Delphi ES20397 Oxygen Sensor - Front Right

Delphi ES20397 Oxygen Sensor Overview

The Delphi ES20397 is a heated oxygen sensor designed specifically for Hyundai Santa Fe and Veracruz models. This sensor plays a critical role in monitoring exhaust gases to optimize engine performance and reduce emissions.

• Heated sensor type for faster response times
• 4-wire configuration ensuring accurate signal transmission
• Flat connector shape for secure and reliable connection
• Thread size of 18 x 1.5 mm for precise fitment
• Overall length of 395.0 mm suitable for front right position
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Features

The Delphi ES20397 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and emissions control. Its 4-wire setup supports both the sensor signal and heater circuit, ensuring consistent performance. The flat connector shape is engineered for a secure fit, minimizing the risk of disconnection or signal loss. With a thread size of 18 x 1.5 mm, this sensor installs directly into the front right exhaust manifold or pipe of Hyundai Santa Fe and Veracruz vehicles. The overall length of 395.0 mm provides the correct reach for proper placement and function.

Compatible Hyundai Models and Applications

This oxygen sensor is compatible with Hyundai Santa Fe and Veracruz models, specifically designed for the front right position. Using the Delphi ES20397 ensures that your vehicle’s emission control system operates efficiently, helping maintain optimal air-fuel mixture and reducing harmful exhaust emissions.

Common Issues Addressed by the Delphi ES20397

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor failure

Installation Notes and Tips

When installing the Delphi ES20397 oxygen sensor, ensure the engine is cool to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Verify the flat connector is fully seated to prevent electrical issues. It is recommended to inspect the sensor wiring harness for damage before installation. Proper installation in the front right position is critical for accurate sensor readings and vehicle performance.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications, ensuring reliable performance and durability. The ES20397 part number undergoes rigorous testing to comply with emission standards. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.