12-1/4" × 5" Self-Adjusting Electric Brake Assemblies · 12K–15K · 7-Bolt
Part Number: BK-12KHDE-SET2
This listing is for a complete axle set of heavy-duty, self-adjusting electric brake assemblies designed for 12,000–15,000 lb trailer axles using 12-1/4" × 5" brake drums.
These brakes feature a self-adjusting (Nev-R-Just style) design, eliminating the need for manual shoe adjustments and maintaining consistent braking performance over time.
What’s Included
- (2) Left-hand brake assemblies
- (2) Right-hand brake assemblies
One set services one axle.
Features
- Self-adjusting electric brake design (no manual adjustment required)
- Heavy-duty construction for 12K–15K axle ratings
- Standard 7-bolt mounting pattern
- Complete backing plate assemblies (hardware included except mounting bolts)
- Aftermarket replacement for OEM Dexter assemblies
Specifications
| Specification | Detail |
|---|---|
| Brake Size | 12-1/4" × 5" |
| Brake Type | Electric · Self-Adjusting |
| Axle Rating | 12,000–15,000 lb |
| Mounting Pattern | 7-Bolt |
| Drum Compatibility | Dexter 9-28 · Lippert (LCI) 12K drums |
| Electrical | 2-wire magnet (polarity not sensitive) |
Fitment & Compatibility
- Fits Dexter and Lippert 12K–15K trailer axles
- Designed for use with Dexter 9-28 brake drums
- Will NOT fit older 4-bolt brake mounts
These assemblies replace the following OEM Dexter parts:
- 023-442-00 (K23-442-00)
- 023-443-00 (K23-443-00)
Backing plate color and actuator arm finish may vary by production batch.