Gates K061251HD Serpentine Belt - Accessory Drive

Gates FleetRunner HD Micro-V Belt K061251HD

The Gates FleetRunner Heavy Duty Micro-V Belt K061251HD is built for accessory drive systems that see constant load and long operating hours. It uses EPDM construction with a green overcord for added durability, flexibility, and belt stability in heavy-duty service.

For fleet maintenance and repair work, this serpentine belt supports dependable accessory drive performance on Ford Super Duty trucks and vans. The FleetRunner Heavy Duty Micro-V belt line is Gates’ heavy-duty belt family for demanding commercial applications where reduced downtime matters.

Key Features

• Part number: K061251HD
• 6-rib automotive V-ribbed belt design
• EPDM belt material for heavy-duty accessory drive use
• Polyester cord material for strength and stability
• OE Improved rating for upgraded service performance
• Effective length: 125.09 in. (3177 mm)
• Outside circumference: 125.66 in. (3192 mm)
• Top width: 0.807 in. (20 mm)
• Cross section: K

Product Details

Gates K061251HD is a heavy-duty serpentine belt engineered for accessory drive systems that require consistent grip and long service life. The EPDM construction helps the belt handle heat and wear, while the polyester cord supports dimensional stability under load. This belt is listed for 2006-2010 Ford E-350 Super Duty, accessory drive; 2006-2010 Ford F-250 Super Duty, accessory drive; and 2006-2010 Ford F-350 Super Duty, accessory drive. It is also noted as serpentine belt compatible with Deweze Hydraulic Pump applications on those vehicles. This part cross-references Continental 4061250 for the same application.

Common Issues This Belt Can Address

• Squealing or slipping from a worn accessory drive belt
• Cracking, glazing, or rib wear on the existing serpentine belt
• Loss of accessory drive performance under heavy-duty operating conditions
• Belt stretch or instability in high-load fleet service
• Replacement needs during scheduled maintenance on Ford Super Duty trucks and vans

Installation Notes and Tips

Verify the belt routing against the vehicle’s accessory drive diagram before installation. Inspect pulleys, tensioner operation, and accessory alignment so the new belt can track correctly. Confirm the part number K061251HD and match the belt dimensions to the application before final installation. For Ford E-350 Super Duty, F-250 Super Duty, and F-350 Super Duty models, use the listed accessory drive fitment only.

Quality Assurance

Gates FleetRunner Heavy Duty Micro-V belts are built for demanding fleet use with EPDM construction and an OE Improved design rating. The product line is engineered to reduce downtime and support longer service life in heavy-duty drive systems.