Wilwood Left-Valve Remote Tandem Master Cylinder Kit, Black 7/8-inch Bore and Pushrod

This black Remote Tandem kit includes a 7/8-inch master, captured manual-brake pushrod and left-mounted combination valve. Two 7 oz reservoirs can be positioned directly at the cylinder or remotely using the supplied mounting and feed components. 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: 261-14249-BK
• Material: Aluminum / Plastic
• Cylinder bore: 7/8"
• 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: Black E-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
• Kit contents: Master cylinder, left-side combination proportioning valve and bracket, formed stainless connecting tubes and mounting hardware
• Combination-valve functions: Adjustable rear pressure, isolated front/rear circuits, front-line junction and hydraulic brake-light switch
• 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

Match the manual pedal clevis, 3/8-24 rod and 3.22–3.40-inch flange spacing. Plan the reservoir height and feed-hose routing with enough room for the left valve; verify the full actual piston travel before the linkage reaches any stop.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS1189 instructions and specifications
• Wilwood FL162 instructions and specifications
• Wilwood DS1178 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.