Delphi ES20363 Oxygen Sensor - Rear Left or Rear Right

Delphi ES20363 Heated Oxygen Sensor Overview

The Delphi ES20363 is a heated oxygen sensor designed for precise emission control in select Nissan and INFINITI vehicles. Engineered with a 4-wire configuration and a square connector shape, this sensor ensures accurate readings and reliable performance in the rear exhaust positions.

• 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 800 mm for optimal installation
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment: rear, rear left, and rear right

Technical Details and Compatibility

The Delphi ES20363 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 4-wire setup supports both sensor heating and signal transmission, enhancing sensor responsiveness. The square connector shape ensures a secure electrical connection, minimizing the risk of disconnection or signal loss. With a thread size of 18 x 1.5 mm and an overall length of 800 mm, this sensor is tailored for rear exhaust positions on compatible vehicles.

This oxygen sensor is compatible with various Nissan and INFINITI models, including the Nissan Maxima, Pathfinder, Sentra, and the INFINITI I35 and QX4. The ES20363 part number corresponds specifically to rear, rear left, and rear right positions, ensuring precise fitment and function.

Common Applications and Problem Resolution

• Helps maintain optimal air-fuel mixture for efficient engine performance
• Reduces emissions by providing accurate exhaust gas readings
• Addresses issues such as rough idling and poor fuel economy
• Prevents check engine light triggers related to oxygen sensor faults
• Improves catalytic converter efficiency by monitoring exhaust gases

Installation Notes and Tips

When installing the Delphi ES20363 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the included instruction sheet for guidance on proper torque specifications and connector engagement. Verify the sensor position matches the rear, rear left, or rear right location as required by your Nissan or INFINITI model. It is recommended to inspect the wiring harness and connector for damage before installation to ensure reliable operation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20363 undergoes rigorous testing to ensure accurate sensor readings and long service life. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s reliability for your Nissan or INFINITI vehicle.