The Cloyes S679 Engine Timing Crankshaft Sprocket is a high-quality timing component designed for use in Pontiac, Buick, and Oldsmobile vehicles from 1988 to 1995. Manufactured by CARQUEST/Melling Automotive/CPI, this sprocket is a reliable replacement part for ensuring proper engine timing and performance. With its durable construction and precise engineering, the Cloyes S679 sprocket is a vital component for maintaining the efficiency and longevity of your vehicle's engine.