Delphi ES20071 Oxygen Sensor - Front or Rear

Delphi ES20071 Heated Oxygen Sensor Overview

The Delphi ES20071 is a heated oxygen sensor designed for precise emission control in select Lexus and Toyota vehicles. Engineered with a 4-wire configuration and a square connector shape, this sensor ensures accurate readings and reliable performance for models like the Toyota Tacoma and Lexus LX450.

• Heated oxygen sensor with 4 wires for efficient operation
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 555.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions depending on vehicle model

Technical Details and Compatibility

The Delphi ES20071 oxygen sensor is engineered to meet the emission control requirements of various Lexus and Toyota models, including the 4Runner, Land Cruiser, LX450, Previa, T100, and Tacoma. Its heated sensor type allows for faster warm-up times, improving fuel efficiency and reducing emissions. The 4-wire design supports both the sensor element and the heater circuit, ensuring accurate oxygen level detection under different operating conditions. The square connector shape and 18 x 1.5 mm thread size provide a secure and precise fit, while the 555.0 mm overall length accommodates proper sensor placement in the exhaust system.

Common Applications and Problem Resolution

• Helps resolve issues related to poor fuel economy caused by faulty oxygen sensors
• Addresses engine performance problems such as rough idling or hesitation
• Reduces increased emissions by providing accurate air-fuel mixture data
• Prevents check engine light triggers related to oxygen sensor faults
• Supports proper catalytic converter function by maintaining correct sensor readings

Installation Notes and Tips

When installing the Delphi ES20071 oxygen sensor, ensure the correct position (front or rear) is selected based on your specific Lexus or Toyota model. Use the included instruction sheet for guidance on torque specifications and connector engagement. It is recommended to inspect the wiring harness and connector for damage before installation. Proper thread engagement with the 18 x 1.5 mm size is critical to avoid exhaust leaks or sensor malfunction.

Quality Assurance and Warranty

Delphi manufactures the ES20071 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 defects in materials and workmanship to support long-term use in Lexus and Toyota vehicles.