Delphi ES20410 Oxygen Sensor - Rear or Rear Left

Delphi ES20410 Heated Oxygen Sensor Overview

The Delphi ES20410 is a heated oxygen sensor designed for precise emission control in select Lexus and Toyota hybrid models. Engineered with a 4-wire configuration and a square connector, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for reliable operation
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 600 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for rear or rear left placement depending on vehicle

Technical Details and Compatibility

The Delphi ES20410 oxygen sensor is specifically designed for emission control systems in Lexus and Toyota hybrid vehicles, including the CT200h, Highlander, Prius, Prius Plug-In, Prius V, and RX450h models. Its heated sensor type allows for faster warm-up times, improving emission readings shortly after engine start. The 4-wire design supports both sensor heating and signal transmission, enhancing durability and accuracy. The square connector shape ensures a secure electrical connection, while the 18 x 1.5 mm thread size matches OEM specifications for proper installation. With an overall length of 600 mm, this sensor fits precisely in the rear or rear left position, depending on the vehicle's configuration. Refer to your vehicle’s service manual for exact positioning.

Common Applications and Problem Resolution

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

Installation Notes and Tips

When installing the Delphi ES20410 oxygen sensor, ensure the engine is cool to avoid burns. Use the included instruction sheet for guidance on sensor placement and connector attachment. Verify the thread size matches the vehicle’s exhaust port to prevent leaks. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Confirm the sensor is installed in the correct rear or rear left position as specified for your Lexus or Toyota model.

Quality Assurance and Warranty

Delphi manufactures the ES20410 oxygen sensor to meet OEM standards for durability and performance. This 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 the product documentation or your supplier for exact warranty terms.