{"product_id":"wilwood-120-12501-bk","title":"Wilwood FNSL4R Black Caliper for 1.25-Inch-Wide Rotors, Four 1.75-Inch Bores","description":"\u003cp\u003eThis black FNSL4R pairs four equal 1.75-inch stainless pistons with a wide nominal 1.25-inch rotor-width channel. It provides 4.80 square inches of effective piston area while retaining the narrow 7416 pad geometry. For motorsport, street-performance and specialized braking applications, Wilwood Engineering designs and manufactures calipers, brake rotors, master cylinders, valves, fittings and brake lines. The disc brake company was founded by Bill Wood in 1977 and is based in Camarillo, California.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-12501-BK. 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\u003eNominal rotor width 1.25 inch; compatible outside diameter from 11.75 through 14.00 inches. Specified rotor-width limits: 1.19–1.25 inch.\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\u003eBore configuration 1.75 inches across 4 pistons; piston material: stainless steel. Hydraulic effective area: 4.80 square inches.\u003c\/li\u003e\n\u003cli\u003eConstruction and surface: forged aluminum housing finished in Black powder coat.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 5.0 lb.\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\u003ePiston dust boots: not fitted.\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\u003eMatch the larger hydraulic area to the required brake balance. The wide rotor's offset must agree with the 5.98-inch radial bracket; a narrower FNSL4R body can share the same bolt spacing.\u003c\/p\u003e\u003cp\u003ePMB Performance has worked with brake components for over 20 years. Share the required piston sizing, rotor measurements and bracket drawing for help checking the match.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764016414898,"sku":"120-12501-BK","price":394.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Forged_Narrow_Superlite_4_Radial_Mt-xl_7ff81d55-7ca1-443c-bdba-1f695b14343c.jpg?v=1792508645","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-12501-bk","provider":"PMB Performance","version":"1.0","type":"link"}