The Brake Master Cylinder for Clark Hyster Caterpillar 971571 3011190 HY3011190 is a direct replacement part for forklift braking systems. With a mounting hole distance of 3.44 inches and a bore size of 1 inch, this aftermarket product is compatible with forklifts from Clark, Hyster, and Caterpillar. The cylinder length is 5.59 inches and comes with a push rod included. It is designed to provide reliable braking performance for material handling equipment.