The ACDelco Professional DuraStop Brake Master Cylinder Repair Kit includes high quality replacement parts for your vehicles braking system. This kit includes the necessary screws, fasteners, bushings and other hardware needed to repair your vehicles master cylinder. Brakes are an area where vehicle owners simply cant compromise. With the ACDelco brakes, you can get the peace of mind that comes with parts expertly engineered, manufactured to rigorous tolerances, thoroughly tested and given the ACDelco name. Choose from our GM Original Equipment, Professional DuraStop, Advantage and Specialty series to meet your performance requirements and budget.