When your GM vehicle needs a crankshaft position sensor, this ACDelco OE part is exactly what you want.
The 25195551 is the genuine GM original equipment part, which means it's built to the same specifications as what came on your vehicle from the factory.

This isn't some aftermarket guess - it's the real deal that your GM dealership would install.

The crankshaft position sensor is crucial for your engine's operation; it tells the computer exactly where the crankshaft is positioned so it can time the fuel injection and ignition perfectly.

When these sensors fail, you'll often experience rough running, stalling, or even a no-start condition.
Installation is straightforward if you're comfortable working on engines, though access can be tricky on some models.
The quality is exactly what you'd expect from GM - precise manufacturing, proper connectors, and materials that can handle engine heat and vibration.

I've used this part on several GM vehicles and it always solves the problem without any compatibility issues.
Whether you're a professional mechanic or a DIYer working on your own car, using the OE part eliminates the guesswork and ensures your engine runs right.

It's one of those components where the genuine part is definitely worth the peace of mind over cheaper alternatives.