1-1/8in Master Cylinder

The Wilwood 1-1/8in Master Cylinder (Model 260-3380) is a precision hydraulic component designed for high-performance brake system builds and custom vehicle applications. This master cylinder serves as the heart of any brake system, converting pedal pressure into hydraulic force that activates wheel brakes with consistent, reliable stopping power. Engineers and fabricators specify Wilwood master cylinders for everything from street rods and race cars to heavy-duty truck conversions where OEM components don't meet performance demands.

This 1-1/8 inch bore master cylinder features a 1 inch stroke and is constructed from lightweight aluminum in a natural finish, reducing unsprung weight while maintaining strength and corrosion resistance. The design accommodates both direct-mounted and remote reservoir configurations, giving fabricators flexibility in system layout and packaging. The aluminum construction dissipates heat more efficiently than cast iron, preventing brake fade during sustained high-performance driving or track use. At 2.83 lbs, the compact footprint (10 x 3.5 x 12.8 inches) integrates easily into tight engine bays without sacrificing brake responsiveness or pedal feel.

This master cylinder is ideal for custom fabricators, restoration specialists, and performance enthusiasts building adjustable or manual brake systems where OEM reservoirs are impractical. The direct or remote reservoir compatibility makes it suitable for mid-engine layouts, custom chassis builds, and applications requiring unconventional brake plumbing. Whether you're constructing a vintage hot rod, a competition vehicle, or upgrading a light-duty truck brake system, the Wilwood 260-3380 delivers the modular design and aluminum durability that professional builders demand for repeatable, fade-resistant braking performance.