What does a brake master cylinder do?

The brake master cylinder is the heart of your car's hydraulic braking system. When you press the brake pedal, it pushes fluid through the brake lines to engage the calipers or wheel cylinders, which then apply pressure to the rotors or drums to slow your vehicle.

How do I know if I need a new brake master cylinder?

Signs of a failing master cylinder include a brake pedal that feels soft or spongy, a pedal that sinks to the floor when held, or visible brake fluid leaks around the master cylinder itself. You may also notice reduced braking performance.

Does this master cylinder come with brake fluid?

This DFC brake master cylinder does not include brake fluid. You will need to purchase the appropriate type and amount of brake fluid separately and bleed the brake system after installation.

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Trusted Since 1957

Est. 1957

DFC 84-92 Audi Coupe Brake Master Cylinder

Specifications

Brand: DFC
Part #: 355-73030
UPC: 190920388491

DFC 84-92 Audi Coupe Brake Master Cylinder

Name: DFC 84-92 Audi Coupe Brake Master Cylinder
Brand: DFC
Price: 62.44 USD
Availability: InStock

$62.44

Only 2 left in stock

DFC Brake Master Cylinder for 1985-1992 Audi models. Ensures proper brake fluid pressure for reliable stopping.

Key Features

Fits 1985-1992 Audi 100, 4000 Quattro, 80, 80 Quattro, 90, 90 Quattro, and Coupe.
Replaces the original brake master cylinder.
Converts pedal force into hydraulic pressure for braking.
Designed for a direct fit installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

When you're working on the braking system of your Audi, especially models like the 100, 4000 Quattro, or Coupe from the mid-80s to early 90s, a properly functioning brake master cylinder is key. This part is what converts the force from your brake pedal into hydraulic pressure, pushing brake fluid through the lines to activate your brakes. If yours is leaking or not building pressure, it's time for a replacement.

This DFC brake master cylinder is built to meet the original specifications for a range of Audi vehicles from 1985 through 1992. It's designed to fit right into place, making the installation process straightforward for a mechanic. A solid option for restoring your Audi's braking performance and ensuring you can stop safely.