Delphi ES11074 Oxygen Sensor - Center, Rear or Rear Left

Delphi ES11074 Heated Oxygen Sensor Overview

The Delphi ES11074 is a heated oxygen sensor designed for precise emission control in select Infiniti and Nissan 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 vehicle models
• Includes oxygen sensor and instruction sheet for installation guidance
• Position-specific fitment: center, rear, rear left locations

Technical Details and Compatibility

The Delphi ES11074 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 are engineered to match the original equipment specifications for a secure and leak-free installation. This sensor is compatible with various Infiniti and Nissan models, including the Altima, GT-R, Maxima, Murano, NV2500, NV3500, Quest, QX56, and QX80. The sensor is intended for center, rear, or rear left positions depending on the vehicle’s specific configuration.

Applications and Problem Resolution

This oxygen sensor is critical for maintaining proper engine function and emissions control. It helps the engine control unit (ECU) monitor and adjust the air-fuel ratio for efficient combustion. The Delphi ES11074 can address issues such as:

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine hesitation or rough idling caused by sensor malfunction
• Reduced engine performance linked to inaccurate oxygen sensing

Installation Notes and Tips

When installing the Delphi ES11074 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the included instruction sheet for guidance on sensor location and connector attachment. Apply anti-seize compound to the threads if recommended by the vehicle manufacturer to prevent seizing. Confirm the sensor position matches the original (center, rear, or rear left) to maintain proper function. Verify all electrical connections are secure and free of corrosion before completing installation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet or exceed OEM standards for durability and accuracy. The ES11074 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. Consult product documentation or the vehicle’s service manual for warranty terms applicable to this oxygen sensor.