Dayco Automatic Belt Tensioner

Designed to maintain constant tension on serpentine belt drives, the Dayco® No Slack™ Automatic Belt Tensioner is an essential component for your vehicle's engine accessories.

• Patented "flat spring" design reduces operating range variations in tension
• Lessens the risk of premature accessory bearing failure
• Reduces belt squeal, slippage, and poor accessory performance
• Teflon® strip wound within the spring resists abrasion
• Coated flat spring resists rust
• Steel locator pin (where applicable) for added strength
• Heavy-duty cast aluminium spring case resists cracking and fatigue
• Heavy-duty cast aluminium arm offers additional strength and less distortion
• Aluminium retainer ring locks the spring case and arm together, sealing against corrosion
• Steel pivot tube (where applicable) provides additional strength
• Thermoplastic rubber spring slot plug keeps out contaminants
• Lubricated nylon pivot tube bushing and spring bushing for quieter performance
• Rubber O ring seals against dust and grime
• Zinc coated mounting bolt resists rust and provides even tension
• Available with either a glass-filled polymer or steel pulley with dust cover
• Meets OEM performance standards
• 2 Years/40,000km warranty