---
product_id: 85601734
title: "603-642 Brake Master Cylinder Reservoir Compatible with Select Audi / Volkswagen Models"
brand: "dorman"
price: "R$822"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/85601734-603-642-brake-master-cylinder-reservoir-compatible-with-select-audi
store_origin: BR
region: Brazil
---

# Compact 6.5x4.33x5.51 inch design Direct OEM fit for seamless replacement Durable, high-quality construction 603-642 Brake Master Cylinder Reservoir Compatible with Select Audi / Volkswagen Models

**Brand:** dorman
**Price:** R$822
**Availability:** ✅ In Stock

## Summary

> 🚗 Upgrade your brake system with confidence—because every stop counts!

## Quick Answers

- **What is this?** 603-642 Brake Master Cylinder Reservoir Compatible with Select Audi / Volkswagen Models by dorman
- **How much does it cost?** R$822 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/85601734-603-642-brake-master-cylinder-reservoir-compatible-with-select-audi)

## Best For

- dorman enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from premium materials for long-lasting reliability and peace of mind on every drive.
- • **Expert-Backed Quality:** Developed by Dorman’s US-based team with over 100 years of automotive expertise.
- • **Tailored Fit Guarantee:** Use the garage tool to confirm exact fit for your specific make, model, and trim—no guesswork needed.
- • **Ready for Customization:** Exterior surface is paint-ready, letting you maintain your vehicle’s unique style.
- • **Precision OEM Compatibility:** Engineered to perfectly match original Audi & VW brake reservoirs, ensuring flawless fit and function.

## Overview

The Dorman 603-642 Brake Master Cylinder Reservoir is a direct replacement part designed for select Audi and Volkswagen models from the mid-80s through early 2000s. Manufactured with durable materials and backed by decades of automotive expertise, it ensures reliable brake fluid containment and optimal performance. Its precise OEM fit and paint-ready exterior make it the smart choice for professionals and enthusiasts aiming to maintain or restore their vehicle’s braking system with confidence.

## Description

This brake master cylinder reservoir is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance. Vehicle model years this part fits (be sure to check your vehicle trim using the  garage) - [Audi 100 Quattro: 1989, 1990, 1991, 1992, 1993, 1994] - [Audi 100: 1989, 1990, 1991, 1992, 1993, 1994] - [Audi 200 Quattro: 1989, 1990, 1991] - [Audi 200: 1989, 1990, 1991] - [Audi 5000 Quattro: 1986, 1987, 1988] - [Audi 5000: 1984, 1985, 1986, 1987, 1988] - [Audi 80 Quattro: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Audi 80: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Audi 90 Quattro: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Audi 90: 1988, 1989, 1990, 1991, 1993, 1994, 1995] - [Audi A4 Quattro: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002] - [Audi A4: 1995, 1996, 1997, 1998, 1999, 2000, 2001] - [Audi A6 Quattro: 1995, 1996, 1997, 1998, 1999, 2000, 2001] - [Audi A6: 1995, 1996, 1997, 1998, 1999, 2000, 2001] - [Audi Cabriolet: 1994, 1995, 1996, 1997, 1998] - [Audi Coupe Quattro: 1990, 1991] - [Audi S4: 2000, 2001, 2002] - [Volkswagen Passat: 1997, 1998, 1999, 2000, 2001]

## Features

- Direct replacement - this brake master cylinder reservoir is designed to match the fit and function of the original part on specified vehicles
- Ideal solution - this reservoir is a reliable replacement for an original part that has cracked or failed
- Durable construction - this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | Brake Master Cylinder Reservoir |
| Item Weight | 7 ounces |
| Product Dimensions | 6.5 x 4.33 x 5.51 inches |
| Item model number | 603-642 |
| Exterior | Ready To Paint If Needed |
| Manufacturer Part Number | 603-642 |
| OEM Part Number | SK603642; Z70001; 4A0611301K; 8A0611301A; 8D0611301; 8E0611301 |
| Position | Center |

## Images

![603-642 Brake Master Cylinder Reservoir Compatible with Select Audi / Volkswagen Models - Image 1](https://m.media-amazon.com/images/I/81ugDro2b7L.jpg)

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**Shop now:** [https://www.desertcart.com.br/products/85601734-603-642-brake-master-cylinder-reservoir-compatible-with-select-audi](https://www.desertcart.com.br/products/85601734-603-642-brake-master-cylinder-reservoir-compatible-with-select-audi)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-28*