Delphi ES20375 Oxygen Sensor - Rear or Rear Right

Delphi ES20375 Heated Oxygen Sensor Overview

The Delphi ES20375 is a heated oxygen sensor designed for precise emission control in select Mazda vehicles. Engineered with a 4-wire configuration and a square connector shape, this sensor ensures accurate readings and reliable performance for your Mazda 6 or Mazda 626.

• 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 Mazda models
• Overall length of 640.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for guidance
• Positioned for rear or rear right installation depending on vehicle specifics

Technical Details and Compatibility

The Delphi ES20375 oxygen sensor features a heated design that allows it to reach optimal operating temperature quickly, improving fuel efficiency and reducing emissions. Its 4-wire setup supports both sensor heating and signal transmission, enhancing responsiveness and durability. 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 640.0 mm, this sensor fits precisely in the rear or rear right position on compatible Mazda 6 and Mazda 626 models. Refer to your vehicle’s specifications to confirm the exact sensor location.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel mixture for efficient engine performance
• Reduces harmful emissions by providing accurate oxygen level data
• Addresses issues such as rough idling or poor fuel economy caused by faulty sensors
• Prevents check engine light triggers related to oxygen sensor faults
• Supports compliance with emission regulations for Mazda 6 and Mazda 626

Installation Notes and Tips

When installing the Delphi ES20375 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to avoid damaging the sensor threads (18 x 1.5 mm). Verify the sensor’s position as rear or rear right according to your Mazda model’s service manual. Connect the square-shaped connector firmly to prevent electrical issues. Follow the included instruction sheet for detailed installation guidance.

Quality Assurance and Warranty

Delphi manufactures the ES20375 oxygen sensor to meet OEM standards for fit, form, and function. While specific warranty details are not provided here, Delphi products typically come with a limited warranty covering defects in materials and workmanship. For warranty information, consult the product packaging or Delphi’s official resources.