ACDelco 12641040 Gm Original Equipment Engine Crankshaft Position Sensor

The ACDelco 12641040 is a GM Original Equipment crankshaft position sensor designed to deliver reliable engine performance monitoring. This critical engine management component monitors the position and rotational speed of the crankshaft, sending precise signals to the engine control module (ECM) to optimize ignition timing and fuel injection.

Key Features:

• GM Original Equipment quality for precise fit and reliable performance
• Direct replacement for worn or failed crankshaft position sensors
• Ensures accurate crankshaft position data for optimal engine timing
• Helps prevent starting issues, rough idle, and engine stalling
• Manufactured to strict OEM specifications for GM vehicles

This sensor is essential for proper engine operation, as the ECM relies on its signal to determine when to fire the spark plugs and inject fuel. A failing crankshaft position sensor can cause check engine lights, poor fuel economy, misfires, or prevent the vehicle from starting altogether.