Delphi ES20127 Oxygen Sensor

Delphi ES20127 Heated Oxygen Sensor Overview

The Delphi ES20127 is a heated oxygen sensor designed for precise emission control in select Acura, Honda, and Saturn 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 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 650 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front and rear positions including front left, front right, rear left, and rear right

Technical Details and Compatibility

The Delphi ES20127 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. The 4-wire setup supports both the sensor signal and heater circuit, ensuring consistent performance. Its square connector shape and 18 x 1.5 mm thread size provide a secure fit in the exhaust system. With an overall length of 650 mm, this sensor fits properly in the exhaust manifold or pipe, depending on the vehicle's configuration.

This oxygen sensor is compatible with a range of Acura, Honda, and Saturn models, including the Acura MDX, NSX, RL, S2000, TL; Honda Accord, Civic, Odyssey, Pilot, Ridgeline; and Saturn Vue. The ES20127 part number ensures you receive the correct sensor for these specific applications.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensor readings
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate feedback to the engine control unit
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES20127 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use the included instruction sheet for guidance on sensor placement and wiring connections. Verify the sensor’s thread size matches the vehicle’s exhaust port (18 x 1.5 mm). Proper torque specifications should be followed to avoid damage to the sensor or exhaust components. The square connector must be securely connected to prevent signal loss or heater circuit failure.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications for durability and performance. The ES20127 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 for exact warranty terms.