{"product_id":"wilwood-120-13339","title":"Wilwood Small-Bore Aero4 Anodized Caliper, Nominal 1.25-Inch Rotor Width \/ 1.12-Inch Bores","description":"\u003cp\u003eThis Type III anodized Wilwood AERO4 combines four equal 1.12-inch stainless pistons with a forged radial-mount body. Its 6617 pad cavity and 7.09-inch mounting centers identify the principal friction and attachment layout. 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: 120-13339. Component: Aero4 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\u003ePad fit is type 6617. Match the pad dimensions and compound to the rotor and intended braking conditions.\u003c\/li\u003e\n\u003cli\u003ePiston dust boots: not fitted.\u003c\/li\u003e\n\u003cli\u003eCaliper weight: approximately 6.9 lb.\u003c\/li\u003e\n\u003cli\u003eBracket interface: 7.09-inch radial centers with 0.45-inch holes. Specified mount height: 2.09 inches; orientation: universal.\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 1.25 inch; compatible outside diameter from 12.19 through 15.00 inches. Confirm the usable minimum and maximum rotor width before installation.\u003c\/li\u003e\n\u003cli\u003eConstruction and surface: forged aluminum housing finished in Type III anodize.\u003c\/li\u003e\n\u003cli\u003eBore configuration 1.12 inches across 4 pistons; piston material: stainless steel. Hydraulic effective area: 1.98 square inches.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eHave the rotor-width specification confirmed before ordering this particular configuration. Provide the intended rotor dimensions and bracket drawing so caliper clearance can be established, including the 2.09-inch mounting height and wheel envelope.\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":67764020347058,"sku":"120-13339","price":522.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/Aero4_Radial_Mount_Ano-xl_1d076d69-eaa1-4250-b192-87637d57fb99.jpg?v=1792508704","url":"https:\/\/pmbperformance.com\/products\/wilwood-120-13339","provider":"PMB Performance","version":"1.0","type":"link"}