Wilwood Left Combination Valve and Chrome 15/16-inch Remote Master Cylinder Kit with Pushrod

Chrome powder coating finishes the 15/16-inch master in this remote-reservoir kit. The captured manual pushrod works with a matched pedal, while the included left-hand valve and formed tubes organize pressure control beside the cylinder. Wilwood Engineering designs and manufactures disc brake systems in Camarillo, California. Bill Wood founded the company in 1977; its range now encompasses calipers, rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications. Each component must suit the hydraulic and mechanical requirements of the complete system.

Technical Details

• Manufacturer part number: 261-14250-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
• 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

Select the bore using the brake package and pedal ratio. Verify the 3/8-24 linkage connection, full return position and fluid-feed routing; the supplied reservoirs may mount directly or remotely when the installation follows DS-1189.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS1189 instructions and specifications
• Wilwood FL162 instructions and specifications
• Wilwood FL467 instructions and specifications
• Wilwood DS1178 instructions and specifications

PMB Performance brings over 20 years of brake-system experience to component selection. Send the installed cylinder, pedal and connection details if you need help checking this configuration.