{"product_id":"wilwood-120-17204","title":"Wilwood XRS4R Anodized Four-Piston Caliper for 0.95-Inch-Wide Brake Rotors","description":"\u003cp\u003eThis anodized Wilwood XRS4R is built around a nominal 0.95-inch rotor-width channel. The four 1.38-inch bores, internal fluid passages and forged X-bridge body make it a distinct intermediate-width configuration within the radial-mount range. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-17204. Type: Forged XRS4R Radial Mount caliper.\u003c\/li\u003e\n\u003cli\u003eBore sequence 1.38\/1.38 inches across 4 pistons. Piston construction: stainless steel; specified effective area 3.00 square inches.\u003c\/li\u003e\n\u003cli\u003eRotor dimensions: outside diameter 11.75–14.00 inches; nominal width 0.95 inch, with width limits of 0.89–0.99 inch.\u003c\/li\u003e\n\u003cli\u003eAttachment geometry: radial mount with 5.98-inch centers; universal. 0.39-inch holes; 1.45-inch mounting height.\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\u003eConstruction and surface: forged aluminum, finished in Type III Anodize.\u003c\/li\u003e\n\u003cli\u003ePad fit uses shape 10416. Match the pad to the rotor and intended operating conditions.\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\u003ePiston dust boots: no.\u003c\/li\u003e\n\u003cli\u003eCaliper component weight: approximately 5.0 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eConfirm a rotor between 0.89 and 0.99 inch wide, then check hat offset and the 11.75–14.00-inch diameter envelope. Pad alignment and wheel clearance still depend on the bracket used.\u003c\/p\u003e\u003cp\u003ePMB Performance has over 20 years of brake-component experience. Send the existing caliper identification, rotor measurements and mounting details for help comparing this configuration.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764578582706,"sku":"120-17204","price":636.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-17204-xl.jpg?v=1792514382","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-17204","provider":"PMB Performance","version":"1.0","type":"link"}