Dexter Idler Hub – 8 on 6-1/2" – 5/8" Studs – 9K–10K Pre-July 2009 Axles
Heavy-duty Dexter idler hub designed for compatible 9,000-lb and 10,000-lb general-duty axle applications manufactured before July 2009.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Brand | Dexter |
| Part Number | 008-288-17 |
| Product Type | Trailer idler hub |
| Axle Capacity Class | 9,000-lb to 10,000-lb general-duty axle applications |
| Bolt Pattern | 8 holes on a 6-1/2" bolt circle |
| Wheel Stud Size | 5/8"-18 |
| Inner Bearing | 387A |
| Outer Bearing | 25580 |
| Hub Configuration | Two-piece hub-and-drum system |
| Quantity | One idler hub |
Fitment / Application
| Category | Details |
|---|---|
| Axle Application | Dexter 9K–10K general-duty axles manufactured before July 2009 |
| Wheel-End Series | Older Dexter 288-series wheel-end applications |
| Brake Drum System | Designed for a two-piece configuration using a separate compatible brake drum, such as Dexter 009-044-01 where applicable |
| Bearing Match | Requires 387A inner and 25580 outer bearing sizes |
| Verification Method | Confirm the existing hub number, axle manufacture date, bearing numbers, bolt pattern and wheel-stud size |
| Important Note | Do not select this hub by axle capacity alone. Later 9K–10K Dexter axles may use a different wheel-end configuration. |
R&P Knowledge Hub
Compatibility: The Dexter 008-288-17 is intended for compatible 9,000-lb and 10,000-lb general-duty axle applications built before July 2009.
Wheel-End Design: This hub belongs to an older two-piece wheel-end arrangement in which the hub and compatible brake drum are separate components.
Bearing Requirements: The applicable bearing combination is a 387A inner bearing and a 25580 outer bearing.
Pre-Buy Check: Compare the existing hub casting or part number and verify the axle date, eight-lug bolt pattern, 6-1/2" bolt circle and 5/8"-18 wheel studs before ordering.
Important Fitment Note: This hub is intended for specific older Dexter 9K–10K general-duty axle applications manufactured before July 2009. Verify part number 008-288-17, axle manufacture date, 8 on 6-1/2" bolt pattern, 5/8"-18 studs, 387A inner bearing, 25580 outer bearing and the two-piece hub-and-drum configuration before installation. Confirm all separately required bearings, seals, hardware and brake-drum components before ordering.
Features
Heavy-Duty Axle Application
Designed for compatible Dexter 9,000-lb and 10,000-lb general-duty trailer axle systems.
8 on 6-1/2" Bolt Pattern
Features eight wheel-stud positions arranged on a 6-1/2" bolt circle.
5/8"-18 Wheel Studs
Configured with heavy-duty 5/8"-18 wheel studs for the specified wheel-end application.
Two-Piece Configuration
Designed for older wheel-end systems that use a separate compatible brake drum rather than a one-piece hub-and-drum assembly.
Included Components
| Quantity | Item |
|---|---|
| 1 | Dexter 008-288-17 idler hub with 5/8"-18 wheel studs |
