GM Genuine Parts 25190821 Crankshaft Pulley

The ACDelco GM Original Equipment Engine Crankshaft Pulley is a GM-recommended replacement for your vehicle’s original component. It is attached to, and driven by, the front of the engine crankshaft. It is connected to various engine accessory drive components by a belt drive system and ensures components such as the water pump, alternator, and power steering pump receive power from the rotating crankshaft to perform their vital functions. The crankshaft pulley also works as a harmonic damper to decrease crankshaft torsional vibration. This original equipment engine crankshaft pulley has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

• Provides power to the engine accessory drive system for proper engine performance
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies