Delphi ES20008 Oxygen Sensor - Front, Rear or Rear Right

Delphi ES20008 Heated Oxygen Sensor Overview

The Delphi ES20008 is a heated oxygen sensor designed for precise emission control in select GM and related vehicles. Engineered with a 4-wire configuration and a triangle-shaped connector, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for fast response
• Triangle-shaped connector for secure fitment
• Thread size: 18 x 1.5 mm for direct replacement
• Overall length of 380 mm for proper installation
• Includes oxygen sensor and instruction sheet
• Compatible with front, rear, and rear right positions depending on vehicle

Technical Details and Compatibility

The Delphi ES20008 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 setup supports both the sensor signal and heater circuit, ensuring reliable operation. Its triangle-shaped connector and 18 x 1.5 mm thread size provide a secure and precise fit for installation in various positions such as front, rear, or rear right, depending on the specific vehicle application.

This sensor is compatible with a range of makes and models including Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab. Notable compatible models include the Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, Hummer H2, and Saab 9-7x among others. The part number ES20008 is designed to meet OEM specifications for these vehicles, ensuring proper fit and function.

Common Applications and Problem Resolution

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

Installation Notes and Tips

When installing the Delphi ES20008 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct 18 x 1.5 mm thread size to avoid cross-threading. Verify the sensor position (front, rear, or rear right) matches your vehicle’s requirements. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Follow the included instruction sheet for wiring and connector details to ensure proper electrical connection.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. The ES20008 undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.