Dayco 89710 Automatic Belt Tensioner Assembly

The Dayco 89710 is an automatic accessory drive belt tensioner assembly designed for automotive and light truck applications. This precision-engineered component maintains constant tension on serpentine belt drives throughout the life of the belt, ensuring optimal performance of engine accessories.

Key Features:

• Automatic tensioning design eliminates manual adjustment requirements
• Patented flat spring design provides consistent operating range with minimal tension variation
• Reduces risk of premature accessory bearing failure and belt noise
• Lifetime lubricated bearings for long-lasting, dependable service
• Engineered to meet OEM specifications for form, fit, and function
• Serpentine belt configuration for accessory drive applications

This tensioner assembly is part of Dayco's No Slack line of automatic belt tensioners, designed to prevent belt slippage and ensure proper tension under all operating conditions. The assembly includes the tensioner mechanism, pulley, and mounting hardware needed for installation. Dayco's proven design helps maintain optimal belt performance, reducing the risk of belt noise, slippage, and premature wear on both the belt and accessory components.