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PAIR-Rockwell 10K Electric Trailer Brake 12-1/4" x 3-1/2" 5 Bolt 4738-L+R 10,000 (77-1210RW-PAIR)

$225.34
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R & P Carriages

Electric Trailer Brake Assemblies — 10,000 lb Axle
12-1/4" × 3-1/2" • 5-Bolt • Rockwell Compatible

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.

What’s Included

  • (1) Left-hand electric brake assembly — driver side
  • (1) Right-hand electric brake assembly — passenger side
  • Fully assembled backing plates
  • Brake shoes, magnets, springs, and adjuster hardware installed

Specifications

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.

77-1210RW-PAIR 4738-L 4738-R 10k electric brake 12.25 x 3.5 electric brakes rockwell brake assemblies trailer brake backing plate pair