Wilwood Rear Left 11.00-inch SRP Rotor, 1.91-inch Hat and 3.12-inch Center

The left-hand counterpart in this larger-register family centers through a 3.12-inch opening. Its 11.00-inch SRP friction ring and 1.91-inch offset must be matched together; substituting the smaller-register casting can prevent proper axle-flange seating. Disc brake systems and components are the work of Wilwood Engineering, founded by Bill Wood in 1977 and based in Camarillo, California. The company designs and manufactures calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications, with each component selected to match the complete system.

Technical Details

• Manufacturer part number: 160-11522-BK
• Outside diameter / width: 11.00 inches diameter x 0.81 inches wide
• Material specification: Iron
• Friction surface / finish: SRP Drilled & Slotted; Black electrocoat
• Ventilation: 32 vanes
• Mounting direction: Left-hand
• Preparation: Balanced: no; factory burnished: no
• Opposite-side component, ordered separately: 160-11521-BK
• Hat wheel-stud clearance pattern: 5 x 4.50/4.75/5.00 inches
• Stud clearance-hole sizes: 0.52 inches
• Center 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 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

For help identifying the correct replacement, share the installed brake package with PMB Performance. Our team draws on over 20 years of experience with brake components and fitment.