Delphi ES20357 Oxygen Sensor

Delphi ES20357 Heated Oxygen Sensor Overview

The Delphi ES20357 is a heated oxygen sensor designed for precise emission control in select Hyundai and Kia vehicles. Engineered with a 4-wire configuration and a flat connector shape, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for fast response
• Flat connector shape for secure and easy installation
• Thread size of 18 x 1.5 mm compatible with specified models
• Overall length of 330.0 mm for proper fitment
• Includes oxygen sensor and instruction sheet
• Compatible with front and rear positions on multiple Hyundai and Kia models

Technical Details and Compatibility

The Delphi ES20357 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving emission control efficiency. Its 4-wire setup supports both sensor heating and signal transmission, enhancing durability and accuracy. The flat connector shape simplifies wiring connections, reducing installation time. With a thread size of 18 x 1.5 mm and an overall length of 330.0 mm, this sensor fits front left, front right, rear left, rear right, and rear positions on various Hyundai and Kia vehicles including the Amanti, Azera, Borrego, Entourage, Genesis, Genesis Coupe, Santa Fe, Sedona, Sonata, Sorento, and Veracruz.

Applications and Problem Resolution

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensors
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate sensor data
• Addresses check engine light issues related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20357 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct 18 x 1.5 mm thread size socket for removal and installation. Verify the sensor position matches the vehicle’s specified location (front or rear). Follow the included instruction sheet for wiring connections and torque specifications. Avoid damaging the sensor tip during installation to maintain sensor accuracy.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for reliability and performance. The ES20357 undergoes rigorous testing to ensure durability under various operating conditions. This part comes with a limited warranty covering defects in materials and workmanship, providing confidence in its long-term functionality.