Master Cylinder Short Side Mount 7/8in

The Wilwood Master Cylinder Short Side Mount 7/8in bore is a compact, single-circuit brake master cylinder engineered for custom hydraulic brake system builds where space is limited and direct or remote side reservoir mounting is required. This aluminum master cylinder delivers consistent pedal pressure control across a range of brake applications, from street rods and custom vehicles to motorsports setups where traditional under-dash layouts are impractical or undesirable.

The 0.875-inch bore diameter and 1.120-inch stroke provide a balanced bore-to-stroke ratio suited for moderate pedal travel while maintaining adequate fluid displacement for reliable brake engagement across multiple wheels. The black paint finish offers corrosion resistance in typical automotive environments. The side-mount reservoir configuration allows integration into tight engine bays or custom installations where front-mounted or firewall-mounted cylinders create packaging conflicts. Wilwood's compact master cylinder design does not compromise on pressure consistency—critical for safety-critical brake system performance.

This master cylinder is intended for builders and restoration specialists who require flexible mounting options and space-efficient brake system architecture. Custom car builders, off-road vehicle fabricators, and motorsports enthusiasts value the short side-mount configuration because it eliminates the need for complex linkage extensions and allows cleaner, more responsive brake pedal geometry. The aluminum construction keeps overall system weight minimal—an advantage in lightweight competition vehicles or weight-conscious street applications.

Wilwood master cylinders are recognized in the brake system aftermarket for precision bore tolerances and consistent valve response. The 7/8-inch bore size sits in the mid-range of common master cylinder diameters, making it compatible with many brake line adapters and reservoir options available from performance brake suppliers. Proper fluid specification and regular maintenance remain essential for long-term reliability in any brake system installation.