ACDelco Drive Belt Tensioner Pulley

The ACDelco Drive Belt Tensioner Pulley (also called a serpentine belt tensioner pulley or idler pulley) guides the drive belt and keeps it on its path. It helps the belt stay properly tensioned and aligned, so the accessory drive can run reliably. The accessory drive powers components such as the alternator, power steering pump, water pump and A/C compressor.

Key Features:

• Designed to help maintain smooth, consistent belt tracking and tension
• Built with a precision bearing to support quiet, low-friction rotation
• Durable pulley construction made for long service life under heat and load
• Engineered to meet ACDelco quality standards for fit, form and function
• Helps reduce belt slip, squealing and uneven belt wear

Replacing a worn or noisy tensioner or idler pulley helps protect the drive belt and the components it powers. ACDelco is a well-known name in replacement automotive parts. Choose the variant that matches your application from the options listed on this page.