Gates 90K-38667HDK Serpentine Belt Drive Component Kit

Accessory Belt Drive Kit for Heavy Duty Service

Gates 90K-38667HDK is a FleetRunner Heavy Duty serpentine belt drive component kit built for complete accessory drive system service. It brings together the belt drive components needed to service the serpentine system in one package, helping reduce downtime on fleet vehicles and heavy duty trucks.

For fleet maintenance on Ford, Freightliner, and other heavy duty applications, this kit supports a more complete service approach by combining matched components for the accessory drive system. Gates 90K-38667HDK is organized around the belt drive layout so technicians can replace wear items together instead of servicing them one at a time.

Key Features

• Accessory Belt Drive Kit from Gates FleetRunner Heavy Duty
• Serpentine belt drive component kit for heavy duty maintenance
• Contents include 2 belts, tensioner, and 2 idlers
• Belt 1 part number: K100810HD, 81.61 in. outside circumference, 28 mm top width
• Belt 2 part number: K081062HD, 106.875 in. outside circumference, 35 mm top width
• Tensioner assembly part number: 38667
• Idler pulley part numbers: 36742 and 36742
• Built around Gates FleetRunner Heavy Duty serpentine kit service requirements

Product Details

This Gates accessory drive kit is intended for vehicles that use a dual-belt serpentine system with matching tensioner and idler components. The included belt dimensions, pulley references, and tensioner assembly number make it easier to match the correct service parts for the application. For fleet maintenance teams working on Ford and Freightliner equipment, the 90K-38667HDK helps streamline accessory drive system repair and replacement.

Gates FleetRunner Heavy Duty kits are organized to simplify proper serpentine system service and can incorporate design updates based on long-term heavy duty maintenance experience. That makes this kit a practical choice when replacing worn belts, a noisy tensioner, or idler pulleys in the accessory drive system.

What It Helps Address

• Squealing or slipping serpentine belts
• Worn tensioner performance in the accessory drive system
• Idler pulley noise or rough operation
• Uneven belt wear from aging drive components
• Downtime caused by piecemeal belt service on fleet vehicles

Installation Notes and Tips

Verify belt routing, pulley alignment, and tensioner condition before installation. Compare the belt outside circumference and top width to the original components, and confirm the tensioner assembly and idler pulley part numbers against the vehicle service information. For Ford and Freightliner applications, match the accessory drive layout exactly before final assembly.

Because this is a serpentine belt drive component kit, inspect adjacent pulleys and accessory drive hardware for wear before completing service. Proper alignment and correct belt routing are important for long-term belt life and stable operation.

Quality Assurance

Gates is a recognized name in accessory drive system components, and the FleetRunner Heavy Duty line is focused on service parts for demanding fleet maintenance schedules. Part number 90K-38667HDK is built as a complete serpentine belt drive service kit for heavy duty applications.

This part cross-references Gates (e.g., 90K-38667HDK) for the same application.