{"product_id":"wilwood-261-15663-bk","title":"Wilwood Black Mustang Manual Master Kit, 7\/8-Inch Compact Tandem with Right Valve","description":"\u003cp\u003eThe Mustang manual pushrod extends the mechanical connection of this black 7\/8-inch compact kit. Its combination valve is mounted on the right, with tubes supplied for the master-to-valve circuits. Disc brake systems and components are the focus of Wilwood Engineering's design and manufacturing work for street-performance, specialized and motorsport applications. Bill Wood founded the Camarillo, California company in 1977. Its master cylinders, calipers, fittings, valves, brake lines and rotors are chosen according to the needs of the complete brake system.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 261-15663-BK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder bore:\u003c\/strong\u003e 7\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure circuits:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke Length:\u003c\/strong\u003e 1.10 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir Type:\u003c\/strong\u003e Integral tandem chambers, 7.8 and 4.7 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid capacity:\u003c\/strong\u003e 7.8 \/ 4.7 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange-to-end length:\u003c\/strong\u003e 6.55\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 12.32\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting centers:\u003c\/strong\u003e 3.22–3.40\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePushrod dimensions:\u003c\/strong\u003e 5.75\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black E-coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNative pressure ports:\u003c\/strong\u003e 1\/2-20 at both circuits; use the correct included outlet adapters and seal washers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit outlet adapters:\u003c\/strong\u003e Primary: 3\/8-24 or 1\/2-20 inverted flare; secondary: 3\/8-24 or 9\/16-18 inverted flare\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic relationship:\u003c\/strong\u003e Equal pressure output from the two circuits before external proportioning; 2:1 primary\/secondary volume relationship\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService:\u003c\/strong\u003e Factory rebuild only; do not disassemble the tandem piston assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit contents:\u003c\/strong\u003e Master cylinder, right-side combination proportioning valve and bracket, formed stainless connecting tubes and mounting hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombination-valve functions:\u003c\/strong\u003e Adjustable rear pressure, isolated front\/rear circuits, front-line junction and hydraulic brake-light switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eConfirm the documented classic Mustang pedal and flange. Match the pushrod clevis and available right-side space before setting free play.\u003c\/p\u003e\u003cp\u003eWilwood’s kit summary gives a 1964–1973 Ford\/Mustang range, while the corresponding bare-master family identifies 1964–1972. Confirm the actual manual pedal, supplied eyelet and mounting geometry, particularly for 1973, before ordering.\u003c\/p\u003e\u003ch3\u003eManufacturer Documents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/MasterCylinders\/MasterCylinderProd?itemno=261-15663-BK\" target=\"_blank\" rel=\"noopener\"\u003eWilwood product specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/Flyers\/fl162.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood FL162 instructions and specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1287.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood DS1287 instructions and specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds1178.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood DS1178 instructions and specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/Flyers\/fl311.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood FL311 instructions and specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWith 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.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67731112853682,"sku":"261-15663-BK","price":535.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/261-15663-BK-xl.jpg?v=1792184285","url":"https:\/\/pmbperformance.com\/products\/wilwood-261-15663-bk","provider":"PMB Performance","version":"1.0","type":"link"}