{"product_id":"wilwood-160-3327a","title":"Wilwood Front Aluminum Sprint\/Midget Rotor, Three-Hole Hard-Anodized Design","description":"\u003cp\u003eThis Type III hard-anodized aluminum rotor uses a three-hole front-hub connection for specific Sprint and Midget racing applications. Its 0.31-inch section and drilled face are firmly identified, but conflicting manufacturer diameter references require confirmation before the exact ring is selected. Established in 1977 by Bill Wood, Wilwood develops its range around complete disc brake systems. The Camarillo, California manufacturer designs and manufactures calipers, rotors, master cylinders, valves, fittings and lines for motorsport, street performance and specialized applications. Installation geometry, pad selection and braking duty should be considered together when choosing this component.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number:\u003c\/strong\u003e 160-3327A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e One rotor; not an axle pair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal thickness:\u003c\/strong\u003e 0.31 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Solid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriction surface:\u003c\/strong\u003e Drilled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Type III Ano\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate weight:\u003c\/strong\u003e 1.80 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory burnished:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamically balanced:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation orientation:\u003c\/strong\u003e Non-directional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor attachment pattern:\u003c\/strong\u003e 3 x 5.00 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotor mounting hole \/ thread:\u003c\/strong\u003e 0.516 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegistration \/ lug inside diameter:\u003c\/strong\u003e 3.88 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside-diameter references:\u003c\/strong\u003e Product page: 10.95 inches; flyer FL506: 10.20 inches; confirmation required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use and restrictions:\u003c\/strong\u003e The product page recommends Purple compound pads; see the compatibility confirmation below. Restricted racing applications only, including dirt Sprint and Midget racing. Unsafe for street use and unsuitable for most forms of racing. Misuse can cause catastrophic failure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe hat or hub, fasteners, caliper and pads are not included.\u003c\/p\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eFor the specified 3 x 5.00-inch Sprint\/Midget front hub only. Unsafe for street use and unsuitable for most forms of racing; misuse can cause catastrophic failure. Resolve the diameter and pad-compound discrepancies described below before installation.\u003c\/p\u003e\u003cp\u003ePad-compound confirmation: the current rotor page recommends Purple compound, while Wilwood flyer FL506 specifies PolyMatrix Q for the hard-anodized aluminum rotors. Obtain Wilwood’s current recommendation for the exact rotor and caliper before selecting pads; these references should not be treated as interchangeable approvals.\u003c\/p\u003e\u003cp\u003eDiameter confirmation: Wilwood’s exact product page lists 10.95 inches, but its FL506 flyer and aluminum-rotor press release assign 10.20 inches to this part. The linked drawing contains generic dimension labels without numeric values. Confirm the physical rotor diameter with Wilwood before purchase; neither reference is assumed to override the other.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.wilwood.com\/Rotors\/RotorProd?itemno=160-3327A\"\u003eWilwood product specifications\u003c\/a\u003e · \u003ca href=\"https:\/\/www.wilwood.com\/Images\/Rotors\/Rotor_Drawings-Large\/Aluminum-Sprint-Midget-Rotor-3H-dw-lg.jpg\"\u003eRotor dimension diagram\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eFor more than 20 years, PMB Performance has helped customers choose brake components. Share the details of your current setup for assistance with rotor selection.\u003c\/p\u003e","brand":"Wilwood","offers":[{"title":"Default Title","offer_id":67730087674034,"sku":"160-3327A","price":104.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/8792\/2610\/files\/160-3327A-xl.jpg?v=1792172888","url":"https:\/\/pmbperformance.com\/products\/wilwood-160-3327a","provider":"PMB Performance","version":"1.0","type":"link"}