Heavy Duty Decouplers

SKU: DECHD Category:


Applications: Trucks, buses, construction equipment, agricultural machinery

With over a decade of success in Light Vehicle hybridization and state of the art decoupler technology, Dayco now brings the technology to the heavy-duty applications.

To eliminate engine vibration, optimize noise, and improve fuel economy, Dayco is the only brand that offers a premium package of complete FEAD (Front End Accessory Drive) system solutions including decouplers, dampers, tensioners, idlers/pulleys, and belts, all in one place with world-class global R&D capabilities and local manufacturing footprints and addresses the needs of truck and premium car manufacturers to reduce carbon footprints.

Dayco’s decouplers are designed to integrate a Rubber or Viscous torsional vibration damper for wide range of Heavy-Duty Diesel Engine applications up to 20L and features a spring isolator for the accessory drive for smooth power transmission and is suitable for use on belt start-stop drives.


  • Designed to integrate a Rubber or Viscous torsional vibration damper
  • Improved system efficiency and reduced carbon footprints (CO2)
  • Optimal vibration isolation and improved NVH (noise, vibration, and harshness)
  • Increased lifetime of accessory drive components resulting in enhanced system uptime
  • Reduced total cost of ownership

Value Add to Customers:

  • World-class global R&D and testing capabilities with local manufacturing footprints
  • Complete system solution provider and full FEAD support: Decouplers, Dampers (Rubber & Viscous), tensioners, idlers, pulleys, and belts from the same supplier
  • Delivering to largest engine and truck manufacturers across the globe
  • Strong competitiveness in heavy duty segment with its premium bundle of decouplers and viscous dampers

Additional information

Available Markets:

All Markets


Dayco Heavy-Duty Decouplers Technical Sheet

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