Delphi ES20186 Oxygen Sensor - Rear Right

Delphi ES20186 Heated Oxygen Sensor Overview

The Delphi ES20186 oxygen sensor is designed for precise emission control in select Mazda vehicles. This heated oxygen sensor helps maintain optimal engine performance and reduces harmful emissions by accurately monitoring exhaust gases.

• Heated sensor type for faster response times
• 4-wire design ensuring reliable electrical connections
• Square connector shape for secure fitment
• Thread size of 18 x 1.5 mm compatible with specific Mazda models
• Overall length of 380.0 mm for proper installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Positioned for front or rear right exhaust locations depending on vehicle

Detailed Product Description

The Delphi ES20186 oxygen sensor is engineered to meet the emission control requirements of Mazda 6 and Mazda 929 models. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings. The 4-wire configuration supports both the sensor signal and heater circuit, improving sensor responsiveness and durability. Its square connector shape ensures a secure and precise electrical connection, while the 18 x 1.5 mm thread size matches factory specifications for straightforward installation. With an overall length of 380.0 mm, this sensor fits correctly in the exhaust system to monitor oxygen content effectively. The package includes the oxygen sensor and an instruction sheet to assist with proper installation and positioning, which is typically at the front or rear right side of the exhaust system depending on the vehicle's setup.

Common Applications and Issues Addressed

• Helps reduce vehicle emissions by accurately measuring exhaust oxygen levels
• Improves fuel efficiency by providing precise data to the engine control unit
• Resolves engine performance issues related to faulty oxygen sensors
• Prevents check engine light triggers caused by sensor malfunctions
• Supports compliance with emission regulations for Mazda 6 and 929 models

Installation Notes and Tips

• Verify sensor position (front or rear right) specific to your Mazda model before installation
• Use proper tools to avoid damaging the 18 x 1.5 mm threaded fitting
• Ensure the square connector is fully seated to maintain electrical integrity
• Follow the included instruction sheet for torque specifications and wiring guidance
• Allow the engine to cool before removing the old sensor to prevent injury

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20186 part number 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. Refer to the product documentation or manufacturer resources for exact warranty terms.