{"product_id":"wilwood-261-13271","title":"Wilwood Left-Valve Manual Master Cylinder Kit, Bare 7\/8-inch Tandem with Pushrod","description":"\u003cp\u003eA captured threaded pushrod connects this bare 7\/8-inch tandem master to a suitable manual pedal. The accompanying combination valve sits on the left bracket, joined to the master by formed stainless tubes. Based in Camarillo, California, Wilwood Engineering has designed and manufactured disc brake systems since Bill Wood founded the company in 1977. Its fittings, valves, calipers, brake lines, master cylinders and rotors are used across motorsport, street-performance and specialized applications. Matching a component means checking both its own specification and the braking assembly around it.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 261-13271\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid capacity:\u003c\/strong\u003e 8.0 \/ 4.8 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange-to-end length:\u003c\/strong\u003e 8.15\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 12.26\"\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 4.11\" x 3\/8-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Bare\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, left-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\u003eCheck the pedal clevis for the 3\/8-24 pushrod and confirm enough travel for the full 1.10-inch stroke. This general rod version is not the Mustang eyelet assembly; verify flange spacing and the left-side valve clearance separately.\u003c\/p\u003e\u003ch3\u003eManufacturer Documents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/MasterCylinders\/MasterCylinderProd?itemno=261-13271\" target=\"_blank\" rel=\"noopener\"\u003eWilwood product specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/DataSheets\/ds985.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood DS985 instructions and specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.wilwood.com\/PDF\/Flyers\/fl331.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood FL331 instructions and 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\/ds487.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWilwood DS487 instructions and specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePMB Performance has more than 20 years of experience matching brake components. Share the actual mounting, linkage and hydraulic arrangement when requesting fitment assistance.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67731109970098,"sku":"261-13271","price":409.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/261-13271-xl.jpg?v=1792184241","url":"https:\/\/pmbperformance.com\/products\/wilwood-261-13271","provider":"PMB Performance","version":"1.0","type":"link"}