{"product_id":"wilwood-120-17771","title":"Wilwood Forged Dynalite-M Anodized Caliper with Four 1.75-Inch Pistons and 0.81-Inch Rotor Channel","description":"\u003cp\u003eFour 1.75-inch stainless pistons provide 4.80 square inches of effective area in this anodized Wilwood Dynalite-M. The forged body retains the nominal 0.81-inch rotor-width arrangement and outboard-clearance design associated with the Classic-style brake family. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. It designs and manufactures disc braking systems for motorsport, street-performance and specialized applications, with a component range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-17771. Type: Forged Dynalite-M caliper.\u003c\/li\u003e\n\u003cli\u003eConstruction and surface: forged aluminum, finished in Type III Anodize.\u003c\/li\u003e\n\u003cli\u003eAttachment geometry: lug mount with 5.25-inch centers; universal. 0.39-inch holes; 2.03-inch mounting height.\u003c\/li\u003e\n\u003cli\u003eBore sequence 1.75\/1.75 inches across 4 pistons. Piston construction: stainless steel; specified effective area 4.80 square inches.\u003c\/li\u003e\n\u003cli\u003ePad fit uses shape 7112. Match the pad to the rotor and intended operating conditions.\u003c\/li\u003e\n\u003cli\u003eRotor dimensions: outside diameter 10.00–12.19 inches; nominal width 0.81 inch, with width limits of 0.75–0.83 inch.\u003c\/li\u003e\n\u003cli\u003ePiston dust boots: no.\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 1\/8-27 NPT. Match the fitting thread and sealing arrangement to the brake hose.\u003c\/li\u003e\n\u003cli\u003eComponent: one individual hydraulic brake caliper. Select the mating rotor, pads, mounting hardware and line connection to suit the complete brake assembly.\u003c\/li\u003e\n\u003cli\u003eCaliper component weight: approximately 3.3 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eConfirm the larger piston area suits the master cylinder and intended brake balance. Compare the 5.25-inch mounting bracket, rotor hat and 7112 pad alignment before checking the actual wheel for clearance.\u003c\/p\u003e\u003cp\u003eWith 20+ years of experience, PMB Performance can help assess the brake hardware. Provide the caliper number, rotor dimensions and bracket measurements when asking about compatibility.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764638875826,"sku":"120-17771","price":201.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-17771-xl.jpg?v=1792514501","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-17771","provider":"PMB Performance","version":"1.0","type":"link"}