Dayco 89600 Automatic Belt Tensioner Assembly

The Dayco 89600 automatic belt tensioner is engineered to maintain optimal serpentine belt tension throughout the life of your drive belt system. This heavy-duty tensioner assembly resolves common issues like belt squeal, improper tracking, and poor accessory performance caused by worn or failing tensioners.

Patented Flat Spring Design:

Unlike conventional tensioners with coil springs, the Dayco 89600 features an original patented flat spring design that provides less operating range variation. This innovative design reduces the risk of premature accessory bearing failure caused by excessive tension while preventing belt noise, slippage, and poor performance from insufficient tension. A PTFE string wound within the spring resists abrasion and dampens noise for quieter operation.

Premium Construction Features:

• Heavy-duty cast aluminum spring case and arm resist cracking, fatigue, and distortion
• Steel locator pins and arm plates for enhanced durability
• Steel pivot tube on specific designs for enhanced stability
• Premium thermoplastic rubber spring slot plugs keep contaminants out
• Rubber O-ring seals protect internal components
• Zinc-coated mounting bolts resist rust and corrosion

Performance Benefits:

The Dayco 89600 tensioner automatically compensates for belt stretch and wear by increasing torque transmission when needed while maintaining constant tension. This ensures optimal performance and extends belt life even in the toughest operating conditions. Built to outperform and outlast OEM parts, this tensioner assembly delivers reliable, quiet performance you can count on.