Crafted for dependability, the ACDelco GM Original Equipment V-Ribbed Serpentine Belt is designed to meet the high-quality standards of your vehicle's engine. The 12634319 part number ensures a precise fit for seamless integration with your car's serpentine system. This belt is engineered to provide superior strength and flexibility, ensuring smooth operation and extended life. With its precise ribbed design, it efficiently transfers power from the engine to the accessories, maintaining the performance and reliability of your vehicle's belt-driven components.