Wilwood Left Slotted GT Rotor, 13.06 x 1.25-inch with Dynamic Twelve-Lug Mount

A left-hand 48-vane casting supports this 13.06-inch dynamic-mount GT rotor. It is supplied without factory burnishing, with a 1.25-inch friction section and a dedicated twelve-lug attachment rather than bolt holes. The broader Wilwood range covers calipers, brake rotors, master cylinders, valves, fittings and brake lines. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California, designing and manufacturing disc brake systems for motorsport, street-performance and specialized applications. Individual components must be coordinated with the complete braking system.

Technical Details

• Manufacturer part number: 160-15872
• Friction dimensions: 13.06 inches diameter x 1.25 inches wide
• Construction: Spec-37 Iron
• Surface treatment: GT Slotted; Plain
• Cooling layout: 48 CV; curved
• Mounting direction: Left-hand
• Supplied preparation: Balanced: yes; factory burnished: no
• Opposite-side component, ordered separately: 160-15871
• Dynamic-lug mounting interface: 12 x 8.80 inches
• Mounting interface: Lug
• Center registration: 8.12 inches
• Far-side inside diameter: 9.46 inches
• Approximate weight: 12.95 lb
• Quantity: one rotor ring; hat, hub, mounting hardware, calipers and pads are separate

Fitment & Compatibility

This left-hand 13.06-inch replacement uses the larger 8.80-inch dynamic interface. Inspect the existing lug carrier and retention hardware as part of the replacement, and verify its 8.12-inch register. An unburnished friction surface still needs the bedding procedure appropriate to the selected pads.

Manufacturer reference: Wilwood rotor specifications

Choosing a rotor involves more than its outside diameter. PMB Performance's 20-plus years of brake and parts experience can help you check the component against your existing assembly.