Wilwood Compact One-Inch Master Cylinder Kit with Banjo Outlet and 7-/10-Ounce Reservoirs

For a system needing the one-inch Compact Remote bore, this package provides a single-outlet master with both fluid-container options. Its 1.12-inch stroke and direct-or-remote reservoir arrangement need to be matched to the actual pedal travel and circuit volume. Wilwood Engineering's disc brake systems bring together calipers, rotors, valves, master cylinders, fittings and brake lines. Founded by Bill Wood in 1977 and based in Camarillo, California, the company designs and manufactures products for motorsport, street-performance and specialized applications. The installed system determines which individual component is appropriate.

Technical Details

• Manufacturer part number: 260-13622
• Material: Aluminum / Plastic
• Cylinder bore: 1.00"
• Pressure circuits: 1
• Stroke Length: 1.12 in
• Listed displacement per stroke: 0.87 cu in
• Reservoir Type: Remote
• Flange-to-end length: 3.37"
• Overall Length: 7.80"
• Mounting centers: 2.25 inches, vertical flange
• Pushrod dimensions: 4.00" x 5/16-24
• Finish: Black E-coat
• Inlet arrangement: 0.87-inch seating diameter with 11/16-20 internal thread; this is the reservoir feed, not the pressure outlet
• Pressure connection: 3/8-24 banjo outlet; suitable banjo fitting is purchased separately
• Reservoir package: 7 and 10 oz plastic reservoir bodies, cap, remote hose, adapters, clamps and bracket hardware
• Fluid selection: DOT 3, DOT 4 or DOT 5.1 for racing/performance use; DOT 5 silicone is not recommended for those uses

Fitment & Compatibility

The mounting flange uses 2.25-inch centers and the pushrod thread is 5/16-24. Install the correct separately purchased banjo fitting in the 3/8-24 outlet, then confirm hose clearance at full pedal movement. Reservoir feed components are included, but they do not replace a suitable pressurized brake or clutch line.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS1057 instructions and specifications
• Wilwood FL162 instructions and specifications

The component must suit the completed installation. PMB Performance draws on over 20 years of experience to help you check the part identification, mating connections and required operating dimensions.