What does a brake master cylinder do?

The brake master cylinder is the heart of your vehicle's hydraulic braking system. When you press the brake pedal, it converts that force into hydraulic pressure, which then pushes brake fluid to the calipers or wheel cylinders to slow your vehicle down.

What are the signs of a failing master cylinder?

Common signs include a brake pedal that feels spongy or sinks to the floor when pressed, a noticeable decrease in braking performance, or brake fluid leaks around the master cylinder itself. You may also notice the brake fluid level dropping over time.

Does this master cylinder come with brake fluid?

This part is the master cylinder unit only and does not include brake fluid. You will need to purchase the appropriate brake fluid for your vehicle and ensure the system is properly bled after installation.

DFC 03-07 Chevrolet Silverado 2500 Brake Master Cylinder

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Specifications

Brand: DFC
Part #: 355-47172
UPC: 190920379444

DFC 03-07 Chevrolet Silverado 2500 Brake Master Cylinder

Name: DFC 03-07 Chevrolet Silverado 2500 Brake Master Cylinder
Brand: DFC
Price: 101.38 USD
Availability: InStock

$101.38

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 2003-2007 Chevrolet Silverado 2500 and many other trucks. Restores reliable braking performance.

Key Features

Fits 2003-2007 Chevrolet Silverado 2500 and many other compatible GM trucks.
Restores proper hydraulic pressure for reliable braking.
Designed to meet original equipment specifications for fit and function.
Direct replacement part for straightforward installation.
Part Number: 355-47172
UPC: 190920379444

⚠️ 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

DFC is known for making reliable replacement parts, and this brake master cylinder is no different. If you're working on a 2003-2007 Chevrolet Silverado 2500, or many other compatible GM trucks, this part is designed to get your braking system back to proper working order. A failing master cylinder can lead to a spongy brake pedal or reduced stopping power, so replacing it is key to safe driving.

This master cylinder is built to meet the original equipment specifications for fit and function. It's a direct replacement, meaning it should install without needing modifications to your existing brake lines or mounting points. Ensuring your brake fluid is clean and the system is properly bled after installation will help this new master cylinder perform as expected, giving you confidence at the brake pedal again.

This master cylinder fits a wide range of popular GM trucks from the early to mid-2000s, including models like the Chevrolet Avalanche 2500, GMC Savana 2500, and GMC Sierra 2500 HD. Make sure to check the full fitment list to confirm compatibility with your specific vehicle.