Engine Timing Camshaft Sprocket

The GM Genuine Parts timing chain (part number 12646387) is engineered to OE specifications, ensuring precise synchronization of your engine's crankshaft and camshafts. This critical component is vital for the proper timing of valve openings and closings during the intake and exhaust strokes, maintaining optimal engine performance and efficiency. It is manufactured with the expertise of GM engineering, adhering to stringent federal safety and quality standards. This part is designed for a range of GM vehicles, specifically those equipped with 8-cylinder engines including 4.8L, 5.3L, and 6.0L displacements. It is also compatible with certain 6.6L GAS, 5.3L, and 6.2L engines, including those without the ZR1 package or supercharger. The product is backed by a minimum 12-month manufacturer warranty.