Automatic tensioners

Dayco’s automatic tensioners are developed specifically for the extreme demands of the heavy-duty industrial market and have been validated on numerous industrial and commercial vehicle applications. The belt tensioners, in combination with the company’s crankshaft dampers, belts and other components, work in concert at the system level to reduce vibration and friction losses, ensuring optimal efficiency is achieved. The tensioners feature the original flat-wire spring design, engineered to maximize operating range and reduce tension variation over the life of the accessory drive system. This innovative design is well-suited for this market due to low NVH characteristics, small axial packaging size and ability to cover more applications with fewer tensioner part numbers. For more information, visit

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