Dayco 89722 Accessory Drive Belt Tensioner Assembly

The Dayco 89722 is an automatic accessory drive belt tensioner assembly designed for automotive and light truck applications. As a direct-fit replacement, it is engineered to meet or exceed original equipment manufacturer (OEM) specifications, ensuring a proper installation without modification.

Dayco is a global leader in the research, design, manufacture, and distribution of engine drive system components. Their tensioners are built to endure demanding operating conditions while promoting quieter performance and extended service life for serpentine belt drive systems.

Key Features:

• Patented flat spring design provides less operating range variation compared to traditional coil spring tensioners
• Reduces risk of premature accessory bearing failure by maintaining consistent belt tension
• Durable construction using steel and thermoplastic materials for long-lasting performance
• OEM-grade fitment — meets or exceeds original equipment specifications
• Pre-assembled unit includes tensioner arm and idler pulley for a complete, ready-to-install replacement
• Designed for serpentine belt drive systems on automotive and light truck engines

The Dayco 89722 belt tensioner assembly is a reliable, OE-quality replacement that helps maintain proper serpentine belt tension, protecting the alternator, power steering pump, air conditioning compressor, and other belt-driven accessories from premature wear.