Engine Crankshaft Position Sensor - GM (12646781)

The Genuine GM OEM Engine Crankshaft Position Sensor (MPN: 12646781) is a critical engine management component designed to monitor crankshaft rotation and maintain precise engine timing for optimal fuel injection synchronization. This original equipment manufacturer part ensures accurate ignition timing and fuel delivery across select GM vehicles, helping your engine run efficiently and reliably. As a genuine GM part, it meets factory specifications and requires proper programming setup as outlined in GM Service Information. - **Part Type:** OEM Crankshaft Position Sensor for precise engine timing control - **OEM Fitment:** Genuine GM component engineered for select General Motors vehicles - **Key Function:** Monitors crankshaft position to synchronize fuel injection, ignition timing, and valve operation for optimal engine performance - **Compatibility:** Works seamlessly with GM engine management systems and factory diagnostics when properly programmed per manufacturer specifications - **Condition:** Brand new Genuine OEM part meeting all factory quality and performance standards