Dayco 89308 Automatic Accessory Belt Tensioner

The Dayco 89308 Automatic Belt Tensioner is engineered to maintain optimal belt tension throughout the life of your accessory drive system. This OE replacement tensioner features Dayco's patented flat spring design that delivers consistent tension while reducing the risk of accessory bearing failure, belt squeal, and slippage that can lead to poor accessory performance.

Key Features:

• Patented flat spring design maintains proper belt tension and reduces wear on accessory bearings
• Rust-resistant coated flat spring for extended service life
• Heavy-duty cast aluminum spring case resists cracking under extreme temperatures and stress
• Heavy-duty cast aluminum arm provides additional strength and minimizes distortion
• Spring-type tensioner pulley ensures smooth, consistent operation
• Direct OE replacement for reliable fit and function

This tensioner automatically adjusts to compensate for belt stretch and wear, eliminating the need for periodic manual adjustments. The robust aluminum construction provides durability while keeping weight to a minimum. Sold individually.