---
product_id: 12997051
title: "LIBRA 10\" x 2-1/4\" Trailer Hydraulic Free Backing Marine Brake Assembly Pair Set - 21016"
brand: "libra"
price: "¥71747"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/12997051-libra-10-x-2-1-4-trailer-hydraulic-free-backing
store_origin: JP
region: Japan
---

# Stainless steel & aluminum hardware 10" x 2-1/4" precision size Advanced DACROMET corrosion shield LIBRA 10" x 2-1/4" Trailer Hydraulic Free Backing Marine Brake Assembly Pair Set - 21016

**Brand:** libra
**Price:** ¥71747
**Availability:** ✅ In Stock

## Summary

> 🛥️ Lock in marine-grade stopping power—don’t let corrosion slow you down!

## Quick Answers

- **What is this?** LIBRA 10" x 2-1/4" Trailer Hydraulic Free Backing Marine Brake Assembly Pair Set - 21016 by libra
- **How much does it cost?** ¥71747 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/12997051-libra-10-x-2-1-4-trailer-hydraulic-free-backing)

## Best For

- libra enthusiasts

## Why This Product

- Trusted libra brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Marine-Grade Hardware:** Equipped with stainless steel and aluminum parts to withstand harsh marine environments without compromise.
- • **Ultimate Corrosion Resistance:** Advanced DACROMET coating ensures your brakes stay rust-free and marine-ready season after season.
- • **Complete Left & Right Assembly:** Includes both left and right brake assemblies for one axle—get the full upgrade in one package.
- • **Optimized Mounting Compatibility:** Designed with a 3" center hole diameter and 4-hole mounting pattern for easy integration (mounting bolts not included).
- • **Precision Fit for 3,500 lbs Axles:** Engineered to perfectly match most 3,500 lbs trailer axles for seamless installation and reliable performance.

## Overview

The LIBRA 10" x 2-1/4" Hydraulic Free Backing Marine Brake Assembly Pair Set delivers precision-engineered braking for trailers up to 3,500 lbs. Featuring advanced DACROMET coating and marine-grade stainless steel and aluminum hardware, this pair ensures maximum corrosion resistance and durability in harsh marine environments. Designed for easy installation with a 3" center hole and 4-hole mounting pattern, it’s the reliable upgrade your trailer deserves.

## Description

LIBRA 10" x 2-1/4" Trailer Hydraulic Free Backing Marine Brake Assembly Pair Set - 21016

## Features

- New OE 10" x 2-1/4" Hydraulic free backing marine trailer brake assemblies (1 left + 1 right) for one axle
- works with most 3,500 lbs trailer axles in the market
- Advanced DACROMET coating for maximum corrosion resistance
- Stainless steel or aluminum hardware or parts
- Center Hole Diameter: 3",4 holes mounting, bolt circle diameter: 4", mounting bolts not included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Libra |
| Brand | LIBRA |
| Item Weight | 18.88 pounds |
| Package Dimensions | 12.48 x 12.44 x 6.73 inches |
| Item model number | HB10A |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | HB10A |

## Images

![LIBRA 10" x 2-1/4" Trailer Hydraulic Free Backing Marine Brake Assembly Pair Set - 21016 - Image 1](https://m.media-amazon.com/images/I/81aX3g14bvL.jpg)
![LIBRA 10" x 2-1/4" Trailer Hydraulic Free Backing Marine Brake Assembly Pair Set - 21016 - Image 2](https://m.media-amazon.com/images/I/81iHVctaXIL.jpg)
![LIBRA 10" x 2-1/4" Trailer Hydraulic Free Backing Marine Brake Assembly Pair Set - 21016 - Image 3](https://m.media-amazon.com/images/I/81zUdz5wHXL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ trailer brakes
*by A***R on April 19, 2025*

fit my 1996 poonton trailer perfectly Thanks

### ⭐⭐⭐⭐⭐ perfect fit
*by P***F on December 11, 2024*

easy install to replace the surge brakes on my boat trailer. 4 bolts and you're done! I replaced the brake lines , and actuator, also. With everything new, it bled easily, adjusted perfectly all by itself, and they work great. I don't have to do anything to back up, either.

### ⭐⭐⭐⭐⭐ Great replacement for my 1993 trailmaster boat trailer
*by G***S on July 23, 2020*

These seem to be better quality than the OEM brakes that were replaced as everything appears to be stainless steel. The OEM had several non-stainless components that were severely corroded. I was just going to replace the shoes, but I'm glad I got the whole assembly. Hint: If you're like me and haven't done any work on drum brakes in years, (like 25 years) take a few minutes to reacquaint yourself with the process. At first I though they didn't fit because I had installed the brake line before putting the drum back on. I pushed in the brake cylinder, thinking it was fully compressed, like I would with a disk caliper but gravity was causing the brake fluid to fill cylinder just enough that by the time I picked up the drum it wouldn't go back on. Ha! took me a WHILE to figure out what was going on. Install the drum first - then the brake line. Hopefully that saves someone else a few headaches.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-27*