Wilwood GS Compact Remote Master Cylinder, 1/2-inch Bore, Without Reservoir

The half-inch GS bore produces the smallest displacement in this remote-reservoir range. A black e-coated aluminum body carries a 7/16-20 fluid-feed inlet and a separate inverted-flare pressure outlet, with the reservoir purchased separately. Camarillo, California is home to Wilwood Engineering, founded in 1977 by Bill Wood. Its disc brake design and manufacturing range includes valves, master cylinders, calipers, brake lines, rotors and fittings for street-performance, specialized and motorsport use. These parts are selected together so the completed braking system has the required hydraulic and mechanical arrangement.

Technical Details

• Manufacturer part number: 260-15088
• Material: Aluminum
• Cylinder bore: 1/2"
• Pressure circuits: 1
• Stroke Length: 1.25 in
• Listed displacement per stroke: 0.24 cu in
• Reservoir Type: Remote
• Flange-to-end length: 4.10
• Overall Length: Exact page: 7.85 inches; DS-1151 Figure 1 remote drawing: 7.99 inches. Confirm installed clearance.
• Mounting centers: 2.25"
• Pushrod dimensions: 3.37" x 5/16-24
• Finish: Black E-coat
• Pressure outlet: 3/8-24 inverted flare
• Fluid selection: DOT 3, DOT 4 or DOT 5.1 for performance use; DOT 5 silicone not recommended
• Reservoir package: Remote reservoir and feed connection purchased separately
• Feed inlet: 7/16-20 thread
• Fluid inlet: 7/16-20 in
• Outlet connection: 3/8-24 IF Female

Fitment & Compatibility

Provide a suitable remote fluid container and inlet fitting, then match the two-and-one-quarter-inch flange to the pedal. Verify full 1.25-inch piston travel and free return of the 5/16-24 pushrod. The 3/8-24 female inverted-flare outlet requires the correct pressure-line seat, not a banjo connection.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS1151 instructions and specifications
• Wilwood FL402 instructions and specifications
• Wilwood FL162 instructions and specifications

PMB Performance has more than 20 years of experience matching brake components. Share the actual mounting, linkage and hydraulic arrangement when requesting fitment assistance.