Delphi ES20145 Oxygen Sensor - Front, Front Left, Rear or Rear Left

Delphi ES20145 Heated Oxygen Sensor Overview

The Delphi ES20145 is a heated oxygen sensor designed for precise emission control in select Ford, Mazda, and Suzuki vehicles. Engineered with a 4-wire configuration and a square connector shape, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for fast response
• Square connector shape for secure and reliable connection
• Thread size of 18 x 1.5 mm for proper fitment
• Overall length of 340.0 mm to match OEM specifications
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions on select models

Technical Details and Compatibility

The Delphi ES20145 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving emission control efficiency. Its 4-wire setup supports both sensor heating and signal transmission, enhancing durability and accuracy. The square connector shape ensures a secure fit with the vehicle’s wiring harness, while the 18 x 1.5 mm thread size matches factory specifications for easy installation. With an overall length of 340 mm, this sensor fits precisely in the designated mounting locations.

This oxygen sensor is compatible with various Ford, Mazda, and Suzuki models, including the Ford Probe and Mazda 626, MX-6, Millenia, Forenza, Protege, and Protege5. It is suitable for front, front left, rear, and rear left positions, depending on the vehicle’s specific configuration.

Common Applications and Problem Resolution

• Helps correct inaccurate air-fuel mixture readings
• Reduces engine misfires caused by faulty oxygen sensors
• Improves fuel efficiency by providing accurate feedback to the engine control unit
• Assists in lowering harmful emissions to meet regulatory standards
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Before installation, verify the sensor position (front or rear) specific to your vehicle model. Use the included instruction sheet for guidance on proper torque and connector engagement. Ensure the thread size matches the mounting port to avoid leaks or sensor damage. It is recommended to disconnect the battery before replacing the oxygen sensor to prevent electrical issues. After installation, clear any diagnostic trouble codes to reset the engine control system.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for fit, form, and function. The ES20145 part number undergoes rigorous testing to ensure reliable performance in emission control systems. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s durability and longevity.