Dayco 84061 No Slack Automatic Timing Belt Tensioner Kit

The Dayco 84061 No Slack Automatic Belt Tensioner is a precision-engineered timing belt tensioner designed to maintain constant, consistent tension on timing belt drives. Purpose-built as a direct-fit OE-style replacement, this component helps eliminate belt noise, slippage, and the premature accessory bearing wear that can result from improper belt tension.

At the heart of the No Slack design is Dayco's original, patented flat spring technology, which provides less operating range variation in tension compared to conventional coil spring tensioners. This means the tensioner automatically compensates for belt stretch and wear over time, keeping tension in the optimal range throughout the belt's service life.

Key Features:

• Flat spring design delivers consistent, automatic tensioning with minimal variation — reducing both over-tension and under-tension conditions
• Heavy-duty cast aluminum spring case and arm resist cracking and fatigue for long service life
• Steel pivot tube (where application demands) provides additional strength for critical torque requirements
• PTFE strip wound within the spring resists abrasion and dampens noise
• Coated flat spring offers high resistance to rust and corrosion
• Thermoplastic rubber spring slot plug helps keep harmful contaminants out of the mechanism
• Lubricated nylon pivot tube bushing and spring bushing promote quieter operation
• Rubber O-ring seal protects against dust and grime intrusion
• Zinc-coated mounting bolt resists rust and ensures even, consistent clamping

The Dayco 84061 is a complete kit solution, making it an ideal choice for timing belt service intervals. Dayco tensioners are built to OEM performance standards and engineered to outperform and outlast competitive replacement parts.