Gates K061373HD Serpentine Belt

Gates FleetRunner HD Micro-V Belt K061373HD

The Gates FleetRunner Heavy Duty Micro-V Belt K061373HD is built for accessory drive systems that see sustained load and frequent operation. It uses EPDM construction with a polyester cord and a green overcord design to improve durability, flexibility, and belt stability in heavy-duty service.

Compatible With 2010-2016 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, Chevrolet Express 2500, Chevrolet Express 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications listed below. This part cross-references Dayco 5061373 for the same application.

Key Features

• Part number: K061373HD
• FleetRunner Heavy Duty Micro-V Belt for accessory drive systems
• 6-rib K-section V-ribbed belt design
• EPDM belt material for heavy-duty service life
• Polyester cord construction for strength and dimensional stability
• OE Improved rating for applications that call for an upgraded replacement
• Effective length: 137.32 in. (3488 mm)
• Outside circumference: 137.875 in. (3502 mm)

Product Details

Gates FleetRunner Heavy Duty Micro-V belts are engineered for demanding fleet and commercial use where accessory drive reliability matters. The K061373HD uses EPDM construction and a distinct green overcord to improve durability, flexibility, and stability under heavy-duty operating conditions. With a 6-rib profile and K-section design, this serpentine belt is sized for the listed dual-alternator applications on Chevrolet Silverado HD, GMC Sierra HD, and Chevrolet Express vans.

Use K061373HD when replacing a worn belt on 2010-2016 Chevrolet Silverado 2500 HD and Silverado 3500 HD, 2010-2014 GMC Sierra 2500 HD and Sierra 3500 HD, and 2015 Chevrolet Express 2500 and Express 3500 models with the specified alternator configurations. The Gates K061373HD is also referenced by Continental 4061373F and Dayco 5061373.

What This Belt Helps Address

• Squealing or chirping from a worn serpentine belt
• Cracking, glazing, or fraying on the belt surface
• Loss of accessory drive tension and belt tracking issues
• Reduced reliability in dual-alternator heavy-duty service
• Drive belt replacement needs on high-mileage fleet vehicles

Installation Notes and Tips

• Verify the vehicle year, make, model, and alternator configuration before ordering.
• Inspect pulleys, tensioners, and idlers for wear before installing the new belt.
• Confirm belt routing against the underhood diagram or service information.
• Check the belt path for contamination, misalignment, or damaged accessory components.
• Match the belt length and rib count to the application listed for your Chevrolet Silverado HD, GMC Sierra HD, or Chevrolet Express.

Quality Assurance

Gates FleetRunner belts are built for heavy-duty accessory drive service with EPDM construction, polyester cord reinforcement, and OE Improved positioning for the listed applications. The K061373HD is engineered to meet the demands of fleet maintenance and long-service intervals in compatible Chevrolet and GMC HD platforms.