Delphi ES10959 Oxygen Sensor - Front Left or Front Right

Delphi ES10959 Heated Oxygen Sensor Overview

The Delphi ES10959 oxygen sensor is designed for precise emission control in select Nissan and Infiniti vehicles. This heated oxygen sensor ensures accurate air-fuel mixture readings, helping maintain optimal engine performance and emissions compliance.

• Heated sensor type for faster response times
• 3-wire configuration with a flat connector shape
• Thread size of 18 x 1.5 mm for secure installation
• Overall length of 680 mm for proper fitment
• Includes oxygen sensor and instruction sheet
• Position-specific fitment for front left and front right locations

Technical Details and Compatibility

The Delphi ES10959 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving sensor accuracy and reducing emissions during cold starts. Its 3-wire setup and flat connector shape ensure compatibility with the vehicle’s wiring harness. The sensor’s thread size of 18 x 1.5 mm matches OEM specifications, providing a secure and leak-free fit. With an overall length of 680 mm, this sensor is designed to fit front left and front right positions on compatible vehicles.

This oxygen sensor is compatible with various Nissan and Infiniti models, including the Nissan Maxima, Pathfinder, QX4, and the Infiniti I30. The part number ES10959 should be referenced to confirm fitment with your specific vehicle model and year.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires and rough idling caused by faulty sensors
• Improves fuel economy by providing accurate oxygen level data
• Supports emission system compliance by monitoring exhaust gases
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Delphi ES10959 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct thread size (18 x 1.5 mm) to avoid cross-threading. The sensor is designed for front left and front right positions, so verify the correct side before installation. Follow the included instruction sheet for wiring and torque specifications. It is recommended to use anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. The ES10959 part undergoes rigorous testing to ensure reliable operation under various driving conditions. This product typically includes a limited warranty covering defects in materials and workmanship; please refer to the warranty documentation provided with the sensor for specific terms.