ACDelco 55488437 EGR Sensor Assembly

The ACDelco 55488437 is a professional-grade EGR (Exhaust Gas Recirculation) sensor assembly designed to monitor exhaust gas flow in your vehicle's emission control system. This sensor plays a critical role in measuring the amount of exhaust gases being recirculated back into the engine intake, helping optimize engine performance and reduce harmful emissions.

Key Features:

• Direct replacement OEM sensor assembly for reliable fit and function
• Monitors EGR valve position and exhaust gas flow rates
• Provides accurate readings to the engine control module (ECM)
• Helps maintain optimal air-fuel ratio and reduce NOx emissions
• Manufactured to ACDelco's strict quality standards
• Designed for durability in high-temperature exhaust environments

When this sensor fails, it can trigger the check engine light and cause issues such as rough idle, poor fuel economy, or failed emissions testing. This genuine ACDelco replacement sensor restores proper EGR system operation and helps keep your vehicle running efficiently while meeting emissions standards.