Wilwood Rear Right SRP Rotor with 3.12-inch Register, Black, 11.00-inch Diameter

This right-hand SRP rotor uses the larger 3.12-inch center register while keeping the shallow 1.91-inch hat offset. It combines a black-coated drilled-and-slotted friction ring with the integral drum required by a compatible rear parking-brake system. Based in Camarillo, California, Wilwood Engineering was founded in 1977 by Bill Wood to design and manufacture disc brake systems and components. Its calipers, brake rotors, master cylinders, valves, fittings and brake lines serve motorsport, street-performance and specialized applications. Rotor selection is therefore a decision about the whole brake system and its mating parts.

Technical Details

• Manufacturer part number: 160-11521-BK
• Rotor size: 11.00 inches diameter x 0.81 inches wide
• Rotor material: Iron
• Face and finish: SRP Drilled & Slotted; Black electrocoat
• Vanes: 32 vanes
• Mounting direction: Right-hand
• Factory condition: Factory burnished no; balanced no
• Opposite-side component, ordered separately: 160-11522-BK
• Hat wheel-stud clearance pattern: 5 x 4.50/4.75/5.00 inches
• Stud clearance-hole sizes: 0.52 inches
• Center / lug registration: 3.12 inches
• Far-side inside diameter: 8.38 inches
• Hat offset: 1.910 inches
• Internal parking-drum diameter: 7.24 inches
• Inside clearance diameter: 7.16 inches
• Hat mounting-face thickness: 0.18 inches
• Approximate component weight: 11.70 lb
• Quantity: one rotor with integral hat; separate hub, pads, calipers, mounting hardware and any parking-brake mechanism are not included

Fitment & Compatibility

For the low-profile 11.00-inch rear disc/drum assembly requiring a 3.12-inch center and 1.91-inch offset. The larger center must match the actual axle registration; it must not be assumed equivalent to the 3.06-inch-register version. Check the selected five-lug clearance pattern and parking shoes.

Manufacturer reference: Wilwood rotor specifications

With more than 20 years of parts and brake-system experience, PMB Performance can help review the rotor, hat and caliper combination before you order.