7/8in Master Cyl Repair Kit

The 7/8in Master Cyl Repair Kit (Tilton 74-875RK) is a complete rebuild solution for brake system maintenance and restoration on performance and street vehicles equipped with Tilton 74-series master cylinders. Whether you're refreshing a daily driver or returning a track-prepped brake system to factory specifications, this master cylinder repair kit supplies all internal seals, dust boots, and wear components needed to restore hydraulic pressure integrity and pedal feel. Rebuilding a master cylinder extends system reliability and eliminates soft or spongy brake response caused by aged seals and internal corrosion.

This repair kit contains OEM-specification seals and internals designed for Tilton's proven 74-series compact bore design, featuring a 7/8-inch bore diameter that balances pedal travel and hydraulic force for both street and motorsport applications. The kit includes primary and secondary seals, return spring assemblies, dust boot components, and all retaining hardware required for complete disassembly and reassembly—eliminating the need to source parts individually from multiple suppliers. Tilton engineering ensures precise dimensional tolerances across all seal geometries, preventing leakage while maintaining smooth piston travel and consistent brake modulation under sustained pressure cycles.

Mechanics and performance enthusiasts rely on Tilton rebuild kits to maintain braking systems on street rods, road racing vehicles, and classic car restorations where original Tilton master cylinders are specified or installed. This kit is compatible exclusively with Tilton 74-series master cylinders carrying 7/8-inch bore specifications; verify your cylinder's model number before ordering to ensure correct fit. Installation requires basic mechanical skills, standard seal removal tools, and familiarity with brake system bleeding procedures. The compact 2.9 x 2.2 x 4.1-inch kit packaging contains all components needed to complete one full master cylinder rebuild.