Wilwood 260-9439-BK Tandem Master Cylinder with Integral Reservoir, 0.875-Inch Bore, Black Aluminum

The Wilwood 260-9439-BK tandem master cylinder is designed for reliable hydraulic brake system performance in applications requiring a compact, integrated reservoir design. Its 0.875-inch bore provides consistent fluid displacement and pedal response, making it suitable for a wide range of performance, racing, and custom brake system installations. The tandem configuration provides separate hydraulic circuits for added braking system control and redundancy.
The master cylinder features a lightweight aluminum body with a durable black-painted finish for corrosion resistance and a clean, professional appearance. An integral reservoir simplifies installation by combining fluid storage with the master cylinder assembly, reducing the need for a separate remote reservoir in compatible applications. The 1.100-inch stroke is engineered to support dependable brake actuation when properly matched to the calipers, pedal ratio, and overall hydraulic system.
Wilwood part number 260-9439-BK is built for enthusiasts, builders, and technicians seeking dependable braking components from a recognized performance brake manufacturer. Verify bore size, stroke requirements, mounting configuration, fluid compatibility, and system specifications before installation. Proper bleeding and adjustment are essential for achieving the intended pedal feel and braking performance. This kit is not air restricted and is not designated for truck freight.

Features:

• Brand: Wilwood

• Part Number: 260-9439-BK

• Type: Tandem master cylinder

• Bore Size: 0.875 inch

• Stroke: 1.100 inches

• Reservoir: Integral reservoir

• Material: Aluminum

• Finish: Black paint

• Application: Performance, racing, and custom hydraulic brake systems

• Shipping Classification: Not air restricted and not truck freight only