ACDelco 12658647 GM Genuine Parts Heated Oxygen Sensor

The ACDelco 12658647 is a GM Genuine Parts heated oxygen sensor designed as a direct OEM replacement for select General Motors vehicles. This precision-engineered O2 sensor serves as a critical feedback component in your vehicle's exhaust system, monitoring exhaust gas composition to optimize engine performance.

Key Features:

• Measures oxygen proportion in exhaust gases for precise air/fuel ratio control
• Enables the engine control module (ECM) to maintain optimal 14.7:1 air/fuel ratio
• Heated sensor design ensures faster response times and accurate readings
• GM Original Equipment quality ensures proper fit, form, and function
• Manufactured to GM specifications for reliable performance and durability
• Helps optimize fuel economy, reduce emissions, and maintain engine efficiency

This genuine GM oxygen sensor provides the same quality and service life as the factory-installed component. Using OE-specification sensors is critical for maintaining proper emission controls and preventing issues such as increased exhaust temperatures, reduced fuel economy, or engine performance problems that can result from non-compliant aftermarket sensors.