Delphi ES20007 Oxygen Sensor - Front or Rear

Delphi ES20007 Heated Oxygen Sensor Overview

The Delphi ES20007 is a heated oxygen sensor designed for precise emission control in select GM 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 GM models
• Overall length of 310.0 mm for correct installation depth
• Includes oxygen sensor and instruction sheet for installation guidance

Technical Details and Compatibility

The Delphi ES20007 oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. The 4-wire design 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 fit front or rear positions depending on the vehicle application. This sensor is compatible with a range of Buick, Cadillac, Chevrolet, GMC, Pontiac, and Saturn models including the Acadia, Avalanche 1500, Bonneville, Cobalt, Corvette, CTS, DeVille, Enclave, Equinox, Escalade, G6, G8, Grand Prix, GTO, HHR, Impala, LaCrosse, Malibu, Monte Carlo, Silverado 1500, Suburban 1500, Tahoe, Torrent, Uplander, Yukon, and Yukon XL 1500.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires caused by faulty oxygen sensor readings
• Improves fuel economy by providing accurate feedback to the engine control unit
• Assists in lowering harmful emissions to meet environmental standards
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Before installation, verify the sensor position (front or rear) specific to your vehicle model. Use the included instruction sheet for detailed guidance. Ensure the thread size matches the exhaust port to avoid cross-threading. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Disconnect the battery before installation to prevent electrical shorts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications for durability and performance. The ES20007 part number 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 or manufacturer for exact warranty terms.