Delphi ES20010 Oxygen Sensor - Rear

Overview of Delphi ES20010 Oxygen Sensor for Buick Regal

The Delphi ES20010 is a heated oxygen sensor designed specifically for the rear position on Buick Regal models. This sensor plays a critical role in monitoring exhaust gases to optimize engine performance and emissions control.

• Heated sensor type for faster response times
• Four-wire design ensuring accurate signal transmission
• Flat connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with Buick Regal exhaust systems
• Overall length of 310.0 mm for precise installation
• Includes oxygen sensor and instruction sheet for installation guidance

Detailed Product Description

The Delphi ES20010 oxygen sensor is engineered to meet the specific requirements of the Buick Regal's emission control system. Featuring a heated sensor element, it quickly reaches operating temperature to provide reliable oxygen level readings. The four-wire configuration supports both the sensor signal and heater circuit, improving efficiency and durability. Its flat connector shape ensures a secure electrical connection, reducing the risk of signal loss or corrosion. The 18 x 1.5 mm thread size and 310 mm overall length are designed for direct replacement in the rear exhaust position, maintaining factory specifications and performance.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate feedback to the engine control unit
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring proper sensor operation
• Addresses rough idling or poor engine performance caused by faulty sensors

Installation Notes and Tips

• Ensure the vehicle is cool before installation to avoid burns
• Use the included instruction sheet for proper wiring and torque specifications
• Verify the sensor’s rear position location on the Buick Regal before removal
• Apply anti-seize compound on the threads if recommended to ease future removal
• Check connector compatibility to ensure a secure fit with the flat connector design

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20010 part number 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 support long-term use in Buick Regal vehicles.