{"product_id":"wilwood-120-18054-rd","title":"Wilwood Red Four-Piston Narrow DynaPro Caliper, 4.75-Inch Radial Spacing","description":"\u003cp\u003eRed finish, 4.75-inch radial mounting and four 1.75-inch bores identify this Narrow DynaPro brake caliper. Its quarter-inch rotor opening belongs to a specific thin-pad package; a similar-looking DynaPro intended for a thicker rotor is not an equivalent replacement. The billet aluminum housing has an M10 x 1.25 inlet. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake systems and components serve motorsport, street-performance and specialized applications. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among its products, selected according to the complete brake system’s requirements.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-18054-RD\u003c\/li\u003e\n\u003cli\u003eCaliper type: Narrow Dynapro Radial Mount\u003c\/li\u003e\n\u003cli\u003eConstruction: Billet Aluminium\u003c\/li\u003e\n\u003cli\u003eFinish: Red Powder Coat\u003c\/li\u003e\n\u003cli\u003ePiston bores: 1.75 \/ 1.75 inches\u003c\/li\u003e\n\u003cli\u003ePiston type: Stainless\u003c\/li\u003e\n\u003cli\u003ePiston count: 4\u003c\/li\u003e\n\u003cli\u003ePublished piston area: 4.80 square inches\u003c\/li\u003e\n\u003cli\u003eDust boots: No\u003c\/li\u003e\n\u003cli\u003eNominal rotor width: 0.25 inch\u003c\/li\u003e\n\u003cli\u003eRotor thickness limits: 0.25–0.25 inches\u003c\/li\u003e\n\u003cli\u003eRotor diameter limits: 10.75–12.19 inches\u003c\/li\u003e\n\u003cli\u003eMounting style: Radial\u003c\/li\u003e\n\u003cli\u003eHandedness: Not restricted to one side; correct mounting and bleed orientation required\u003c\/li\u003e\n\u003cli\u003eMounting centers: 4.75 inches\u003c\/li\u003e\n\u003cli\u003eMounting-hole size: 0.39 inch\u003c\/li\u003e\n\u003cli\u003eMount height: 1.61 inch\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: M10 x 1.25\u003c\/li\u003e\n\u003cli\u003eRequired pad shape: 7812\u003c\/li\u003e\n\u003cli\u003ePublished pad area: 6.36 square inches\u003c\/li\u003e\n\u003cli\u003ePublished pad volume: 2.1 cubic inches\u003c\/li\u003e\n\u003cli\u003eManufacturer-listed component weight: 3.6 lb\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eUse the actual conversion drawing to establish bracket height and lateral alignment. Rotor diameters from 10.75 to 12.19 inches are listed for this part, but wheel clearance and pad overlap remain installation checks. Preserve a suitable bleed-screw position and evaluate the piston area with the master cylinder and the other axle’s brakes.\u003c\/p\u003e\u003cp\u003eFor help identifying the correct brake component, provide the caliper markings and installation dimensions. PMB Performance has over 20 years of experience with parts and brake-system details.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764642709682,"sku":"120-18054-RD","price":394.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-18054-RD-xl.jpg?v=1792514512","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-18054-rd","provider":"PMB Performance","version":"1.0","type":"link"}