• Product Details
    Part # K040388HD
    Product # 85550177
    Description K040388HD FLEETRUNNER MICRO-V
    UPC 770075341635
    Effective Length (in) 38.78
    Effective Length (mm) 985
    Number of Ribs 4
    Outside Circumference (in) 39.347
    Outside Circumference (mm) 999
    Section K
    Top Width (in) 0.56
    Top Width (mm) 14
  • Packaging details
    Customer Pack 1
    Weight (lbs.) 0.15
  • Fits models

Features and Benefits

  • Unique undercord notch pattern offers increased flexibility for smaller diameter pulleys.
  • Outperforms the competition on the most troublesome drives.
  • Problem-solver designed for the toughest applications.
  • Consistently outperforms all competitors.
  • Oil and heat-resistant.

Did You Know?

Heavy-Duty Serpentine System diagnostics start with the tensioner. Many of the symptoms that indicate a problem with the heavy-duty serpentine belt drive system – squeal, vibration, and excessive belt wear – can be traced to a worn or failed tensioner. That’s why the tensioner is the best place to start when diagnosing trouble.

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