Goodyear Belts & Hoses 55581 Automatic Belt Tensioner

The Goodyear Belts & Hoses 55581 is an automatic belt tensioner (also called a serpentine belt tensioner or FEAD tensioner) for an engine's accessory belt drive. It continuously adjusts to keep the drive belt at the correct tension while the engine runs.

Key Features:

• Automatic tensioning mechanism adjusts belt tension as operating conditions change
• Helps prevent belt slippage, reduces noise and supports accessory drive efficiency
• Torsion-spring design with frictional damping absorbs crankshaft pulsing and protects belt life
• Built from durable materials such as steel, aluminum and high-strength polymers to hold up to daily driving
• Sealed, low-friction bearing technology reduces wear, noise and vibration
• Designed to meet or exceed OE standards

Worn bearings, incorrect tension and misalignment can reduce belt drive performance on high-mileage engines. Replacing the tensioner restores proper belt tension and helps the alternator, power steering pump and A/C compressor run as they should.