ACDelco 12661898 Heated Oxygen Sensor Assembly

The ACDelco 12661898 is a genuine GM heated oxygen sensor assembly designed to monitor exhaust gas oxygen content and provide critical feedback to the engine control module. This OE-quality sensor helps maintain optimal air-fuel ratios for efficient combustion, reduced emissions, and peak engine performance.

Key Features:

• Genuine GM OE part designed for precise fit and function
• Heated element design for faster sensor activation and accurate readings
• Monitors oxygen levels in exhaust gases to optimize fuel mixture
• Helps maintain fuel efficiency and reduce harmful emissions
• Direct replacement for worn or failed oxygen sensors
• Manufactured to ACDelco's strict quality standards

Oxygen sensors are critical emissions components that can affect drivability, fuel economy, and emissions test results. This ACDelco sensor provides OE-quality performance and reliability for GM vehicles.