What are the signs that my brake master cylinder needs replacing?

Common signs include a spongy or soft brake pedal, a pedal that sinks to the floor when held, reduced braking ability, or visible brake fluid leaks around the master cylinder itself. If you notice any of these issues, it's a good idea to have your braking system inspected.

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 of brake fluid for your BMW 733i separately and ensure the system is properly bled after installation.

What is the Prop 65 warning about?

The Prop 65 warning indicates that this product contains chemicals known to the State of California to cause cancer or reproductive harm. This is a standard warning for many automotive parts and does not necessarily mean the product is unsafe when used as intended.

DFC 77-84 BMW 733i Brake Master Cylinder

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Specifications

Brand: DFC
Part #: 355-31005
UPC: 190920374838

DFC 77-84 BMW 733i Brake Master Cylinder

Name: DFC 77-84 BMW 733i Brake Master Cylinder
Brand: DFC
Price: 153.89 USD
Availability: InStock

$153.89

On Backorder

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

Fits 1978-1984 BMW 733i. This DFC brake master cylinder is a direct replacement for your original, ensuring reliable stopping power.

Key Features

Fits 1978-1984 BMW 733i.
Cast iron housing for durability.
Direct replacement for the original master cylinder.
Restores proper hydraulic brake pressure.
Helps ensure reliable stopping performance.

⚠️ 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

BMW 733i 1978-1984

Product Details

The cast iron housing on this DFC brake master cylinder is built to handle the pressures of your braking system. For your 1978-1984 BMW 733i, a properly functioning master cylinder is key to delivering hydraulic pressure to your brake calipers or wheel cylinders, allowing you to slow down and stop safely. This unit is designed as a direct replacement for your original, meaning it should install without needing modifications to your existing brake lines or mounting points.

When your master cylinder starts to fail, you might notice a spongy brake pedal, a longer stopping distance, or even brake fluid leaks around the unit. Replacing it with a well-built unit like this DFC cylinder helps restore your braking system's performance. It's a solid option for getting your 733i back to its intended stopping capability.

This master cylinder is designed specifically for the 1978 through 1984 BMW 733i. Always refer to the manufacturer's installation instructions for proper bleeding and setup procedures to ensure optimal performance.