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FleetRunner® Micro-V® Belts

Gates® FleetRunner® Heavy Duty Micro-V® belts are engineered to save your fleet money and lost service time. Patented EPDM construction with distinct green overcord built specifically for more durability, superior flexibility, stability, and longer life on heavy-duty drives. Haul more. Drive longer.

  • Patented material provides peak performance at prolonged extreme operating temperatures.
  • Heavy-duty construction resists cracking and wear, even at extreme temperatures.
  • Special compound provides unmatched flexibility, stability, load carrying capacity and belt life.

All Parts

1-10 of 528 Items
Part # Product # Description Num Ribs Section Effective Length (in) Effective Length (mm)
K040378HD 85550064 K040378HD FLEETRUNNER MICRO-V 4 K 37.89 962
K040388HD 85550177 K040388HD FLEETRUNNER MICRO-V 4 K 38.78 985
K040425HD 85550477 K040425HD FLEETRUNNER MICRO-V 4 K 42.55 1081
K040430HD 85550072 K040430HD FLEETRUNNER MICRO-V 4 K 43.16 1096
K040445HD 85550184 K040445HD FLEETRUNNER MICRO-V 4 K 44.62 1133
K040745HD 85550042 K040745HD FLEETRUNNER MICRO-V 4 K 74.52 1893
K040762HD 85550955 K040762HD FLEETRUNNER MICRO-V 4 K 76.25 1937
K050323HD 85550600 K050323HD FLEETRUNNER MICRO-V 5 K 32.39 823
K050336HD 85550607 K050336HD FLEETRUNNER MICRO-V 5 K 33.75 857
K050340HD 85550633 K050340HD FLEETRUNNER MICRO-V 5 K 34.12 867
1-10 of 528 Items

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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