ACDelco Idler Pulley

The ACDelco Idler Pulley line includes engine drive belt idler pulleys (also called belt idlers or accessory drive idler pulleys). They guide and tension the serpentine or drive belt so it tracks correctly and transfers power to engine accessories. ACDelco is a long-established brand and GM's original equipment parts supplier. It offers replacement parts for a wide range of vehicles.

Key Features:

• Guides the drive belt and maintains correct belt routing and contact
• Smooth-rolling bearing construction for quiet operation
• Available in Professional-series and flanged designs, and some versions include a dust shield to help protect the bearing
• Direct-replacement design for worn, noisy or wobbling idler pulleys

Replacing a worn idler pulley helps prevent belt squeal, uneven belt wear and accessory drive problems. Check the belt and tensioner at the same time, and replace them as needed.