13/16in Master Cylinder Kit

The Wilwood 13/16in Master Cylinder Kit (model 260-5920) is a professional-grade hydraulic component engineered for drivers and shops building custom brake systems or upgrading existing hydraulic lines. This direct or remote reservoir master cylinder addresses a critical need in high-performance and modified vehicle applications where OEM brake systems fall short of stopping power or modulation requirements. Whether you're constructing a street rod, track-focused machine, or restoring a classic with modern braking capability, this kit delivers the hydraulic foundation every serious brake upgrade demands.

Built from aluminum in natural finish, the 13/16in master cylinder features a 0.813 inch bore with a 1.100 inch stroke, proportions specifically sized to deliver balanced pressure and fluid displacement across dual-circuit brake systems. The aluminum construction keeps weight minimal while maintaining rigidity under repeated thermal cycling and high-pressure cycles typical of performance braking. The kit includes all necessary components for either direct mounting to firewall or remote reservoir installation, providing flexibility in chassis design and packaging constraints. This configuration ensures proper brake feel and pressure modulation regardless of pedal geometry or proportioning valve setup in your custom system.

Builders benefit most from this master cylinder when integrating disc brake conversions, installing proportioning valves, or dialing in brake bias on independent suspension conversions. Professional shops specify Wilwood master cylinders for restoration projects, drag racing builds, and circle track applications where brake consistency and durability matter. The dual-circuit design supports modern ABS integration where required, and the straightforward mounting provisions accommodate most hardline and flexible hose routing configurations. Verify compatibility with your specific brake caliper sizes and wheel cylinder requirements, as proper system matching ensures optimal pedal pressure and stopping distance across all driving conditions.