Gates K100594HD FleetRunner Micro-V Belt | Heavy-Duty Serpentine Belt

The Gates K100594HD FleetRunner Micro-V Belt is engineered for demanding heavy-duty applications where reliability, long service life, and consistent accessory drive performance are essential. Designed as a premium replacement serpentine belt, this FleetRunner belt helps deliver dependable power transfer to critical engine-driven components while standing up to the heat, vibration, and constant load changes common in commercial and vocational vehicles. For fleet operators, diesel technicians, and owners who depend on their equipment every day, choosing a high-quality belt like this can help reduce downtime, improve maintenance intervals, and support more predictable performance under harsh operating conditions. Its precision-engineered Micro-V profile is built to maintain proper pulley engagement and stable tracking, making it a smart upgrade over lower-grade replacement belts.

Accessory drive belts play a vital role in keeping essential systems operating correctly, including the alternator, water pump, air conditioning compressor, power steering pump, and other driven accessories. When a belt begins to wear, glaze, crack, or stretch, it can lead to charging issues, overheating, steering concerns, belt noise, and unexpected roadside failures. The Gates K100594HD FleetRunner Micro-V Belt is designed to help prevent those problems by using advanced belt construction that resists heat-related degradation and maintains tension more effectively over time. That makes it especially valuable for vehicles that spend long hours on the road, operate in high-temperature environments, or carry heavy accessory loads.

One of the biggest advantages of selecting a Gates FleetRunner belt is the combination of OE-level fitment and severe-duty durability. The belt’s multi-rib Micro-V design helps maximize surface contact with the pulley system, improving grip and reducing slippage during operation. Precision-ground sidewalls contribute to quieter performance and more consistent belt tracking, while the premium rubber compound and high-strength tensile cords help resist cracking, stretching, and premature wear. These features are particularly important for commercial trucks, buses, vocational equipment, and other diesel-powered platforms where accessory drive reliability directly affects productivity and operating costs.

For preventative maintenance, replacing an aging belt before it fails is one of the most cost-effective ways to protect your vehicle or equipment. A fresh Gates FleetRunner Micro-V Belt can help restore proper accessory drive performance, reduce noise, and provide peace of mind for drivers and fleet managers alike. Whether you are servicing a work truck, maintaining a commercial fleet, or replacing a worn belt during scheduled maintenance, the K100594HD offers the durability and confidence expected from Gates. Be sure to browse our Belts, Pulleys & Accessory Drive Components category for additional tensioners, idler pulleys, and accessory drive parts that help keep your system operating at its best.

Specifications & Features
Manufacturer: Gates Corporation
Product Name: Gates K100594HD FleetRunner Micro-V Belt
Part Number: K100594HD
Product Type: FleetRunner Micro-V / Serpentine Belt
Belt Profile: Micro-V
Rib Count: 10-Rib
Effective Length: 59.4 inches (approx.)
Belt Width: 1.38 inches (approx.)
Construction Material: Premium EPDM Rubber Compound
Tensile Cord Material: High-Strength Tensile Cords
Color: Black
Precision-Ground Sidewalls
High Flexibility Design
Heat Resistant Construction
Oil Resistant Construction
Crack Resistant Materials
Reduced Belt Noise
Enhanced Pulley Engagement
Improved Tension Retention
Stable Belt Tracking
Severe-Duty / Fleet-Grade Construction
Suitable for OE Replacement Applications
Compatible with Heavy-Duty Accessory Drive Systems
Installation Difficulty: Moderate
Professional Installation Required: No
Weight: Approximately 0.60 lbs.
Vehicle Compatibility: Application Specific (Select Heavy-Duty Diesel Trucks, Buses, and Vocational Equipment)
Year Compatibility: Varies by Vehicle Application
Intended Use: Accessory Drive Replacement, Preventative Maintenance, Fleet Service, Commercial Vehicles, Diesel Applications, Vocational Equipment