M-Parts Brake Drum for 10K GD & 13G Axles
12.25" × 3.375" • After July 2009
Part Number: RP9-123-01
This M-Parts machined brake drum replaces Dexter 009-123-03 and is commonly used on 9K, 10K General Duty, and 13G axles manufactured after July 2009. It is the correct drum for newer Dexter hub/brake systems using the 8-stud, 7.5" bolt circle pattern and 12.25" × 3.375" brake assemblies.
Features
- Direct replacement for Dexter 009-123-03
- Used on Dexter 9K, 10K GD, and 13G axles (post-2009)
- Fits 12.25" × 3.375" brake assemblies
- 8 lug bolt circle — 7.5" pattern
- High-grade machined drum
Specifications
| Specification | Details |
|---|---|
| Brake Diameter | 12.25" |
| Brake Width | 3.375" |
| Bolt Pattern | 8 studs × 7.5" circle |
| Axle Compatibility | 9K, 10K GD, 13G (after July 2009) |
| Replaces Dexter | 009-123-03 |
Notes
This listing is for the drum only. Other hub or brake components shown in reference diagrams are not included.
Dexter made major changes to 9K and 10K GD axle components in 2009. Older 8-288 / 8-232 / 8-256 series two-piece drums will not interchange with this post-2009 drum. Always verify your axle tag and measurements before ordering.