Description
The TruRyde® 8K Axle 12-1/4″ Hub/Drum & Electric Brake Kit with Defender Aluminum Oil Cap & Timken® Bearings (BK8K580-F-TK) is a complete heavy-duty brake and hub assembly for 8,000-lb. trailer axles. This kit includes a pair of 12-1/4″ x 3-3/8″ hubs/drums with Defender aluminum oil caps and Timken® bearings, along with a pair of self-adjusting electric brake assemblies for reliable stopping power.
Part Number: BK8K580-F-TK. TruRyde® 8K brake & hub kit with Defender aluminum oil cap & Timken® bearings.
Key Features
- Part Number: BK8K580-F-TK
- Brand: TruRyde®
- Capacity: 8,000 lbs. trailer axles
- Hub/Drum: Pair of 12-1/4″ x 3-3/8″, 8 studs on 6.5″ bolt circle, 5/8″-18 studs, using Genuine Timken inner bearing 25580 and outer bearing 02475, seal, & Defender aluminum oil cap. Works with oil or grease.
- Brakes: Pair of 12-1/4″ x 3-3/8″ electric forward self-adjusting brakes, 4-hole mounting, one left & one right, SAE friction material
- Compatibility: Works with Dexter, Rockwell, or Lippert 8,000-lb. trailer axles using a 12-1/4″ x 3-3/8″ electric or hydraulic backing plate with a four-hole brake flange (compatible with Dexter® 008-285-10)
This TruRyde® 8K axle brake and hub kit with Defender aluminum oil cap and Timken® bearings is a complete, ready-to-install solution manufactured to industry standards for reliable braking and wheel performance. Ideal for heavy-duty utility trailers, equipment haulers, and cargo trailers.
Questions about this TruRyde brake kit? Call our trailer experts at 1-800-866-3336.
Browse 8K brake and hub kits.
| Part No | Quantity | Description |
| RVD-8K-865-580 | 2 | Drum, 8K, 865, 5/8-18 Studs, Cupped & Studded |
| DC-O-288 | 2 | TruRyde Defender Aluminum Oil Cap |
| 25580-TK | 2 | Timken Bearing Cone (25580) |
| 02475-TK | 2 | Timken Bearing Cone (02475) |
| BK-8KE-01 | 1 | 12-1/4″ x 3-3/8″ Self-Adjusting, 8K Electric LH |
| BK-8KE-02 | 1 | 12-1/4″ x 3-3/8 Self-Adjusting, 8K Electric RH |
| 12NFN | 8 | 1/2″-20 Hex Nut |
| 12LW | 8 | 1/2″ Lock Washer |
| 007-251-00 | 8 | Bolt Hex Head 1/2-20 x 1.50 |







