Dayco Accessory Belt Idler Pulley

The Dayco Accessory Belt Idler Pulley is a replacement idler pulley for the serpentine (accessory) drive system. It guides the belt and keeps it routed correctly. It helps maintain proper belt contact across the drive, so the alternator, power steering pump, A/C compressor and water pump can run reliably. It is also known as a serpentine belt idler pulley, drive belt idler pulley or accessory drive idler.

Key Features:

• Designed to replace a worn or noisy idler pulley in the accessory belt drive
• Built with a precision bearing for smooth, quiet rotation
• Durable pulley construction made to hold up to the heat, load and belt tension of daily driving
• Helps reduce belt wear, noise and vibration when installed with a quality serpentine belt
• Backed by Dayco, a long-time supplier of belts, tensioners, pulleys and other engine drive components to OE and aftermarket customers

A worn idler pulley can cause squealing, chirping, belt wobble or premature belt failure. Replacing it when you replace the belt or tensioner helps restore smooth operation of the accessory drive. Select the child item that matches your application.