Wilwood Left 12.19 x 1.25-inch GT Rotor with Slotted Faces and Plain Finish

This left GT friction ring provides the 12.19-inch diameter and 1.25-inch width used in its matching brake assembly. Plain finish, curved vanes and unburnished delivery distinguish the configuration without implying that a mounting hat is supplied. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems, including calipers, brake rotors, master cylinders, valves, fittings and brake lines. Its motorsport, street-performance and specialized components are selected around the requirements of the whole braking system.

Technical Details

• Manufacturer part number: 160-11840
• Rotor size: 12.19 inches diameter x 1.25 inches wide
• Rotor material: Spec-37 Iron
• Face and finish: GT Slotted; Plain
• Vanes: 48 CV; curved
• Mounting direction: Left-hand
• Factory condition: Factory burnished no; balanced yes
• Opposite-side component, ordered separately: 160-11839
• Rotor-to-hat/hub attachment circle: 8 x 7.00 inches
• Attachment hole size or thread: 0.316 inches
• Center / lug registration: 6.38 inches
• Far-side inside diameter: 8.41 inches
• Approximate component weight: 12.70 lb
• Quantity: one rotor ring; hat, hub, mounting hardware, calipers and pads are separate

Fitment & Compatibility

Select the separate hat for the 8 x 7.00-inch rotor-attachment pattern and 6.38-inch register. The 12.19-inch friction diameter and 1.25-inch section must agree with caliper placement and pad sweep. This mounting circle is independent of the vehicle's wheel-stud pattern. Select pads and operating duty to suit the rotor material and the intended brake system.

Manufacturer reference: Wilwood rotor specifications

With more than 20 years of parts and brake-system experience, PMB Performance can help review the rotor, hat and caliper combination before you order.