Gates K040378HD Heavy-Duty Micro-V Serpentine Belt

Upgrade your fleet with the Gates K040378HD FleetRunner Micro-V Serpentine Drive Belt, engineered for heavy-duty performance and long-lasting durability. Built with patented EPDM construction and a distinctive green overcord, this belt delivers superior flexibility, stability, and resistance to extreme temperatures. Its heavy-duty design ensures exceptional wear resistance, reducing cracks and downtime while maximizing operational efficiency.

Designed to outperform standard serpentine belts, the Gates FleetRunner belt is a problem-solving solution for the toughest applications. Whether hauling heavy loads or driving long distances, this belt consistently delivers peak performance, longer belt life, and unmatched load-carrying capacity—making it the ideal choice for fleet owners prioritizing reliability and cost savings.