077 109 244 C: Timing belt idler pulley for Audi A6 (C5)

This timing belt idler pulley is a new replacement part designed for the Audi A6 (C5), specifically for the 4.2-litre engines producing 299 bhp (engine codes ARS and ASG) and 340 bhp (engine codes AQJ and ANK). In the context of restoring or servicing a classic vehicle, maintaining the timing system in good condition is absolutely paramount, as failure of this component can result in irreversible engine damage. The idler pulley ensures correct guidance of the timing belt, thereby guaranteeing proper operation of the entire drivetrain. Its regular replacement, along with that of the belt and other pulleys, is part of the essential work required to preserve engine reliability and longevity.