi vehicles. Engineered to meet OEM specifications, this sensor helps maintain optimal engine performance and reduce harmful emissions.

  • Heated sensor type for faster warm-up and accurate readings
  • 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 325.0 mm for proper installation depth
  • Includes oxygen sensor and instruction sheet for installation guidance
  • Positioned for center, front placement in exhaust system

Technical Details and Compatibility

The Delphi ES20029 oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving fuel efficiency and emission control. 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 are designed to fit securely in the exhaust system of compatible vehicles. With an overall length of 325.0 mm, this sensor fits the center front position, but users should verify the exact position for their specific vehicle model.

This oxygen sensor is compatible with various Dodge and Mitsubishi models, including the Dodge Colt and Mitsubishi Colt, Expo, Expo LRV, Galant, and Mirage. Using the Delphi ES20029 ensures proper sensor function tailored to these vehicles’ emission systems.

Common Applications and Issues Addressed

  • Helps correct inaccurate air-fuel mixture readings
  • Reduces engine misfires caused by faulty oxygen sensors
  • Improves catalytic converter efficiency by providing accurate data
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports compliance with emission regulations for Dodge and Mitsubishi vehicles

Installation Notes and Tips

  • Verify sensor position (center, front) specific to your vehicle model before installation
  • Use proper tools to avoid damaging the 18 x 1.5 mm threaded fitting
  • Ensure the square connector is securely attached to prevent electrical issues
  • Follow the included instruction sheet for step-by-step guidance
  • Allow the engine to cool before removing the old sensor to avoid burns

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. The ES20029 part number undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Delphi products typically include coverage against manufacturing defects. Consult product documentation or your supplier for exact warranty terms.

BrandDelphi
Part NumberES20029
Connector ShapeSquare
Overall Length325.0
Package ContentsOxygen Sensor, Instruction Sheet
Position(s)Center, Front. 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 16 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
1998MitsubishiGalantFrontwithout California Emission System
1997MitsubishiGalantFrontwithout California Emission System
1996MitsubishiGalantFrontwithout California Emission System
1996MitsubishiMirageFront
1995MitsubishiExpoFWDFrontwithout California Emission System
1995MitsubishiGalantFrontwithout California Emission System
1995MitsubishiMirageFront
1994DodgeColtFrontwith California Emission System
1994MitsubishiExpoFWDFront
1994MitsubishiExpo LRVFront
1994MitsubishiGalantFront
1994MitsubishiMirageFront
1993DodgeColtFrontwith California Emission System
1993MitsubishiExpoFWDFrontwith California Emission System
1993MitsubishiExpo LRVFWDFrontwith California Emission System
1993MitsubishiMirageFrontwith California Emission System

* 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:

133831345713460138-3552131222213133021313332131339213137821314072131493213500234-4020234-4128234-46382351424052250-24020250-24228MD182691MD185334MD198529OS854OS862REA1111REA1458SG171SG398SG646SU2290SU5935

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