Delphi ES20415 Oxygen Sensor - Rear or Rear Right

Delphi ES20415 Oxygen Sensor Overview

The Delphi ES20415 is a heated oxygen sensor designed specifically for Toyota Sienna models. Engineered to provide accurate emissions data, this sensor helps maintain optimal engine performance and compliance with emission standards.

• Heated sensor type for faster response times
• 4-wire configuration ensuring reliable signal transmission
• Flat connector shape for secure and easy installation
• Thread size of 18 x 1.5 mm compatible with rear right position
• Overall length of 545.0 mm for precise fitment
• Includes oxygen sensor and instruction sheet

Technical Details and Compatibility

The Delphi ES20415 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. With a 4-wire setup, this sensor provides accurate voltage signals to the engine control unit, enabling precise air-fuel mixture adjustments. The flat connector shape ensures a secure electrical connection, minimizing the risk of disconnection or signal loss. Its thread size of 18 x 1.5 mm and overall length of 545.0 mm make it suitable for installation in the rear right position of Toyota Sienna vehicles. For exact position compatibility, refer to your vehicle’s specifications.

Common Applications and Problem Resolution

• Helps resolve rough idling caused by incorrect air-fuel mixture
• Addresses increased fuel consumption due to faulty oxygen sensor readings
• Reduces engine hesitation and stalling issues
• Supports emission control system compliance
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20415 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18 x 1.5 mm thread to prevent damage. Verify the flat connector aligns properly with the vehicle’s wiring harness to ensure a secure fit. Follow the included instruction sheet for detailed installation guidance. It is recommended to check for any exhaust leaks before installation to ensure accurate sensor readings.

Quality Assurance and Warranty

Delphi manufactures the ES20415 oxygen sensor to meet OEM standards for durability and performance. Each sensor undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects. Consult product documentation or your supplier for exact warranty terms.