ACDelco GM Serpentine Belt OE 12577770

Upgrade your vehicle with the ACDelco GM Original Equipment 12577770 Serpentine Belt, engineered and validated by General Motors to meet strict OE standards. Designed for Chevrolet, Buick, GMC, and Cadillac models, this high-performance belt ensures reliable operation of pulleys and drive accessories using a single, durable design. Its ribbed construction delivers superior traction and a secure fit, minimizing slippage for optimal engine performance.

Backed by GM’s rigorous testing, this serpentine belt replaces worn or damaged units while maintaining compatibility with your vehicle’s safety systems. Note: Some ACDelco OE parts may have previously been sold as GM Genuine Parts or ACDelco Professional. Trust OE-quality components to keep your GM vehicle running smoothly.