ACDelco 55510278 Heated Oxygen Sensor

The ACDelco 55510278 is a heated oxygen sensor (HO2S) designed to monitor the oxygen content in your vehicle's exhaust system. This sensor plays a critical role in helping the engine control module optimize the air-fuel mixture for efficient combustion, reduced emissions, and improved fuel economy.

Key Features:

• Heated design ensures faster sensor response time during cold starts
• Precision-engineered to meet GM OE specifications for reliable performance
• Durable construction withstands high exhaust temperatures and harsh conditions
• Direct-fit replacement for specific GM vehicle applications
• Helps maintain proper engine performance and emissions compliance

ACDelco oxygen sensors are built to original equipment standards, providing dependable service and accurate readings for your vehicle's engine management system. This genuine GM part ensures proper fit and function for compatible applications.