ACDelco 55574136 GM Original Equipment Oxygen Sensor

The ACDelco 55574136 is a GM Original Equipment oxygen sensor designed to monitor exhaust gas oxygen content and provide critical feedback to the engine control module for optimal air-fuel ratio management. This sensor helps ensure proper engine performance, fuel efficiency, and emissions control.

Key Features:

• GM Original Equipment quality designed for precise fit and reliable performance
• Monitors oxygen content in exhaust gases to optimize fuel delivery
• Helps maintain proper air-fuel mixture for improved fuel economy
• Ensures compliance with emissions standards
• Direct replacement for worn or failed oxygen sensors
• Engineered to meet or exceed OE specifications

Oxygen sensors are critical emission control components that deteriorate over time due to exposure to extreme heat and contaminants. A failing oxygen sensor can cause poor fuel economy, rough idle, increased emissions, and illuminated check engine lights. This ACDelco oxygen sensor restores proper sensor function to keep your GM vehicle running efficiently.