{"product_id":"wilwood-120-14439-bk","title":"Wilwood Black FNSL4R-DS Caliper with 4 Pistons, Radial Mounting, 1.25-Inch Bore","description":"\u003cp\u003eThe black Wilwood Forged Narrow Superlite 4R Dust Seal combines four 1.25-inch stainless pistons with piston dust protection. Its 5.98-inch radial attachment pattern and nominal 1.10-inch rotor-width capacity identify this configuration. A compatible bracket must also match the rotor radius and centerline. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, Wilwood designs and manufactures disc brake systems and parts for motorsport, street-performance and specialized applications, from calipers and rotors to master cylinders, valves, fittings and brake lines.\u003c\/p\u003e\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 120-14439-BK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Wilwood Forged Narrow Superlite 4R Dust Seal; one caliper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor width:\u003c\/strong\u003e 1.10-inch nominal; 1.00–1.10-inch permitted range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor diameter range:\u003c\/strong\u003e 11.75–14.00 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e universal side configuration; Radial; 5.98-inch centers; 0.39-inch mounting holes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount height:\u003c\/strong\u003e 1.45 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston arrangement:\u003c\/strong\u003e 4 pistons; 1.25-inch bores; stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic piston area:\u003c\/strong\u003e 2.46 square inches, as specified by Wilwood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePad shape:\u003c\/strong\u003e Wilwood type 7416; compound selected separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody and finish:\u003c\/strong\u003e Forged aluminum; Black Powder Coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust boots:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid inlet:\u003c\/strong\u003e 1\/8-27 NPT\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe dust-seal Superlite 4R uses four equal-bore pistons and a radial mounting pattern. Its piston wipers provide environmental sealing; they do not replace the need to select pads, fluid and rotor dimensions for the intended service.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eCheck the caliper-to-bracket attachment and rotor offset before ordering. Changing piston diameter changes hydraulic requirements even when a different caliper shares the same bolt spacing.\u003c\/p\u003e\u003cp\u003eThis listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.\u003c\/p\u003e\u003cp\u003eAsk PMB Performance for help comparing this caliper with your existing assembly. Our over 20 years of experience are most useful when you provide rotor size, mounting details and the current piston configuration.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764035453106,"sku":"120-14439-BK","price":467.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-14439-BK-xl.jpg?v=1792508898","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-14439-bk","provider":"PMB Performance","version":"1.0","type":"link"}