This aluminum tandem master cylinder is engineered specifically for early Mustang applications from 1964 to 1972, providing a reliable and lightweight hydraulic solution for manual brake systems. Featuring a 15/16-inch bore and a 1.10-inch stroke, it ensures optimal brake pedal feel and responsiveness while maintaining high fluid volume capacity. The master cylinder includes the correct pushrod for factory brake pedals and is compatible with mount flanges measuring from 3.22 to 3.40 inches, matching the original factory manual master cylinder mount points. Fluid outlet ports are positioned on both sides of the bore, facilitating flexible installation options. Crafted from high-pressure die-cast aluminum, this master cylinder weighs approximately 3.2 pounds, offering a 75% weight reduction compared to traditional cast iron units, which enhances overall vehicle dynamics and handling. Available in three finishes—plain, ball burnished, and black e-coat—this durable component is designed for heavy-duty fleet and automotive applications, delivering long-lasting performance and corrosion resistance.