---
product_id: 515538095
title: "4 Piston Hydraulic Brake Repair Parts Upgrade kit Ceramic Piston Perfect Substitute for Shimano Brake Caliper 4-Piston M640 M810 M820 M7120 M8020 M8120 M9120"
brand: "exnavi"
price: "€ 176.89"
currency: EUR
in_stock: true
url: https://www.desertcart.fr/products/515538095-4-piston-hydraulic-brake-repair-parts-upgrade-kit-ceramic-piston
store_origin: FR
region: France
---

# Turbofan airflow design Heat resistance >400°C Automotive-grade phenolic resin 4 Piston Hydraulic Brake Repair Parts Upgrade kit Ceramic Piston Perfect Substitute for Shimano Brake Caliper 4-Piston M640 M810 M820 M7120 M8020 M8120 M9120

**Brand:** exnavi
**Price:** € 176.89
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Upgrade your ride with unstoppable braking power!

## Quick Answers

- **What is this?** 4 Piston Hydraulic Brake Repair Parts Upgrade kit Ceramic Piston Perfect Substitute for Shimano Brake Caliper 4-Piston M640 M810 M820 M7120 M8020 M8120 M9120 by exnavi
- **How much does it cost?** € 176.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/515538095-4-piston-hydraulic-brake-repair-parts-upgrade-kit-ceramic-piston)

## Best For

- exnavi enthusiasts

## Why This Product

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

## Key Features

- • **Leak-Proof Reliability:** Eliminates oil leakage issues common in traditional ceramic pistons—ride worry-free.
- • **Unmatched Heat Endurance:** Withstands scorching temps up to 750°F, keeping your brakes cool under pressure.
- • **Precision Fit for Shimano:** Tailored exclusively for Shimano MT420, MT520, M640, M810, M820, M7120, M8020, M8120, M9120 models.
- • **Automotive-Grade Durability:** Crafted from phenolic resin used in motor cars for ultimate impact and aging resistance.
- • **Innovative Turbofan Cooling:** Eight-point piston contact maximizes airflow, preventing overheating and brake fade.

## Overview

The EXNAVI 4 Piston Hydraulic Brake Repair Parts Upgrade Kit is a premium replacement set designed exclusively for select Shimano brake calipers. Featuring automotive-grade phenolic resin pistons with superior heat resistance over 400°C and a turbofan airflow design, this kit ensures enhanced durability, prevents oil leakage, and delivers consistent braking performance even in extreme conditions.

## Description

4 Piston Hydraulic Brake Repair Parts Upgrade kit Ceramic Piston Perfect Substitute for Shimano Brake Caliper 4-Piston M640 M810 M820 M7120 M8020 M8120 M9120

## Features

- Only suitable for Shimano MT420 MT520 M640 M6120 M7120 M810 M820 M8020 M8120 M9120, not applicable to other than these models
- Extreme environment tolerance: Working heat resistance is greater than 400 degrees Celsius, with heat insulation and heat resistance effect
- Top material safety guarantee: Automotive-grade brake synthetic phenolic resin，The same material standard as motor car , impact resistance, aging resistance, solves the fatal defect of traditional ceramic pistons that are fragile and cause oil leakage
- Turbofan airflow design with eight-point contact with the piston for better heat dissipation
- Strong and durable, no breaking or cracking, Solve the original brake ceramic breaking and oil leakage problem, No worries about oil leakage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Batteries Included | No |
| Brand | EXNAVI |
| Colour | black |
| Material Type | ceramic |
| Sport | cycling |
| Manufacturer | shimano |
| Country of Origin | USA |

## Images

![4 Piston Hydraulic Brake Repair Parts Upgrade kit Ceramic Piston Perfect Substitute for Shimano Brake Caliper 4-Piston M640 M810 M820 M7120 M8020 M8120 M9120 - Image 1](https://m.media-amazon.com/images/I/619qinA-CkL.jpg)

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**Shop now:** [https://www.desertcart.fr/products/515538095-4-piston-hydraulic-brake-repair-parts-upgrade-kit-ceramic-piston](https://www.desertcart.fr/products/515538095-4-piston-hydraulic-brake-repair-parts-upgrade-kit-ceramic-piston)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-28*