WILWOOD 261-15544-BK Wilwood 261-15544-BK Tandem Master Cylinder Kit with Proportioning Valve for Mustang

The Wilwood 261-15544-BK Tandem Master Cylinder Kit is designed for Mustang applications requiring dependable hydraulic brake control and a clean, compact installation. This complete kit combines a compact aluminum master cylinder with an integral fluid reservoir and an included proportioning valve, helping simplify brake system upgrades while supporting balanced front-to-rear braking performance. The black-painted finish provides a durable, professional appearance suitable for street, performance, and custom automotive builds.
The master cylinder features a 1-inch bore and 1.100-inch stroke, providing responsive pedal operation and consistent hydraulic pressure for compatible braking systems. Its tandem design separates the primary and secondary hydraulic circuits for added braking system functionality, while the integral reservoir helps reduce installation complexity by keeping the fluid supply integrated with the cylinder assembly. The included proportioning valve allows brake bias adjustment to help accommodate vehicle setup, tire selection, and driving requirements.
Built by Wilwood, the 261-15544-BK offers a practical solution for Mustang owners and builders seeking a compact replacement or upgraded master cylinder assembly. The aluminum construction helps reduce unnecessary weight, and the black-painted exterior complements a wide range of engine bay and chassis finishes. Confirm vehicle compatibility, mounting configuration, pedal linkage, brake fluid requirements, and system plumbing before installation. Professional installation and proper brake bleeding are recommended to help ensure safe, reliable operation.

Features:

• Brand: Wilwood

• Part Number: 261-15544-BK

• Application: Designed for compatible Mustang brake system applications

• Product Type: Tandem master cylinder kit

• Bore Size: 1-inch bore for responsive hydraulic operation

• Stroke: 1.100-inch stroke

• Reservoir: Integral fluid reservoir for a compact installation

• Proportioning Valve: Included to help adjust front-to-rear brake bias

• Construction: Lightweight aluminum body

• Finish: Durable black-painted exterior

• Installation: Compact design for performance and custom brake system builds