ACDelco 12665161 GM Genuine Parts Heated Oxygen Sensor

The ACDelco 12665161 is a GM Original Equipment heated oxygen sensor designed as a direct replacement for your vehicle's original component. This sensor is a critical feedback component in your vehicle's exhaust system that continuously monitors the proportion of oxygen in the exhaust gases to optimize engine performance, emissions, and fuel economy.

Key Features:

• Measures oxygen content in exhaust gases for precise air/fuel ratio control
• Helps maintain optimal 14.7:1 air/fuel ratio for peak performance
• GM Original Equipment quality - manufactured to exact GM specifications
• Validated sensor components for engine-specific applications
• Correct wire length engineered to prevent heat damage and premature failure
• Direct replacement for GM vehicles requiring this part number

This genuine GM oxygen sensor is engineered to meet the rigorous standards set by General Motors, providing the same performance, durability, and service life you expect from factory-installed components. Using non-OE oxygen sensors can lead to increased emissions, reduced fuel economy, or even catalytic converter damage due to incorrect element type or cover design.