Dayco's belt tensioner features a patented "flat spring" design that's engineered to provide less operating range variations in tension. This reduces the risk of premature failure due to high tension when a new belt is installed. It also lessens the risk of belt squeal and slippage, or poor accessory performance caused by low tension after the belt begins to stretch and wear.
Features & Benefits:
Patented flat spring provides less operating range variations in tension for longer life and quieter performance
Heavy-duty cast aluminum offers additional strength and less fatigue or distortion
Steel locator pin and pivot tube (where the application demands) provide additional support for critical torque requirements
Thermoplastic rubber "spring slot plug" keeps out harmful contaminants
Zinc coated mounting bolt (where included) resists rust, and is concentric for a more even degree of constant tension
Service Tip: Always replace belts and tensioners together. Old tensioners will reduce a belt's lifespan, and can lead to issues such as overheating, a dead battery, diminished power steering, or poor air conditioning performance.