Wilwood Left GTB Rotor, Black Slotted Spec-37 Iron, 14.25 x 1.10-inch

A balanced left-hand GTB rotor suits a compatible system needing the thinner 1.10-inch version of this 14.25-inch ring. Black electrocoat and the asymmetrical slot layout distinguish the finish and friction surface without changing the Spec-37 base material. 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: 160-11312-GTB
• Friction dimensions: 14.25 inches diameter x 1.10 inches wide
• Construction: Spec-37 Iron
• Surface treatment: GT Slotted; Black electrocoat
• Cooling layout: 72 CV; curved
• Mounting direction: Left-hand
• Supplied preparation: Balanced: yes; factory burnished: no
• Opposite-side component, ordered separately: 160-11311-GTB
• Rotor-to-hat/hub attachment circle: 12 x 8.75 inches
• Attachment hole size or thread: 0.251 inches
• Center registration: 8.25 inches
• Far-side inside diameter: 10.00 inches
• Approximate weight: 15.80 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 8.75-inch rotor pattern, then check the 8.25-inch centering register. Proper axial placement and full pad contact are required around the 14.25-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.