Pair of 12" x 3.5" Electric Trailer Brakes – 8,000 lb – 4 Bolt Mount
Complete brake set for one 8,000 lb trailer axle. Includes one left-hand (driver side) and one right-hand (passenger side) 12" x 3.5" electric brake assembly with 4-bolt backing plate mount. Designed for imported-style 8K axles using a cast 4-hole brake flange configuration.
R&P Knowledge Hub
This brake configuration is not used on standard Dexter 8,000 lb axles. It is commonly found on imported axle assemblies used by certain Quality Trailer, H&H, J&J, Lippert, and similar manufacturers.
Brake assemblies are side-specific. This listing includes both sides to service one complete axle. Confirm brake size (12" x 3.5") and 4-bolt mounting pattern before ordering.
Features
- 12" x 3.5" electric brake assemblies
- 8,000 lb axle rating
- 4-bolt backing plate mount
- Cast backing plate construction
- Auto-adjusting brake design
- Pre-assembled for direct replacement
- Includes one LH and one RH assembly
Specifications
| Specification | Detail |
|---|---|
| Brake Size | 12" x 3.5" |
| Axle Rating | 8,000 lb |
| Mounting Pattern | 4 Bolt |
| Orientation | Includes Left (LH) and Right (RH) |
| Adjustment Type | Automatic |
Verify brake size and mounting configuration before installation.
Rockwell 12" x 3.5" Electric Brake Family – 8,000 lb – 4 Bolt Mount
4739-L
4739-L + 4739-R
4739-R
