Dayco Automatic Belt Tensioner with Flat Spring Design

The Dayco automatic belt tensioner with flat spring design keeps the correct tension on your serpentine or accessory drive belt. This drive belt tensioner is also known as an automatic tensioner assembly or serpentine belt tensioner. It helps the belt drive the alternator, power steering pump, water pump and air conditioning compressor reliably.

Key Features:

• Flat spring design: Applies steady, controlled spring force to the belt through the tensioner's range of travel.
• Automatic tension control: Adjusts continuously as the belt wears and stretches, so no manual adjustment is needed.
• Vibration damping: Helps limit belt flutter and noise, which supports smoother accessory drive operation.
• Quality construction: Built with a durable housing and pulley assembly intended for long service life under under-hood heat and load.
• Dayco quality: Dayco is a long-established supplier of belt drive components to the automotive aftermarket and to OE manufacturers.

A worn tensioner can cause belt slip, squealing, premature belt wear and poor accessory performance. Replacing the tensioner when you replace the belt helps restore proper belt drive operation. Choose the specific part number that matches your application.