Delphi ES20072 Oxygen Sensor - Front, Rear, Rear Left or Rear Right

Delphi ES20072 Heated Oxygen Sensor Overview

The Delphi ES20072 is a heated oxygen sensor designed for precise emission control in select Chevrolet, Lexus, and Toyota 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 fast response
• Square connector shape for secure and reliable connection
• Thread size of 18 x 1.5 mm for proper fitment
• Overall length of 410.0 mm to match OEM specifications
• Includes oxygen sensor and instruction sheet for installation guidance
• Compatible with front, rear, rear left, and rear right positions

Detailed Product Description

The Delphi ES20072 oxygen sensor is a critical component in the emission control system, designed to monitor the oxygen levels in the exhaust gases. Its heated sensor type allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design supports both the sensor signal and the heating element, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size provide a secure fit and easy installation in vehicles such as the Toyota 4Runner, Lexus LX470, and Chevrolet Silverado models. With an overall length of 410 mm, this sensor fits precisely in designated front and rear positions, including rear left and rear right locations.

Compatible Vehicles and Applications

• Chevrolet Pickup, Silverado, and other compatible models
• Lexus LX470 and related models
• Toyota 4Runner, Corolla, Land Cruiser, Sequoia, Sienna, T100, Tacoma, Tundra, and Prizm

Common Issues Addressed by the Delphi ES20072 Oxygen Sensor

• 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

Before installation, ensure the engine is cool to avoid burns. Use the included instruction sheet for proper wiring and positioning. The 18 x 1.5 mm thread size requires a compatible oxygen sensor socket for removal and installation. Verify the sensor position (front, rear, rear left, or rear right) matches the vehicle’s OEM specifications. Avoid over-tightening to prevent damage to the sensor or exhaust manifold.

Quality Assurance and Warranty

Delphi manufactures the ES20072 oxygen sensor to meet or exceed OEM standards for durability and performance. The heated sensor design supports reliable operation under various driving conditions. While specific warranty details may vary, Delphi typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.