Match the part number, measurements and connection points that apply to your trailer.
| Hub Face | Measure hub face to hub face. |
|---|---|
| Spring Center | Measure mounting centers and confirm perch configuration. |
| Capacity | Match the required axle rating. |
| Brakes | Confirm brake type and flange configuration. |
SKU: 77-1210RW-PAIR
Complete left- and right-hand electric brake assembly pair for 10,000 lb trailer axles. Designed for axles using Rockwell-style brake mounting patterns.
This set includes fully assembled backing plates with shoes, magnets, springs, and adjuster hardware installed — ready to mount to an existing brake flange.
| Axle Rating | 10,000 lb |
| Brake Type | Electric |
| Brake Size | 12-1/4" × 3-1/2" |
| Mounting Pattern | 5-bolt brake flange |
| Compatibility | Rockwell-style axles |
| Mounting Studs | 1/2"-20 thread (pre-installed) |
| Hardware Included | No |
Fitment Note: Designed for 10K axles using Rockwell-compatible 5-bolt brake flanges. Verify brake size, flange pattern, and mounting hardware requirements before installation.
