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Product details
This right-hand GT rotor combines a 12.90-inch outside diameter with the compact twelve-on-7.15-inch mounting arrangement. Its thick 1.38-inch Spec-37 section and 48 curved vanes suit the complete brake package specified for that geometry. A rotor must suit both the mechanical installation and the rest of the braking system. Wilwood brings that system perspective to its calipers, rotors, master cylinders, valves, fittings and lines, designing and manufacturing disc brake systems for motorsport, street performance and specialized applications. Bill Wood founded the Camarillo, California company in 1977.
Technical Details
- Manufacturer part number: 160-6843
- Quantity: One rotor; not an axle pair
- Outside diameter: 12.90 inches
- Nominal thickness: 1.38 inches
- Rotor material: Spec-37 Iron
- Construction: 48 curved vanes
- Friction surface: GT Slotted
- Finish: Plain
- Approximate weight: 19.30 lb
- Factory burnished: No
- Dynamically balanced: Yes
- Installation orientation: Right-hand
- Rotor attachment pattern: 12 x 7.15 inches
- Rotor mounting hole / thread: 0.316 inches
- Registration / lug inside diameter: 6.25 inches
- Far-side inside diameter: 7.86 inches
- Opposite-hand companion rotor: 160-6844 (sold separately)
- Intended use and restrictions: Suitable for moderate-temperature racing and street use. Spec-37 heavy-wall castings.
The hat or hub, fasteners, caliper and pads are not included.
Fitment & Compatibility
Check the 6.25-inch register, 0.316-inch holes and 7.86-inch far-side inside diameter. Other twelve-bolt GT rings use different circle diameters and are not direct substitutes.
Wilwood product specifications · Rotor dimension diagram
PMB Performance has supported brake projects for more than 20 years. Our team can help identify the correct replacement when your caliper, hat or hub configuration needs a closer look.
