Wilwood Left 14.25-inch Spec-37 GT Rotor, 1.10-inch Width and Slotted Face

For the left side of a 14.25-inch brake assembly, this plain-finish GT rotor provides a slotted Spec-37 friction ring. The 1.10-inch section and 72-vane curved layout are separate selection requirements from its twelve-bolt attachment pattern. Since its founding by Bill Wood in 1977, Wilwood Engineering has designed and manufactured disc brake systems from Camarillo, California. The product range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized installations. Each selection must meet the requirements of the complete brake system.

Technical Details

• Manufacturer part number: 160-11312
• Diameter and thickness: 14.25 inches diameter x 1.10 inches wide
• Ring material: Spec-37 Iron
• Face pattern and coating: GT Slotted; Plain
• Internal layout: 72 CV; curved
• Mounting direction: Left-hand
• Balancing and burnishing: Factory burnished no; balanced yes
• Opposite-side component, ordered separately: 160-11311
• Rotor-to-hat/hub attachment circle: 12 x 8.75 inches
• Attachment hole size or thread: 0.251 inches
• Center / lug registration: 8.25 inches
• Far-side inside diameter: 10.00 inches
• Approximate component weight: 15.80 lb
• Quantity: one rotor ring; hat, hub, mounting hardware, calipers and pads are separate

Fitment & Compatibility

For an assembly designed around a 14.25 x 1.10-inch friction ring. Use the correct rotor fasteners and hat, checking both the 12 x 8.75-inch attachment circle and the 8.25-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 can help you identify the matching brake components, drawing on over 20 years of experience. Include the current kit number and mounting measurements when requesting a fitment check.