SKP SKM630325 Brake Master Cylinder

Brake Master Cylinder for Silverado and Sierra

The SKP Brake Master Cylinder restores hydraulic pressure transfer for consistent brake pedal response. Built to OE specifications with durable materials, this replacement is made for direct-fit service on select Chevrolet Silverado 1500 Classic and GMC Sierra 1500 Classic applications.

• Brake master cylinder for hydraulic brake system operation
• OE-spec fitment for direct replacement service
• 1.125 in. bore size for listed applications
• Fits vacuum brake system applications where noted
• Reservoir retainer style: roll pin reservoir retainer on listed vehicles
• SKP part number SKM630325

Fitment Details

Compatible With 2007 Chevrolet Silverado 1500 Classic, N/A; 2007 GMC Sierra 1500 Classic, N/A; 2005-2006 Chevrolet Silverado 1500, N/A; 2005-2006 Chevrolet Silverado 1500 HD, N/A; 2005-2006 GMC Sierra 1500, N/A; and 2005-2006 GMC Sierra 1500 HD, N/A. Fitment notes include 1.125 in. bore size, vacuum brake system on 2005-2006 applications, and roll pin reservoir retainer where listed.

This part cross-references Dorman - First Stop M630325 for the same application.

What It Helps Address

• Low or inconsistent brake pedal pressure
• Brake fluid pressure loss within the master cylinder
• Reduced braking response during normal pedal application
• Internal master cylinder wear on Silverado and Sierra trucks
• Replacement needs for vacuum brake system applications with the listed bore size

Installation Notes

Verify bore size, reservoir retainer style, and brake system configuration before installation. Bleed the brake system after replacement and confirm all hydraulic connections are secure. Match the application exactly to the listed Silverado and Sierra fitment notes for proper service.

Quality Assurance

SKP manufactures this master cylinder to meet OE specifications for fit and function, supporting reliable brake system restoration on the listed Chevrolet and GMC trucks.