Wilwood Remote Tandem Brake Master, Chrome Powder Finish, 15/16-inch Bore with Rod

This tandem master uses chrome powder coating on its aluminum housing and a threaded pushrod at the pedal end. Both seven-ounce fluid reservoirs are separate components, letting their mounting and fill access be arranged independently of the cylinder's low-profile position. Established in 1977 by Bill Wood, Wilwood Engineering designs and manufactures disc brake systems from its base in Camarillo, California. Calipers, fittings, rotors, valves, master cylinders and brake lines serve its motorsport, street-performance and specialized applications. The full assembly, including its mating connections and operating requirements, governs the correct part selection.

Technical Details

• Manufacturer part number: 260-14242-P
• Material: Aluminum / Plastic
• Cylinder bore: 15/16"
• Pressure circuits: 2
• Reservoir Type: Remote
• Fluid capacity: 7.0 / 7.0 oz
• Flange-to-end length: 6.56"
• Overall Length: 10.76"
• Mounting centers: 3.22–3.40"
• Pushrod dimensions: 4.23" x 3/8-24
• 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
• Travel check: DS-1189 specifies 1.12-inch stroke and also states 1.10 inches in its full-travel warning; verify actual full piston travel before the pedal reaches a stop
• Reservoir feed: 0.87-inch inlet seating diameter with 11/16-20 internal thread; 1/4-inch feed-hose adapters for the standard remote reservoirs
• Reservoir package: Two 7 oz reservoirs with caps, brackets, clamps, hoses and feed adapters for direct or remote mounting

Fitment & Compatibility

Select the fifteen-sixteenths-inch bore for the installed caliper or wheel-cylinder requirements. Verify free piston return and unobstructed full travel, then connect the proper primary and secondary lines using the supplied adapters and plugs. Remote brackets and feed hose are included; the vehicle's pressure plumbing and pedal linkage must be suitable.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS1189 instructions and specifications
• Wilwood FL428 instructions and specifications
• Wilwood FL162 instructions and specifications
• Wilwood FL467 instructions and specifications

With more than 20 years of experience, PMB Performance can help compare the specified part with the assembly you are servicing. Include the existing part identification and relevant hydraulic dimensions.