{"product_id":"wilwood-120-11134-si","title":"Wilwood Rear Side-Inlet FSLI Sprint Caliper, 1.75-Inch Bores \/ 0.81-Inch Rotor Width","description":"\u003cp\u003eWilwood side-inlet Forged Superlite Internal for a matched sprint-car inboard rear brake. Check four 1.75-inch pistons, 3.50-inch lugs and 0.81-inch rotor width. The side inlet is documented for sprint-car inboard rear use; match the actual bracket and rotor arrangement. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components. Founded by Bill Wood in 1977, its range includes 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: 120-11134-SI. Component: Forged Superlite Internal caliper.\u003c\/li\u003e\n\u003cli\u003eSupply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.\u003c\/li\u003e\n\u003cli\u003ePiston dust boots: not fitted.\u003c\/li\u003e\n\u003cli\u003eBody: forged aluminum; finish: Type III anodize.\u003c\/li\u003e\n\u003cli\u003eCompatible brake pad shape: 7420; choose the required compound for the brake system.\u003c\/li\u003e\n\u003cli\u003eMounting: lug, 3.50-inch centers; universal orientation. Mount holes: 0.45 inch; height: 2.85 inches.\u003c\/li\u003e\n\u003cli\u003ePistons: 4 stainless steel; bore specification: 1.75 inches. Effective piston area: 4.80 sq in.\u003c\/li\u003e\n\u003cli\u003eRotor compatibility: nominal width 0.81 inch; diameter 11.75–13.06 inches. Specified rotor-width limits: 0.75–0.84 inch.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 5.2 lb.\u003c\/li\u003e\n\u003cli\u003eHydraulic inlet thread: 1\/8-27 NPT. Use a fitting with the correct thread and sealing seat.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eConfirm that the side inlet clears the bracket and surrounding driveline. Match the 3.50-inch lugs and 7420 pad sweep to the inboard rotor; the connection arrangement is separate from the bore and finish.\u003c\/p\u003e\u003cp\u003eWith 20+ years of experience, PMB Performance can help compare the actual brake hardware. Supply the caliper number, rotor dimensions and mounting measurements when asking about compatibility.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764005830834,"sku":"120-11134-SI","price":283.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-11134-SI-xl.jpg?v=1792508559","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-11134-si","provider":"PMB Performance","version":"1.0","type":"link"}