Gates K100600HD FleetRunner HD Micro-V Serpentine Belt for Mack Anthem/Int LT625

Vehicle Fitment

• 2000 Mack MR (L6, 11.9L Diesel)
• 2019-2021 Mack Anthem (L6, 10.8L MP7 Diesel)
• 2018-2022 International LT625 (L6, 12.4L A26 Diesel)
• 2018-2021 International RH613 (L6, 12.4L A26 Diesel)

Fitment Notes

• Replacement tensioner is recommended at time of belt installation if tensioner is equipped
• Distinct green overcord identifies this as the FleetRunner heavy-duty variant - not to be confused with the standard Gates K100600 belt
• Sold individually - one belt per listing

Features

• Patented EPDM compound with distinct green overcord engineered specifically for heavy-duty, fleet, and high-idle applications requiring extended belt life
• Superior flexibility and stability compared to standard serpentine belts, allowing reliable operation in tight pulley configurations under sustained load
• Withstands extreme prolonged operating temperatures without cracking, glazing, or loss of tensile strength
• Resistant to deterioration from ozone exposure and water-based coolant contact - common belt failure sources in commercial engine environments
• High-load capacity construction engineered to drive multiple accessories simultaneously in Class 8 and heavy-duty truck applications
• Consistently outperforms competing heavy-duty serpentine belts in fleet durability testing
• Low cost-per-mile design reduces fleet maintenance frequency and unplanned downtime

Specifications

• Part Number: K100600HD
• Series: FleetRunner Micro-V (Heavy Duty)
• Belt Type: K-Section Micro-V Serpentine (Multi-Rib)
• Rib Count: 10
• Effective Length: 60.0 inches
• Outside Circumference: 60.5 inches
• Top Width: 1.367 inches
• Cross-Section Designation: K
• Belt Material: EPDM Rubber
• Cord Material: Polyester
• Overcord Color: Green (FleetRunner HD identifier)
• Metric Equivalent: 10PK1525
• OE Comparison Rating: OE Improved

Included Components

• 1x Gates FleetRunner K100600HD Micro-V Serpentine Belt

Product Description

The Gates K100600HD is a FleetRunner Heavy-Duty Micro-V serpentine belt engineered for the demands of Class 8 commercial trucks and heavy-duty diesel applications. Featuring Gates' patented EPDM construction with a distinct green overcord, this belt is built to outlast standard serpentine belts in high-mileage, high-idle, and extreme temperature environments common to fleet operations. It fits the Mack MR, Mack Anthem, International LT625, and International RH613 platforms equipped with 10.8L to 12.4L diesel engines, and is a direct cross-reference for OE parts from Mack, Freightliner, Cummins, Volvo, and International Harvester.

With 10 ribs, a 60" effective length, and a 1.367" top width in the K-section profile, the K100600HD delivers a precise, rattle-free fit in OE pulley configurations. The EPDM compound resists cracking, ozone degradation, and coolant exposure while maintaining consistent flexibility and load capacity over extended service intervals - making it the recommended choice for fleet operators looking to reduce belt replacement frequency and unplanned roadside downtime.