Designed for reliable manual brake and clutch applications, this aluminum tandem master cylinder from Wilwood features a 15/16″ bore diameter, making it ideal for a wide range of domestic cars and trucks from the mid-1960s to today. Crafted from high-pressure die castings, it offers a significant weight reduction—approximately 75% lighter than traditional cast iron units—while maintaining durability and performance. The cylinder includes a pushrod for easy installation and is available in three finishes: plain, ball burnished, and black e-coat, allowing for customization to match your vehicle’s aesthetic. With fluid outlet ports on both sides of the bore, a stroke of 1.10 inches, and a 2:1 volume ratio between primary and secondary chambers, this master cylinder delivers consistent hydraulic pressure for optimal braking or clutch operation. Its compatibility with mounting flanges from 3.22 inches to 3.40 inches ensures versatile installation options for most domestic automotive applications.