Gates 90K-39456A FleetRunner Heavy-Duty Serpentine Belt Drive Component Kit

The Gates 90K-39456A FleetRunner Heavy-Duty Serpentine Belt Drive Component Kit provides everything needed to perform a complete serpentine belt drive system refresh on heavy-duty applications. This application-specific kit is designed for commercial fleets, work trucks, and vehicles operating in demanding conditions with high mileage, extended idle times, and extreme temperatures.

Complete System Solution:

• Includes FleetRunner heavy-duty serpentine belt(s) with patented EPDM construction and distinctive green overcord
• FleetRunner automatic belt tensioner engineered for extended service life
• Idler pulleys as required for the specific application
• Hardware and installation instructions included where applicable

FleetRunner Heavy-Duty Performance:

• Engineered to handle high mileage, prolonged idle times, and extreme operating temperatures
• Superior flexibility, stability, and load-carrying capacity in abusive environments
• Heavy-duty construction resists cracking and wear at temperature extremes
• Extends preventive maintenance schedules and reduces fleet downtime

FleetRunner kits are specifically designed to save fleet operators money by reducing service time and preventing comebacks. By replacing the entire serpentine drive system together, you eliminate the risk of premature belt failure caused by worn tensioners or pulleys. Some kits incorporate improvements over OE designs based on thousands of miles of heavy-duty maintenance data.