Wilwood One-Inch Compact Remote Master Cylinder Package, Black Aluminum, Flange Mount

A one-inch bore gives this short-body cylinder the specified 0.87-cubic-inch displacement over its 1.12-inch stroke. The package includes a smaller and larger plastic reservoir, plus the feed components needed to choose a direct or remote mounting arrangement. Bill Wood established Wilwood Engineering in 1977. From Camarillo, California, Wilwood designs and manufactures disc brake systems and a component range covering master cylinders, rotors, calipers, fittings, valves and brake lines. Across its motorsport, specialized and street-performance applications, the correct choice depends on the complete brake system rather than one dimension alone.

Technical Details

• Manufacturer part number: 260-10375
• 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: 1/8-27 NPT outlet; select the appropriate pressure-line adapter
• 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

Check that the caliper volume and pedal leverage suit the one-inch bore. The pressure outlet is 1/8-27 NPT; the reservoir inlet also accepts the documented optional 11/16-20 adapter arrangements. Do not treat the remote feed hose as part of the pressure circuit.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS608 instructions and specifications
• Wilwood FL162 instructions and specifications

For help choosing the correct service or conversion component, contact PMB Performance with the existing brake-system details. Our team has over 20 years of experience working through parts and fitment requirements.