ACDelco Professional Belt Drive Tensioner Assembly

The ACDelco Professional Belt Drive Tensioner Assembly (also called a serpentine belt tensioner or drive belt tensioner) keeps the proper tension on the accessory drive belt. Correct tension helps the belt turn the alternator, power steering pump, water pump, and air conditioning compressor reliably.

Key Features:

• Complete assembly design with a spring-loaded tensioner arm and pulley for consistent belt tension
• Engineered to meet or exceed original equipment performance expectations
• Helps reduce belt slip, squealing, and premature belt wear
• Durable construction for long service life under demanding under-hood conditions
• Part of the ACDelco Professional line, backed by the ACDelco brand's long history in OE-quality replacement parts

Replacing a worn tensioner along with the drive belt helps restore smooth accessory drive operation and prevents problems such as noise, belt jumping, and loss of accessory function. Select the correct part number for your application from the available options.