These Wilwood combination remote tandem master cylinders provide one of the safest ways to actuate 4-wheel or dual-caliper axle brake systems. These versatile, lightweight, and easily adapted master cylinders provide single-pushrod activation of two separate brake fluid circuits. By completely isolating the fluid reservoirs and circuits, the front and rear brakes are able to operate independently of each other and provide a safety net, should any one side of the system become inoperable. They're a great match for Wilwood's bolt-on disc brake kits, systems configured from OE components, and a variety of industrial applications.