Delphi ES20077 Oxygen Sensor - Center, Front or Rear

Delphi ES20077 Heated Oxygen Sensor Overview

The Delphi ES20077 is a heated oxygen sensor designed for precise emission control in select Dodge and Mitsubishi vehicles. Engineered with a 4-wire configuration and a square connector, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor with 4 wires for reliable operation
• Square connector shape for secure and proper fitment
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 325.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment: center, front, or rear depending on vehicle requirements

Technical Details and Compatibility

The Delphi ES20077 oxygen sensor is engineered to meet the emission control needs of various Dodge and Mitsubishi models, including the Dodge Ram 50 and Mitsubishi Eclipse. Its heated sensor type allows for faster warm-up times, improving sensor responsiveness and reducing emissions during cold starts. The 4-wire design supports both sensor heating and signal transmission, ensuring accurate oxygen level detection. The square connector shape and 18 x 1.5 mm thread size provide a secure and precise fit, while the 325.0 mm overall length accommodates proper sensor placement in the exhaust system.

Compatible Vehicles

• Dodge Ram 50
• Dodge Colt
• Mitsubishi Eclipse
• Mitsubishi Galant
• Mitsubishi Mighty Max
• Mitsubishi Mirage
• Mitsubishi Sigma
• Mitsubishi Expo and Expo LRV

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues related to faulty oxygen sensors
• Supports proper functioning of the vehicle’s emission control system
• Addresses check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20077 oxygen sensor, ensure the correct position is selected based on your vehicle’s specifications—center, front, or rear. Use the included instruction sheet for guidance on torque specifications and connector engagement. It is recommended to inspect the sensor wiring and connector for damage before installation. Proper installation helps maintain sensor accuracy and longevity.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM standards for durability and performance. The ES20077 part number undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product quality.