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Product details
A plain-finish Spec-37 casting forms this left-side 14-inch GT ring. The 72 curved vanes and slotted working faces are combined with a twelve-hole flange, using an 8.25-inch register to locate the rotor on its hat. Established in 1977 by Bill Wood, Wilwood develops its range around complete disc brake systems. The Camarillo, California manufacturer designs and manufactures calipers, rotors, master cylinders, valves, fittings and lines for motorsport, street performance and specialized applications. Installation geometry, pad selection and braking duty should be considered together when choosing this component.
Technical Details
- Manufacturer part number: 160-8399
- Quantity: One rotor; not an axle pair
- Outside diameter: 14.00 inches
- Nominal thickness: 1.25 inches
- Rotor material: Spec-37 Iron
- Construction: 72 curved vanes
- Friction surface: GT Slotted
- Finish: Plain
- Approximate weight: 17.50 lb
- Factory burnished: No
- Dynamically balanced: Yes
- Installation orientation: Left-hand
- Rotor attachment pattern: 12 x 8.75 inches
- Rotor mounting hole / thread: 0.251 inches
- Registration / lug inside diameter: 8.25 inches
- Far-side inside diameter: 10.00 inches
- Opposite-hand companion rotor: 160-8398 (sold separately)
- Intended use and restrictions: Suitable for high-temperature racing and street use. Spec-37 heavy-wall castings.
The hat or hub, fasteners, caliper and pads are not included.
Fitment & Compatibility
Verify the 0.251-inch mounting holes and 10.00-inch far-side clearance. Check the exact 1.25-inch caliper arrangement before choosing a ring in the 14-inch family.
Wilwood product specifications · Rotor dimension diagram
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