Delphi ES20104 Oxygen Sensor - Front, Front Left or Front Right

Delphi ES20104 Heated Oxygen Sensor Overview

The Delphi ES20104 is a heated oxygen sensor designed for precise emission control in select Ford, Lincoln, Mazda, and Mercury vehicles. This sensor features a 4-wire configuration and a round connector shape, ensuring reliable fitment and performance for front position applications.

• Heated oxygen sensor with 4 wires for accurate readings
• Round connector shape for secure electrical connection
• Thread size of 18 x 1.5 mm for proper installation
• Overall length of 400 mm to fit front, front left, or front right positions
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES20104 oxygen sensor is engineered to meet the emission control requirements of various Ford, Lincoln, Mazda, and Mercury models. Its heated sensor type allows for faster activation and improved fuel mixture monitoring. The 4-wire design supports both sensor heating and signal transmission, enhancing sensor responsiveness. The round connector shape and 18 x 1.5 mm thread size ensure compatibility with factory wiring harnesses and mounting points. This sensor is suitable for front position installation, including front left and front right locations, depending on vehicle specifications.

Compatible Vehicles

This oxygen sensor is compatible with a range of vehicles including Ford Edge, Escape, F-250 Super Duty, F-350 Super Duty, Fusion, E-150 Club Wagon, E-250, E-350 Super Duty, Lincoln MKX, MKZ, Continental, Town Car, and Mercury Milan, Mariner, Cougar, Sable, Grand Marquis, Tribute, Zephyr, Taurus, Taurus X, and Crown Victoria models.

Common Applications and Problem Resolution

• Helps resolve rough idling caused by incorrect air-fuel mixture readings
• Addresses increased emissions and failed emissions tests
• Improves fuel efficiency by providing accurate oxygen level data
• Reduces engine hesitation and stalling issues
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Before installation, verify the sensor position (front, front left, or front right) specific to your vehicle model. Use the included instruction sheet for proper torque specifications and wiring connections. Ensure the engine is cool before removing the old sensor to avoid injury. Applying anti-seize compound to the threads can facilitate future removal. Confirm electrical connector compatibility with the round connector shape to avoid connection issues.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20104 part number undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product quality.