Need to replace a worn brake assembly and get back on the road? This self-adjusting brake assembly helps maintain proper brake adjustment over time for more consistent braking performance on compatible heavy-duty trailer axles.
When a brake assembly is worn out, rebuilding individual brake parts can turn into extra time under the trailer. This left-hand assembly gives your compatible medium-duty trailer axle a complete brake assembly replacement, keeping the repair focused on swapping the assembly instead of chasing separate internal components.
Manual brake adjustments are one of those trailer jobs most owners would rather not repeat. This self-adjusting design maintains proper brake adjustment as components wear, which keeps your braking performance more consistent and eliminates the need to crawl back under the trailer for manual brake adjustments.
Brake fit matters before the old assembly comes off. This assembly is for the left hand, or driver's side, and matches 12-1/4" diameter x 3-3/8" wide brakes with a 4-bolt mounting flange pattern on 8,000 lb axles. Mounting bolts and hardware are sold separately (BRKH12), so your install plan needs to account for those before the trailer's apart.
If you're replacing both brake assemblies at the same time, you don't have to hunt for each side separately. We offer a kit with both the right-hand and left-hand assemblies (LC29MP), which keeps the paired brake setup easier to order.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
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