Delphi ES20419 Oxygen Sensor - Rear

Delphi ES20419 Heated Oxygen Sensor Overview

The Delphi ES20419 oxygen sensor is designed for precise emission control in Suzuki SX4 vehicles. This heated sensor ensures accurate air-fuel mixture readings, helping maintain optimal engine performance and emissions compliance.

• Heated oxygen sensor for faster response times
• 4-wire design for reliable signal transmission
• Square connector shape for secure fitment
• Thread size of 18 x 1.5 mm for direct replacement
• Overall length of 260.0 mm for proper installation
• Positioned for rear exhaust monitoring
• Includes oxygen sensor and instruction sheet

Detailed Product Description

The Delphi ES20419 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, improving the accuracy of oxygen level readings in the exhaust gases. With a 4-wire configuration, this sensor provides both the heater circuit and signal wires, ensuring consistent performance and durability. The square connector shape is designed to match the original equipment harness, simplifying installation and reducing the risk of connection issues. The sensor’s thread size of 18 x 1.5 mm and overall length of 260.0 mm make it a direct fit for the rear position on Suzuki SX4 models, ensuring proper placement for accurate emissions monitoring.

Applications and Common Issues Addressed

• Helps resolve poor fuel economy caused by incorrect air-fuel mixture readings
• Reduces engine performance issues related to faulty oxygen sensors
• Assists in passing emissions tests by maintaining proper exhaust gas monitoring
• Prevents check engine light triggers related to oxygen sensor faults
• Supports smooth engine idling and acceleration by providing accurate data to the ECU

Installation Notes and Tips

When installing the Delphi ES20419 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size to avoid damaging the sensor or threads. Verify the square connector aligns properly with the vehicle’s wiring harness before securing. It is recommended to check for exhaust leaks around the sensor mounting area to ensure accurate readings. Follow the included instruction sheet for specific torque specifications and installation procedures.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for fit, form, and function. The ES20419 part number undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details are not provided here, Delphi products typically come with a limited warranty covering defects in materials and workmanship.