ACDelco 12667438 Heated Oxygen Sensor Assembly

The ACDelco 12667438 is a heated oxygen sensor assembly designed to monitor the oxygen content in your vehicle's exhaust system. This sensor plays a critical role in engine management by providing real-time feedback to the engine control module (ECM), allowing for optimal air-fuel ratio adjustments that maximize fuel efficiency and reduce emissions.

Key Features:

• Direct replacement OEM sensor for reliable performance
• Heated element ensures faster sensor operation and accurate readings in all conditions
• Precision-engineered to meet strict quality and durability standards
• Helps maintain proper engine performance and fuel economy
• Essential component for emissions system diagnostics and compliance

ACDelco oxygen sensors are built to OE specifications, ensuring proper fit and function. Regular replacement of oxygen sensors helps maintain engine efficiency, prevents check engine lights related to oxygen sensor circuit codes, and keeps your vehicle running cleanly.