Delphi ES20108 Oxygen Sensor - Rear

Delphi ES20108 Oxygen Sensor Overview

The Delphi ES20108 is a heated oxygen sensor designed specifically for the rear position on Cadillac Catera models. This sensor plays a critical role in monitoring exhaust gases to optimize engine performance and reduce emissions.

• Heated sensor type for faster response times
• 4-wire design ensuring accurate signal transmission
• Flat connector shape for secure and reliable connection
• Thread size of 18 x 1.5 mm for proper fitment
• Overall length of 375.0 mm to match factory specifications
• Includes oxygen sensor and instruction sheet

Detailed Product Description

The Delphi ES20108 oxygen sensor is engineered to meet the specific requirements of the Cadillac Catera. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings. The 4-wire configuration supports both the sensor signal and heater circuit, improving efficiency and durability. Its flat connector shape ensures a secure fit with the vehicle’s wiring harness, while the 18 x 1.5 mm thread size guarantees proper installation in the rear exhaust position. With an overall length of 375.0 mm, this sensor aligns with OEM dimensions for seamless replacement.

Common Applications and Issues Addressed

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

Installation Notes and Tips

• Ensure the vehicle is cooled down before sensor replacement to avoid burns
• Use the correct 18 x 1.5 mm thread size to avoid cross-threading
• Verify the flat connector shape matches the vehicle harness for proper connection
• Follow the included instruction sheet for torque specifications and wiring details
• Check for any exhaust leaks after installation to ensure sensor accuracy

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The ES20108 part number undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.