Dayco 89709 No Slack Automatic Belt Tensioner Assembly

The Dayco 89709 No Slack Automatic Belt Tensioner Assembly is engineered to maintain constant tension on serpentine belt drives, eliminating belt squeal, improper tracking, and accessory drive issues. This premium tensioner features Dayco's patented flat spring technology that compensates for belt stretch and wear while maintaining optimal tension throughout the belt's service life.

Key Features:

• Patented flat spring design provides consistent tension with less operating range variation
• Heavy-duty cast aluminum housing and arm resist cracking, fatigue, and distortion
• Smooth pulley design for quiet operation and extended belt life
• Steel locator pins and arm plates for enhanced durability
• Reduces risk of premature accessory bearing failure from over-tensioning
• Prevents belt noise, slippage, and poor performance from under-tensioning

Engineered to outperform and outlast OEM parts, the Dayco 89709 tensioner assembly is built with quality materials designed to handle the demanding conditions of modern engine compartments. This direct-fit replacement ensures proper belt tension for optimal performance of your alternator, air conditioning compressor, power steering pump, and other belt-driven accessories.