Wilwood 261-15522-P Compact Tandem Master Cylinder with Proportioning Valve, 7/8-Inch Bore

The Wilwood 261-15522-P compact tandem master cylinder is designed for performance braking applications that require reliable hydraulic control in a space-conscious package. It features a 7/8-inch bore and 1.100-inch stroke to provide responsive pedal operation and effective brake fluid displacement. The integrated reservoir simplifies installation by combining the fluid container and master cylinder into one streamlined assembly.
The included proportioning valve allows brake bias adjustment to help optimize front-to-rear braking balance for specific vehicle setups and driving conditions. This makes the Wilwood 261-15522-P a practical choice for custom brake systems, competition vehicles, and Mustang applications using a compact master cylinder arrangement. Its tandem design provides separate hydraulic circuits for added braking system control and redundancy.
Constructed from lightweight aluminum, this master cylinder is polished for a clean appearance and durable performance. The compact housing helps accommodate installations where available space is limited, while the integral reservoir reduces the need for additional components and plumbing. The kit is supplied with the proportioning valve included, helping simplify system planning and installation.
Designed by Wilwood for dependable braking performance, the 261-15522-P combines a compact form factor, adjustable brake bias, and aluminum construction in one complete kit. Verify bore size, mounting configuration, pedal ratio, fluid compatibility, and vehicle application before installation to ensure proper brake system operation.

Features:

• Brand: Wilwood

• Part Number: 261-15522-P

• Application: Compact tandem master cylinder for Mustang and custom performance brake systems

• Bore Size: 7/8 inch

• Stroke: 1.100 inches

• Reservoir: Integral reservoir included

• Proportioning Valve: Included for adjustable front-to-rear brake bias

• Construction: Lightweight aluminum

• Finish: Polished

• Design: Tandem hydraulic circuit configuration