Delphi ES20028 Oxygen Sensor - Front

Delphi ES20028 Heated Oxygen Sensor Overview

The Delphi ES20028 is a heated oxygen sensor designed for precise emission control in select Chevrolet and GMC trucks and SUVs. Engineered with a flat connector and four wires, this sensor ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor type for faster response times
• Four-wire design for reliable signal transmission
• Flat connector shape for secure and easy installation
• Thread size of 18 x 1.5 mm compatible with specified vehicles
• Overall length of 375.0 mm for proper fitment
• Includes oxygen sensor and instruction sheet
• Positioned for front installation in exhaust system

Detailed Product Description

The Delphi ES20028 oxygen sensor is a heated sensor that uses four wires to provide accurate and timely feedback to the engine control unit (ECU). The heating element allows the sensor to reach operating temperature quickly, improving emissions control and fuel efficiency. Its flat connector shape ensures a secure electrical connection, reducing the risk of signal loss or corrosion. The sensor’s thread size of 18 x 1.5 mm and overall length of 375.0 mm are designed to fit front exhaust positions on a range of Chevrolet and GMC models, including the Silverado 2500, Tahoe, Yukon XL 2500, and various C and K series trucks and Suburbans.

Compatible Vehicles and Applications

This oxygen sensor is compatible with multiple Chevrolet and GMC vehicles, specifically:

• Chevrolet C1500, C1500 Suburban, C2500, C2500 Suburban, C3500
• Chevrolet Express 2500, Express 3500
• Chevrolet K1500, K1500 Suburban, K2500, K2500 Suburban, K3500
• Chevrolet P30, P3500
• GMC Savana 2500, Savana 3500
• GMC Sierra 2500, Suburban 2500, Tahoe, Yukon, Yukon XL 2500

Common Issues Addressed by the Delphi ES20028 Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to delayed sensor response
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor malfunction

Installation Notes and Tips

• Ensure the vehicle is cooled down before sensor replacement to avoid burns
• Use the correct 18 x 1.5 mm thread size to avoid cross-threading
• Apply anti-seize compound on sensor threads if recommended by manufacturer
• Verify the flat connector is securely attached to prevent electrical issues
• Follow the included instruction sheet for proper installation procedures

Quality Assurance and Warranty

Delphi oxygen sensors are manufactured to meet OEM specifications for durability and performance. The ES20028 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 to provide confidence in product quality.