Dayco 89267 Automatic Serpentine Belt Tensioner

The Dayco 89267 No Slack Series Automatic Belt Tensioner is engineered to maintain constant tension on serpentine belt drives, ensuring reliable performance and extended component life. This precision-designed tensioner features Dayco's patented flat spring design that provides minimal operating range variations in tension, reducing the risk of premature accessory bearing failure, belt squeal, slippage, and poor accessory performance.

Key Features:

• Patented flat spring design with integrated Teflon strip wound within the spring to resist abrasion and wear
• Heavy-duty cast aluminum arm construction offers superior strength and minimal distortion under load
• Aluminum retainer ring locks the spring case and arm together while sealing against corrosion
• Thermoplastic rubber spring slot plug prevents harmful contaminants from entering the mechanism
• Lubricated nylon pivot tube bushing and spring bushing promote quieter, smoother operation
• Rubber O-ring seal protects against dust and grime infiltration
• Zinc-coated mounting bolt resists rust and provides concentric mounting for more even, constant tension
• Aluminum construction for optimal strength-to-weight ratio

This OE replacement tensioner is designed specifically for truck applications and is sold individually. Backed by Dayco's mileage warranty, the 89267 tensioner delivers the quality and reliability expected from a leading belt drive system manufacturer.