Dayco 89289 Automatic Belt Tensioner

The Dayco 89289 No Slack Automatic Belt Tensioner is engineered to maintain constant tension on serpentine belt drives, ensuring optimal performance and reliability. This OE replacement tensioner is designed specifically for Range Rover applications and features Dayco's patented flat spring design that provides minimal operating range variations in tension compared to conventional designs.

Key Features:

• Patented flat spring design delivers consistent tension with less variation
• Teflon strip wound within the spring resists abrasion and extends service life
• Heavy-duty cast aluminum arm offers superior strength and reduced distortion
• Aluminum retainer ring locks spring case and arm together while sealing against corrosion
• Thermoplastic rubber spring slot plug keeps out harmful contaminants
• Lubricated nylon pivot tube bushing and spring bushing promote quieter operation
• Rubber O-ring seals against dust and grime intrusion
• Zinc-coated mounting bolt resists rust and provides concentric mounting for even tension distribution

Benefits:

• Reduces risk of premature accessory bearing failure
• Minimizes belt squeal, slippage, and poor accessory performance
• Extends belt and accessory component life
• Backed by Dayco limited warranty

This tensioner is sold individually and provides a direct OE replacement solution for maintaining proper serpentine belt tension in your vehicle's accessory drive system.