Wilwood GS Compact Master Cylinder 0.625in Bore Integral Reservoir Aluminum Black 260-15096

If you're building a dedicated race car or upgrading to a high-performance braking system, brake feel and modulation depend on the right master cylinder. The Wilwood GS Compact delivers responsive pressure control in a space-efficient package, making it ideal for tight engine bays and custom installations where standard units won't fit. Its integral reservoir design eliminates external plumbing complications while the die-cast aluminum construction handles the demands of road racing, circuit work, and weekend track days.

This master cylinder pairs refined internal geometry with a quick-release mechanism that prevents brake lag. Whether you're running a custom brake line layout or upgrading an existing system, the 0.625-inch bore strikes a balance between pedal travel and pressure output—giving you the control you need without excessive foot effort.

• 0.625-inch bore
• 1.25-inch stroke
• Die-cast aluminum body
• Black anodize finish
• Integral reservoir included
• Compact design profile
• Quick-release mechanism
• High-pressure construction
• Part #260-15096