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Product details
A left-hand SRP surface pattern identifies this rear rotor while the 1.910-inch hat offset determines its position in the assembly. The iron casting combines a 12.19-inch vented ring with a 7.24-inch parking drum and three stud-clearance circles. System compatibility is central to choosing a replacement rotor, including its relationship to the caliper, pad and mounting hardware. Wilwood designs and manufactures disc brake systems in Camarillo, California, offering calipers, rotors, master cylinders, valves, fittings and lines across motorsport, street performance and specialized applications. The company was founded in 1977 by Bill Wood.
Technical Details
- Manufacturer part number: 160-9813-BK
- Quantity: One rotor; not an axle pair
- Outside diameter: 12.19 inches
- Nominal thickness: 0.81 inches
- Rotor material: Iron
- Construction: 32 vanes
- Friction surface: SRP Drilled & Slotted
- Finish: Black Electro Coat
- Approximate weight: 14.40 lb
- Factory burnished: No
- Dynamically balanced: No
- Installation orientation: Left-hand
- Registration / lug inside diameter: 3.06 inches
- Far-side inside diameter: 8.38 inches
- Rotor offset: 1.910 inches
- Internal parking-brake drum diameter: 7.24 inches
- Internal clearance diameter: 7.16 inches
- Mounting-face thickness: 0.18 inches
- Hat wheel-stud clearance pattern: 5 x 4.50/4.75/5.00 inches
- Wheel-stud clearance hole diameter: 0.52 inches
- Opposite-hand companion rotor: 160-9812-BK (sold separately)
- Intended use and restrictions: Register adapters from 2.00 to 2.86 inches are available separately. The 3.06-inch register accepts the specified adapter rings. Rear rotor for compatible internal-drum parking-brake kits.
The integral hat is part of the rotor; caliper, pads, parking-brake mechanism and installation hardware are separate.
Fitment & Compatibility
Verify the 3.06-inch register and correct adapter for the axle flange. Match the entire rear package, including parking shoes, rather than relying on one of the hat’s clearance patterns.
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.
