Wilwood 260-15091 GS Compact Remote Master Cylinder – 3/4in Bore

The Wilwood 260-15091 GS Compact Remote Master Cylinder is a high-quality, rebuildable hydraulic master cylinder designed for performance street, race, and custom brake system applications. This GS Compact series master cylinder features a durable high-pressure die-cast aluminum body with a corrosion-resistant black e-coat finish for long-term reliability.

Designed for use with a remote reservoir, this master cylinder utilizes a standard 7/16-20 threaded inlet and incorporates a refined piston and return spring assembly to ensure smooth pressure modulation and fast, complete release. Its compact size makes it ideal for tight engine bays, pedal box installations, and custom brake or clutch setups.

Key Features & Benefits

• GS Compact series rebuildable master cylinder

• 3/4 inch bore for balanced brake pressure output

• High-pressure die-cast aluminum body

• Black e-coat finish for corrosion resistance

• Remote reservoir design (reservoir sold separately)

• Refined piston and return spring for positive pressure control

• Single outlet configuration

• Compact size for custom and racing applications

Technical Specifications

• Bore Size: 3/4 in

• Area: 0.440 in²

• Stroke: 1.25 in

• Volume: 0.55 cu in

• Type: Single Outlet

• Number of Outlets: 1

• Material: Aluminum

• Finish: Black E-Coat

• Reservoir Type: Remote

Dimensions & Fittings

• Overall Length: 7.85 in

• Flange to End Length: 4.10 in

• Inlet Size: 7/16-20

• Outlet Size: 3/8-24

• Outlet Fitting: 3/8-24 Inverted Flare Female

Package Contents

• Wilwood GS Compact Remote Master Cylinder

• Master cylinder only (remote reservoir not included)

Vehicle Fitment

• Universal Fit

• Intended for custom brake systems, race cars, street performance vehicles, and pedal box applications

• Compatible with Wilwood and aftermarket remote reservoirs

• Professional installation recommended

Additional Notes

• Remote reservoir required for operation

• Brake system modifications may not be legal for street use in all regions

• Always verify bore size and pedal ratio for your specific application