Dayco 89683 Accessory Drive Belt Tensioner Assembly

The Dayco 89683 Accessory Drive Belt Tensioner Assembly is engineered to maintain constant and proper tension on serpentine belt drive systems for automotive and light truck applications. This tensioner features Dayco's patented flat spring design that provides less operating range variation compared to traditional coil spring tensioners, reducing the risk of premature accessory bearing failure caused by excessive tension.

Key Features:

• Patented flat spring design reduces belt noise and slippage while preventing poor performance from low tension
• Heavy-duty cast aluminum spring case and arm resists cracking, fatigue, and distortion for enhanced durability
• PTFE string wound within the spring dampens noise and resists abrasion
• Flat spring coating provides rust resistance for extended service life
• Thermoplastic rubber spring slot plugs and rubber O-ring seals help keep contaminants out
• Zinc-coated mounting bolts resist corrosion
• Steel pivot tube on select designs delivers enhanced stability

Built to outperform and outlast competitive OE parts, this Dayco tensioner endures tough operating conditions while promoting quieter performance and longer belt life. The precision-engineered design ensures reliable operation across a wide range of temperatures and driving conditions.