At a Glance
- >Fits Dexter 10K and 13D heavy-duty axles
- >Designed for 12-1/4" x 4" brake assemblies
- >8-lug configuration
- >8 on 6-1/2" bolt circle
- >Two-piece hub/drum service design
- Brand: Unbranded
- SKU: 99-27
Before You Order
Match the part number, measurements and connection points that apply to your trailer.
Fitment Check
| Bearings | Match inner and outer bearing numbers. |
|---|---|
| Seal | Match the seal number or dimensions. |
| Bolt Pattern | Verify the complete lug pattern. |
| Brake Size | Confirm when applicable. |
Product Details
8 on 6.5" Trailer Brake Drum – 12-1/4" x 4" – 10K Heavy Duty – Fits Dexter 10K & 13D
Part Number: 99-27
Heavy-duty replacement brake drum engineered for Dexter 10,000 lb and 13D general duty axle configurations using 12-1/4" x 4" electric or hydraulic brake assemblies. This listing includes the drum casting only and is designed for two-piece hub and drum systems commonly found on 10K heavy-duty axles.
Many 10K axles utilize a serviceable hub-and-drum configuration where the drum can be replaced independently of the hub. This allows cost-effective service when the drum friction surface is worn but the hub and bearing stack remain in serviceable condition.
R&P Knowledge Hub
The 99-27 brake drum represents the heavy-duty class above 7K trailer systems. While both 7K and 10K drums may share a 12-1/4" diameter, the 10K system increases shoe width from 3-3/8" to 4", significantly expanding braking surface area and thermal capacity.
This drum is typically used with Dexter 10K and 13D axles and replaces Dexter reference 009-027-01. It is not interchangeable with lighter-duty 12-1/4" x 3-3/8" systems. Correct brake width verification is critical before ordering.
Always confirm axle rating, brake size, and hub design (one-piece vs two-piece) prior to installation.
Features
- Fits Dexter 10K and 13D heavy-duty axles
- Designed for 12-1/4" x 4" brake assemblies
- 8-lug configuration
- 8 on 6-1/2" bolt circle
- Two-piece hub/drum service design
- Manufactured by MAT
- Direct replacement for Dexter 009-027-01
Specifications
| Specification | Detail |
| Brake Diameter | 12-1/4" |
| Brake Width | 4" |
| Stud Holes | 8 |
| Bolt Pattern | 8 on 6-1/2" |
| Axle Compatibility | Dexter 10K & 13D |
| Dexter Reference | 009-027-01 |
| Manufacturer | MAT |
Cross References
| OEM Reference | Alternate Format |
| 009-027-01 | 00902701 |
Important: This listing includes the brake drum only. Verify brake dimensions (12-1/4" x 4"), bolt pattern (8 on 6-1/2"), and hub configuration before installation.