What does a brake master cylinder do?

The brake master cylinder converts the mechanical force from your brake pedal into hydraulic pressure. This pressure is then sent through the brake lines to activate your vehicle's brakes.

How do I know if my brake master cylinder needs replacing?

Signs of a failing master cylinder include a spongy brake pedal, a brake pedal that sinks to the floor when held, a visible fluid leak from the cylinder itself, or a warning light on your dashboard indicating low brake fluid pressure.

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 brake fluid for your Audi 4000 separately and bleed the brake system after installation.

DFC 84-87 Audi 4000 Brake Master Cylinder

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Specifications

Brand: DFC
Part #: 355-73031
UPC: 190920388507

DFC 84-87 Audi 4000 Brake Master Cylinder

Name: DFC 84-87 Audi 4000 Brake Master Cylinder
Brand: DFC
Price: 83.71 USD
Availability: InStock

$83.71

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1984-1987 Audi 4000. This DFC brake master cylinder is a direct replacement for your original unit, ensuring proper brake system function.

Key Features

Fits 1984-1987 Audi 4000.
Direct replacement for the original brake master cylinder.
Ensures proper hydraulic pressure for braking.
Built to meet original equipment specifications.

⚠️ 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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Fits this vehicle

Audi 4000 1984-1987

Product Details

When you're working on the braking system of your 1984-1987 Audi 4000, a reliable brake master cylinder is essential. This component is the heart of your hydraulic braking system, converting the force from your brake pedal into hydraulic pressure that pushes the brake fluid to the calipers or wheel cylinders. If your master cylinder is leaking or not building pressure, your brakes won't work correctly, making replacement a critical safety job.

DFC offers this brake master cylinder as a direct replacement for your Audi 4000. It's built to meet the original specifications, meaning it should fit right into your existing brake lines and pedal linkage without modification. A properly functioning master cylinder ensures consistent braking performance and helps maintain the safety of your vehicle's stopping power.