The serpentine belt is one of the most important engine system parts that powers the alternator, power steering pump, air conditioning compressor and water pump. Idler/pulleys are complimentary components that provide tension and help guide the drive belt. Without these parts working in peak performance, a ripple effect of problems will occur throughout the entire engine system.

This Idler/Tensioner Pulley is designed for heavy-duty vehicles. It contains a serpentine pulley made from steel measuring 80 millimeters in diameter and 45.6 millimeters in width. Additionally, it offers a max belt width of 12 ribs, 1 bearing that measures 25 millimeters inside diameter.

Best fitment type: Volvo VNL/VNM models.

This product comes with a 24 months/150,000 miles warranty.

Dayco has provided customers with quality engine system parts for over 100 years. Dayco is best known for innovative products including their Gold Label® serpentine belts and No Slack® automatic belt tensioners and pulleys. When shopping for replacement engine system components for your heavy-duty truck, choose to buy from Dayco, quality that moves trucks forward!




  • Serpentine pulley
  • Made from steel measuring 80 millimeters in diameter
  • 45.6 millimeters in width
  • Max belt width of 12 ribs
  • 1 bearing that measures 25 millimeters inside diameter
  • Best fitment type: Volvo VNL/VNM models
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