{"product_id":"wilwood-120-13228","title":"Wilwood Left FSL4R Radial Brake Caliper, Differential 1.88\/1.75-Inch Bores \/ 1.25-inch Rotor Width","description":"\u003cp\u003eA four-piston fixed caliper for the left side, this Forged Superlite 4R has 1.88\/1.75-inch stainless bores and a hard-anodized body. Its radial attachment places the mounting adjustment in a different arrangement from a conventional lug-mount Superlite. Bill Wood founded Wilwood Engineering in 1977, and the company is based in Camarillo, California. It designs and manufactures disc brake systems and a component range of calipers, brake rotors, master cylinders, valves, fittings and brake lines serving motorsport, street-performance and specialized installations.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number: 120-13228. Component: Forged 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\u003ePistons: 4 stainless steel; bore specification: 1.88\/1.75 inches. Effective piston area: 5.18 sq in.\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\u003eRotor compatibility: nominal width 1.25 inch; diameter 11.75–14.00 inches. Specified rotor-width limits: 1.15–1.35 inch.\u003c\/li\u003e\n\u003cli\u003eCompatible brake pad shape: 7420; choose the required compound for the brake system.\u003c\/li\u003e\n\u003cli\u003ePiston dust boots: not fitted.\u003c\/li\u003e\n\u003cli\u003eMounting: radial, 5.98-inch centers; left hand orientation. Mount holes: 0.39 inch; height: 1.63 inches.\u003c\/li\u003e\n\u003cli\u003eBody: forged aluminum; finish: Type III anodize.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 5.2 lb.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eEstablish the rotor centerline before choosing a 5.98-inch radial bracket. Check type 7420 pad clearance, the 1.25-inch nominal rotor width and the hydraulic area required by the existing master cylinder.\u003c\/p\u003e\u003cp\u003eFor a replacement or custom installation, send PMB Performance the brake dimensions and existing component identification. Our 20+ years of experience can help narrow down the correct combination.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67764017201330,"sku":"120-13228","price":302.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/120-13228-xl.jpg?v=1792508654","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-13228","provider":"PMB Performance","version":"1.0","type":"link"}