Wilwood Right GT 72-Vane Rotor, 14.00 x 1.25-inch with 8.25-inch Bolt Circle

This right GT ring brings asymmetrical slots to the 14.00-inch heavy-wall configuration. The twelve-on-8.25-inch attachment and 7.75-inch registration identify its mounting interface, while 72 curved vanes establish the required rotational orientation. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California, where it designs and manufactures disc brake systems and components. Calipers, brake rotors, master cylinders, valves, fittings and brake lines serve motorsport, street-performance and specialized applications; each part must suit the complete brake system.

Technical Details

• Manufacturer part number: 160-12391
• Friction dimensions: 14.00 inches diameter x 1.25 inches wide
• Construction: Spec-37 Iron
• Surface treatment: GT Slotted; Plain
• Cooling layout: 72 CV; curved
• Mounting direction: Right-hand
• Supplied preparation: Balanced: yes; factory burnished: no
• Opposite-side component, ordered separately: 160-12392
• Rotor-to-hat/hub attachment circle: 12 x 8.25 inches
• Attachment hole size or thread: 0.250 inches
• Center registration: 7.75 inches
• Far-side inside diameter: 9.00 inches
• Approximate weight: 21.70 lb
• Quantity: one rotor ring; hat, hub, mounting hardware, calipers and pads are separate

Fitment & Compatibility

Compare the existing hat interface with the 12 x 8.25-inch rotor pattern, then check the 7.75-inch centering register. Proper axial placement and full pad contact are required around the 14.00-inch ring. A matching wheel-bolt pattern is not a substitute for this rotor-to-hat check. Select pads and operating duty to suit the rotor material and the intended brake system.

Manufacturer reference: Wilwood rotor specifications

PMB Performance brings over 20 years of brake and parts experience to component selection. Send the existing rotor identification and brake-kit details if you need help confirming the match.