What are the symptoms of a failing brake master cylinder?

Common signs include a brake pedal that feels spongy or goes to the floor, a noticeable increase in stopping distance, or visible brake fluid leaks around the master cylinder. If you experience any of these, it's time to consider replacement.

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 separately and bleed the brake system after installation.

What tools are typically needed to replace a brake master cylinder?

Replacing a master cylinder usually requires basic hand tools, including wrenches to disconnect brake lines and mounting bolts. A flare nut wrench is recommended for brake line fittings to prevent damage. You will also need a container to catch old brake fluid and a way to bleed the brake system.

DFC 74-84 Chevrolet P30 Brake Master Cylinder

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Specifications

Brand: DFC
Part #: 355-47140
UPC: 190920379123

DFC 74-84 Chevrolet P30 Brake Master Cylinder

Name: DFC 74-84 Chevrolet P30 Brake Master Cylinder
Brand: DFC
Price: 96.24 USD
Availability: InStock

$96.24

On Backorder

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

DFC Brake Master Cylinder for 1974-1984 Chevrolet and GMC C/G/K/P30 and C/G/K/P3500 trucks and vans. Ensures reliable braking performance.

Key Features

Fits 1974-1984 Chevrolet and GMC C/G/K/P30 and C/G/K/P3500 trucks and vans.
Features a durable cast iron housing for long-lasting performance.
Direct replacement part designed to fit the original mounting location.
Restores proper hydraulic pressure for reliable braking.
Helps resolve issues like a spongy brake pedal or reduced stopping power.

⚠️ 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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Will this fit your vehicle?

Product Details

This DFC brake master cylinder is built with a cast iron housing, a material known for its strength and durability under pressure. It's designed to replace the original master cylinder on a wide range of Chevrolet and GMC C/G/K/P30 and C/G/K/P3500 trucks and vans from 1974 through 1984. A properly functioning master cylinder is crucial for your braking system, as it converts the force from your brake pedal into hydraulic pressure that pushes the brake pads against the rotors.

When your original master cylinder starts to wear out, you might notice a spongy brake pedal, a longer stopping distance, or even brake fluid leaks. Replacing it with a well-built unit like this DFC cylinder helps restore your braking system's responsiveness and safety. This part is a direct replacement, meaning it's made to bolt right into the factory location, simplifying the installation process for mechanics and DIYers alike.

This master cylinder is a solid option for anyone working on the braking system of their classic Chevrolet or GMC heavy-duty truck or van. Ensure you check the manufacturer's installation instructions for proper bleeding of the brake lines after installation to achieve optimal performance.