Wilwood Chrome Powder 1-1/8-inch Compact Tandem Master with Mustang-Style Pushrod

A chrome powder-coated body, integral reservoir and Ford-style eyelet form this pushrod-equipped Compact Tandem assembly. The one-and-one-eighth-inch bore must be considered with the manual pedal ratio and brake volume rather than treated as a direct upgrade by size alone. The disc brake systems Wilwood Engineering designs and manufactures include calipers, rotors, master cylinders, brake lines, valves and fittings. The company dates to Bill Wood's founding in 1977 and is based in Camarillo, California. Motorsport, specialized and street-performance applications all call for parts matched to the operating requirements of the full system.

Technical Details

• Manufacturer part number: 260-15543-P
• Material: Aluminum
• Cylinder bore: 1-1/8"
• Pressure circuits: 2
• Stroke Length: 1.10 in
• Reservoir Type: Integral tandem chambers, 7.8 and 4.7 oz
• Fluid capacity: 7.8 / 4.7 oz
• Flange-to-end length: 6.55"
• Overall Length: 12.32"
• Mounting centers: 3.22–3.40"
• Pushrod dimensions: 5.75"
• Finish: Chrome powder coat
• Native pressure ports: 1/2-20 at both circuits; use the correct included outlet adapters and seal washers
• Circuit outlet adapters: Primary: 3/8-24 or 1/2-20 inverted flare; secondary: 3/8-24 or 9/16-18 inverted flare
• Hydraulic relationship: Equal pressure output from the two circuits before external proportioning; 2:1 primary/secondary volume relationship
• Service: Factory rebuild only; do not disassemble the tandem piston assembly

Fitment & Compatibility

Compare the installed pedal to the Mustang-style arrangement referenced for 1964–1972 on the exact master page. Verify the broader Ford flyer against the individual vehicle, then check stroke, rod capture and mounting rigidity. Provide the correct independent pressure lines and any bias-control components required by the brakes.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS1287 instructions and specifications
• Wilwood FL162 instructions and specifications
• Wilwood FL467 instructions and specifications

PMB Performance offers over 20 years of parts and brake-fitment experience. For a compatibility check, provide the existing assembly and the dimensions that govern the replacement.