{"product_id":"wilwood-120-12603","title":"Wilwood FNSL4R-ST Thermlock Brake Caliper, 1.12-Inch Pistons \/ Type III \/ 1.10-Inch Rotor Width","description":"\u003cp\u003eThe FNSL4R-ST small-bore caliper carries four 1.12-inch Thermlock pistons in an anodized forged body. It combines 1.98 square inches of effective area with a nominal 1.10-inch rotor-width channel. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems, from calipers and brake rotors to master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized use.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-12603. Component: Forged Narrow Superlite 4 Radial Mount 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\u003eBracket interface: 5.98-inch radial centers with 0.39-inch holes. Specified mount height: 1.45 inches; orientation: universal.\u003c\/li\u003e\n\u003cli\u003eBore configuration 1.12 inches across 4 pistons; piston material: Thermlock. Hydraulic effective area: 1.98 square inches.\u003c\/li\u003e\n\u003cli\u003ePiston dust boots: not fitted.\u003c\/li\u003e\n\u003cli\u003eConstruction and surface: forged aluminum housing finished in Type III anodize.\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\u003cli\u003eNominal rotor width 1.10 inch; compatible outside diameter from 11.75 through 14.00 inches. Specified rotor-width limits: 1.00–1.10 inch.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 5.0 lb.\u003c\/li\u003e\n\u003cli\u003ePad fit is type 7416. Match the pad dimensions and compound to the rotor and intended braking conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eSelect the small-bore Thermlock assembly deliberately. Confirm 7416 pads and 5.98-inch radial mounting, checking the rotor centerline and full wheel clearance before installation.\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":67764016578738,"sku":"120-12603","price":577.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Forged_Narrow_Superlite_4_Rdl_Mt-ST-Ano-xl_e8d8669f-1097-4c9b-b8a7-808cfb8b5a88.jpg?v=1792508648","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-12603","provider":"PMB Performance","version":"1.0","type":"link"}