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Product details
Left-hand vane direction and a 7.15-inch attachment circle identify this thick GT ring. The 12.90-inch Spec-37 casting carries slotted faces and 48 curved vanes, with a compact center flange that differs from the large-register twelve-bolt families. Founded by Bill Wood in 1977, Wilwood designs and manufactures disc brake systems in Camarillo, California. Its range includes calipers, rotors, master cylinders, valves, fittings and lines for motorsport, street performance and specialized applications. Rotor choice belongs within that complete system: the caliper, pad, mounting hardware and intended duty must work together.
Technical Details
- Manufacturer part number: 160-6844
- 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: Left-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: 160-6843 (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
Match the 0.316-inch holes and 6.25-inch registration diameter. Confirm the caliper is designed for the 1.38-inch section and the pad sweep suits the 12.90-inch ring.
Wilwood product specifications · Rotor dimension diagram
For more than 20 years, PMB Performance has helped customers choose brake components. Share the details of your current setup for assistance with rotor selection.
