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Gates 90K-38667HDE Serpentine Belt Drive Component Kit
| Brand | Gates 90K-38667HDE |
|---|---|
| Outside Circumference | 106.5 |
| Outside Circumference | 1651 |
| Outside Circumference | 2705 |
| Outside Circumference | 65 |
| Belt Top Width | 1.087 |
| Belt Top Width | 1.367 |
| Belt Top Width | 28 |
| Belt Top Width | 35 |
| Belt 1 Outside Circumference (in) | 65 |
| Belt 1 Outside Circumference (mm) | 1651 |
| Belt 1 Part Number | K100643hd |
| Belt 2 Outside Circumference (in) | 106.5 |
| Belt 2 Outside Circumference (mm) | 2705 |
| Belt 2 Part Number | K081059hd |
| Contents | 2 belts, tensioner, 2 idlers |
| Idler Pulley 1 Part Number | 36742 |
| Idler Pulley 2 Part Number | 36742 |
| Tensioner Assembly Part Number | 38667 |
| Fits | —13 vehicles |
Complete service kit. Includes belts, tensioner, and idlers in one package.
Heavy-duty design. Built for demanding serpentine system service.
Improved OE design. Refines factory-style engineering to solve known issues.
Cross-references Gates 90K-38667HDE for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Accessory Belt Drive Kit for Fleet Service
Gates 90K-38667HDE is a serpentine belt drive component kit built for accessory drive system service on heavy-duty fleets. It brings together the key wear items needed to refresh the belt drive system in one package, helping reduce downtime and keep maintenance straightforward.
For fleet maintenance on Ford F-250 and Ford F-350 applications, this kit supports a complete serpentine system service with matched components from the Gates FleetRunner Heavy Duty line.
Key Features
- Gates Accessory Belt Drive Kit for serpentine system service
- Part number 90K-38667HDE
- Includes belt drive components for a coordinated replacement
- Contents: 2 belts, tensioner, 2 idlers
- Belt 1: K100643HD, 65 in. outside circumference, 1651 mm
- Belt 2: K081059HD, 106.5 in. outside circumference, 2705 mm
- Idler pulley part number 36742
- Tensioner assembly part number 38667
- FleetRunner Heavy Duty product line for demanding maintenance schedules
Product Details
The Gates FleetRunner Heavy Duty serpentine kits are organized to simplify proper accessory drive service by combining the main wear components into one service kit. Gates also notes that some kits incorporate updates over OE designs based on long-term heavy-duty maintenance experience, which can help address issues seen in real-world fleet operation. This makes 90K-38667HDE a practical choice for technicians servicing Ford F-250 and Ford F-350 trucks that need a complete belt drive refresh.
This part cross-references Gates (e.g., 90K-38667HDE) for the same application.
Common Issues This Kit May Address
- Squealing or chirping from worn serpentine drive components
- Belt cracking, glazing, or loss of tension
- Idler pulley noise or rough rotation
- Tensioner wear that affects belt tracking and load control
- Repeated accessory drive service from mixed-age components
Installation Notes and Tips
Inspect the belt routing, pulley alignment, and accessory drive surfaces before installation. Replace worn or noisy components together so the new belts and pulleys operate under consistent load. Verify belt lengths and pulley part numbers against the existing system before service, especially on Ford F-250 and Ford F-350 fleet applications.
Quality Assurance
Gates FleetRunner Heavy Duty kits are built for professional fleet maintenance and are based on Gates’ experience with heavy-duty serpentine system service. The kit format helps technicians complete accessory drive repairs with the correct matched components in one service package.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2019 | Western Star | 5700XE | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2018 | Freightliner | Cascadia | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2018 | Western Star | 5700XE | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2017 | Freightliner | Cascadia | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2017 | Freightliner | Cascadia | 14.8L | L6 | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2017 | Western Star | 5700XE | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2016 | Freightliner | Cascadia | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2016 | Freightliner | Cascadia | 14.8L | L6 | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2016 | Western Star | 5700XE | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2015 | Freightliner | Cascadia | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2014 | Freightliner | Cascadia | — | — | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
| 2014 | Freightliner | Cascadia | 15.6L | -6 | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/106 1/2" Belt O.C.; Accessory Belt Drive Kit |
| 2014 | Freightliner | Cascadia | 14.8L | L6 | DIESEL | {K100643HD, K081059HD, 38667, 36742, 36742}; W/Variable Speed Water Pump; Accessory Belt Drive Kit |
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