Dayco Automatic Accessory Belt Tensioner

The Dayco Automatic Accessory Belt Tensioner (also called a drive belt tensioner or serpentine belt tensioner) keeps the correct tension on the accessory drive belt. It helps the alternator, power steering pump, water pump and air conditioning compressor run reliably.

Key Features:

• Automatic spring-loaded design keeps belt tension consistent as the belt wears and as engine load changes
• Helps reduce belt slip, squealing, vibration and premature belt wear
• Built to meet or exceed OE performance requirements for fit, form and function
• Durable housing and pulley construction for long service life under heat and constant load
• Dayco is a well-known maker of belts, tensioners, pulleys and related drive system parts

Replacing a worn tensioner along with the drive belt helps restore proper belt tracking and accessory drive performance. Common signs of a failing tensioner include belt noise, a wobbling or worn pulley, uneven belt wear and a belt that is loose or fluttering. Select the specific part number that matches your application.