Delphi ES20115 Oxygen Sensor - Rear, Rear Left or Rear Right

Delphi ES20115 Heated Oxygen Sensor Overview

The Delphi ES20115 is a heated oxygen sensor designed for precise emission control in select Saab, Saturn, and Volvo vehicles. This sensor helps maintain optimal engine performance and reduces harmful emissions by accurately monitoring oxygen levels in the exhaust system.

• Heated sensor type for faster response times
• 4-wire design ensuring reliable electrical connections
• Flat connector shape for secure and easy installation
• Thread size of 18 x 1.5 mm compatible with specific vehicle exhaust ports
• Overall length of 1045.0 mm for proper fitment
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment for rear, rear left, and rear right locations

Detailed Description of the Delphi ES20115 Oxygen Sensor

The Delphi ES20115 oxygen sensor is engineered to meet the emission control requirements of Saab 9-3, 9-3X, 9-5, Saturn L300, LS2, LW2, and Volvo S80 models. Its heated sensor element allows the unit to reach operating temperature quickly, improving fuel efficiency and reducing emissions during cold starts. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The flat connector shape simplifies wiring connections, while the 18 x 1.5 mm thread size matches OEM specifications for a secure fit. With an overall length of 1045 mm, this sensor is designed to fit precisely in the rear exhaust positions, including rear left and rear right, depending on the vehicle's configuration.

Common Applications and Issues Addressed

• Helps correct air-fuel mixture for improved engine efficiency
• Reduces exhaust emissions to meet environmental standards
• Prevents engine warning lights related to oxygen sensor faults
• Improves fuel economy by providing accurate oxygen level data
• Supports proper catalytic converter function by monitoring exhaust gases

Installation Notes and Tips

• Ensure the sensor thread size (18 x 1.5 mm) matches the vehicle’s exhaust port
• Use the included instruction sheet for proper wiring and positioning
• Install in the specified rear, rear left, or rear right position as required by the vehicle
• Check for secure flat connector engagement to avoid electrical issues
• Allow the engine to cool before sensor replacement to prevent injury

Quality Assurance and Warranty Information

Delphi oxygen sensors are manufactured to meet strict OEM standards for durability and performance. The ES20115 part number undergoes rigorous testing to ensure reliable operation in Saab, Saturn, and Volvo vehicles. While specific warranty terms may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in product quality.