ACDelco Professional Automatic Belt Tensioner Assembly with Pulley

The ACDelco Professional Automatic Belt Tensioner Assembly with Pulley keeps the serpentine (drive) belt at the correct tension. It helps the accessory drive run quietly and reliably. This tensioner is also called a drive belt tensioner or serpentine belt tensioner. It is a replacement for worn tensioners that cause belt squeal, belt slip, vibration, or uneven belt wear.

Key Features:

• Complete assembly with an integrated pulley for straightforward installation
• Automatic spring-loaded design maintains consistent belt tension through the belt's service life
• Built to meet ACDelco Professional quality standards for fit, form, and function
• Helps protect the belt and the driven accessories, such as the alternator, water pump, and A/C compressor, from premature wear
• Designed to be a direct replacement for the original component

ACDelco is a long-established automotive parts brand with a heritage tied to General Motors. The Professional line is made for technicians and DIYers who want dependable replacement parts. For best results, inspect the belt and the other pulleys when you replace the tensioner. Replace the belt if it shows cracking, glazing, or wear.