Delphi ES20372 Oxygen Sensor - Rear

Overview of Delphi ES20372 Heated Oxygen Sensor

The Delphi ES20372 is a heated oxygen sensor designed for precise emission control in select Lexus, Pontiac, and Toyota vehicles. This rear-position sensor features a 4-wire configuration and a square connector shape, ensuring reliable performance and compatibility with specific models like the Toyota Corolla and Lexus LS430.

• Heated oxygen sensor with 4 wires for accurate readings
• Square connector shape for secure electrical connection
• Thread size of 18 x 1.5 mm for proper fitment
• Overall length of 800.0 mm to reach rear exhaust position
• Includes oxygen sensor and instruction sheet for installation guidance

Detailed Product Description

The Delphi ES20372 oxygen sensor is engineered to monitor exhaust gases effectively, helping maintain optimal engine performance and emissions compliance. Its heated design allows the sensor to reach operating temperature quickly, improving response time and fuel efficiency. The 4-wire setup supports both the sensor signal and heater circuit, while the square connector shape ensures a secure and corrosion-resistant connection. With a thread size of 18 x 1.5 mm and an overall length of 800 mm, this sensor is specifically designed for rear exhaust placement in vehicles such as the Toyota Matrix, Lexus SC430, and Pontiac Vibe.

Compatible Vehicles and Applications

• Compatible with Lexus LS430 and SC430 models
• Fits Toyota Corolla and Matrix vehicles
• Suitable for Pontiac Vibe rear oxygen sensor replacement

Common Issues Addressed by the Delphi ES20372 Oxygen Sensor

• Improves fuel efficiency by providing accurate oxygen level data
• Helps reduce harmful emissions by optimizing air-fuel mixture
• Prevents engine performance issues related to faulty sensors
• Resolves check engine light triggers caused by sensor failure
• Supports proper catalytic converter function through precise monitoring

Installation Notes and Tips

When installing the Delphi ES20372 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct 18 x 1.5 mm thread size to avoid cross-threading. Verify the square connector matches the vehicle harness for a secure fit. Follow the included instruction sheet carefully to maintain sensor integrity and proper operation. It is recommended to use anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Delphi manufactures the ES20372 oxygen sensor to meet OEM specifications, ensuring reliable performance and durability. This sensor undergoes rigorous testing to comply with emission standards. While specific warranty details may vary, Delphi typically offers coverage against manufacturing defects to provide confidence in product quality.