Delphi ES20103 Oxygen Sensor - Front, Rear, Rear Left or Rear Right

Delphi ES20103 Heated Oxygen Sensor Overview

The Delphi ES20103 is a heated oxygen sensor designed for precise emission control in select Lexus, Pontiac, Scion, and Toyota vehicles. Engineered with a 4-wire configuration and a square connector shape, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for reliable operation
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 500 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment: front, rear, rear left, and rear right

Technical Details and Compatibility

The Delphi ES20103 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. Its 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 500 mm, this sensor is designed to fit the front and rear positions, including rear left and rear right, depending on the vehicle application.

This oxygen sensor is compatible with a range of Lexus, Pontiac, Scion, and Toyota models, including the Lexus ES300, GS300, GS460; Pontiac Vibe; Scion xA, xB, xD; and Toyota Camry, Echo, Matrix, Prius, Supra, and Yaris. The part number ES20103 ensures you receive the correct sensor for these specific vehicles.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers caused by sensor failure
• Improves fuel economy by optimizing engine management

Installation Notes and Tips

• Ensure the sensor is installed in the correct position (front, rear, rear left, or rear right) as specified for your vehicle
• Use the included instruction sheet for proper torque specifications and wiring connections
• Verify thread size compatibility (18 x 1.5 mm) before installation
• Disconnect the battery before installation to prevent electrical issues
• Inspect the connector and wiring harness for damage prior to installation

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20103 part undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.