Wilwood 260-3378 Combination Remote Master Cylinder Kit 1" Bore

The Wilwood 260-3378 is a Combination Remote Master Cylinder Kit featuring a 1-inch bore, precision machined from high-strength aluminum for dependable performance in demanding brake and clutch applications. Designed for maximum installation flexibility, this kit supports four different mounting configurations, making it a versatile solution for a wide range of builds.

The kit includes two reservoir options — a small 4.0 oz. reservoir and a large 10.7 oz. reservoir — both of which can be mounted directly onto the master cylinder body or positioned remotely for easier fluid inspection and service access. The outlet port features a 3/8-24 thread, and standard mounting bolt-hole spacing simplifies installation across a variety of chassis and firewall configurations.

Key Features:

• 1-inch bore diameter with 1.2-inch stroke
• Precision-machined high-strength aluminum body with natural finish
• Four available installation configurations for flexible mounting
• Includes both small (4.0 oz.) and large (10.7 oz.) plastic reservoirs
• Reservoirs can be direct-mounted or remotely mounted for convenient access
• Single 3/8-24 threaded outlet port
• Standard bolt-hole mounting flange for broad compatibility
• Not compatible with a brake booster
• Suitable for brake or clutch hydraulic systems
• Rebuild kit available separately (part number 260-3884)

The Wilwood 260-3378 is well-suited for racing, off-road, specialty, recreational, and industrial vehicle applications. The combination remote design delivers the installation flexibility of a traditional direct-mount master cylinder with the added convenience of remote fluid reservoir options.