Dayco 89361 Automatic Accessory Belt Tensioner

The Dayco 89361 Automatic Belt Tensioner is an OE replacement component designed to maintain optimal belt tension for reliable accessory performance. This tensioner features Dayco's patented flat spring design that provides consistent tension throughout the belt's life cycle, reducing the risk of belt squeal, slippage, and premature accessory bearing failure.

Key Features:

• Patented Flat Spring Design: Delivers consistent tension to prevent belt slippage and accessory performance issues caused by low tension
• Corrosion-Resistant Spring: Flat spring is specially coated to resist rust and corrosion for long-lasting durability
• Heavy-Duty Cast Aluminum Construction: Both the spring case and tensioner arm are made from cast aluminum for superior strength and crack resistance
• Reduced Bearing Wear: Engineered design minimizes stress on accessory bearings, extending component life
• Spring-Type Pulley System: Provides automatic tension adjustment as belts wear over time
• OE Replacement Quality: Meets or exceeds original equipment specifications for reliable fit and function

This tensioner is sold individually and is designed as a direct replacement for worn or failed tensioners. The robust aluminum construction resists distortion under load, ensuring consistent performance in demanding engine compartment conditions.