Wilwood Remote Tandem Master Cylinder, 1-inch Bore with Two 4 oz Reservoirs

This one-inch Remote Tandem master includes two plastic 4 oz reservoirs, brackets and feed hoses for direct or remote mounting. The older serviceable design provides equal circuit output and includes a threaded pushrod, unlike the later large-reservoir tandem families. 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: 260-7563
• Material: Aluminum / Plastic
• Cylinder bore: 1.00"
• Pressure circuits: 2
• Stroke Length: 1.10 in
• Reservoir Type: Remote
• Fluid capacity: 4.0 / 4.0 oz
• Flange-to-end length: 7.03"
• Overall Length: 9.88 in
• Mounting centers: 2.25"
• Pushrod dimensions: 3.38" x 5/16-24
• Finish: Bare
• Reservoir package: Two 4 oz reservoirs, brackets and two 3/8-inch × 30-inch feed hoses for direct or remote mounting
• Pressure ports: M15 × 1 native with 3/8-24 inverted-flare adapters
• Circuit output: Equal 50/50 output
• Residual valves: Internal drum-brake residual valves must be removed from disc-brake circuits as directed in DS439
• Inlet seat: 1.35-inch seating diameter; not a pressure-port thread
• Outlet connection: 3/8-24 IF Female

Fitment & Compatibility

Confirm the 2.25-inch mounting centers and 1.10-inch stroke before installation. Follow DS-439 for circuit routing and remove the internal residual valves from circuits feeding disc brakes; the supplied valves are for drum-brake requirements.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS439 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.