Wilwood Right Black GTB Rotor, 12.19-inch Slotted Ring with 0.81-inch Width

The black GTB finish adds coating to this right-side 36-vane rotor. Its 12.19-inch diameter and 0.81-inch width remain the governing brake dimensions, while the supplied manufacturer image illustrates measurement locations rather than showing the finished part. Wilwood Engineering's disc brake systems are designed and manufactured for motorsport, street-performance and specialized applications. Founded in 1977 by Bill Wood and based in Camarillo, California, the company makes calipers, brake rotors, master cylinders, valves, fittings and brake lines. These individual parts must be chosen to work within the complete braking system.

Technical Details

• Manufacturer part number: 160-12291-GTB
• Friction dimensions: 12.19 inches diameter x 0.81 inches wide
• Construction: Spec-37 Iron
• Surface treatment: GT Slotted; Black electrocoat
• Cooling layout: 36 CV; curved
• Mounting direction: Right-hand
• Supplied preparation: Balanced: yes; factory burnished: no
• Opposite-side component, ordered separately: 160-12292-GTB
• Rotor-to-hat/hub attachment circle: 8 x 7.00 inches
• Attachment hole size or thread: 0.326 inches
• Center registration: 6.38 inches
• Far-side inside diameter: 8.56 inches
• Approximate weight: 9.60 lb
• Quantity: one rotor ring; hat, hub, mounting hardware, calipers and pads are separate

Fitment & Compatibility

For an assembly designed around a 12.19 x 0.81-inch friction ring. Use the correct rotor fasteners and hat, checking both the 8 x 7.00-inch attachment circle and the 6.38-inch registration. Determine axle suitability from the complete brake kit, not from the rotor's diameter. 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.