The 7/8" Bore High Volume Aluminum Brake & Clutch Master Cylinder by Wilwood is a performance part suitable for disc brakes. Made of aluminum with a bore diameter of 7/8 inch, this master cylinder comes with a cap, hydraulic master cylinder, pushrod, and reservoir. It has a universal fitment and is designed for custom performance applications. The product does not come with mounting hardware but is a reliable choice for enhancing the braking system of your vehicle. Made in the United States, this master cylinder offers quality and durability for your car or truck.