Wilwood Rear 3.12-inch Register HP Rotor, 11.00 x 0.81-inch, 1.91-inch Offset

The 3.12-inch center opening separates this rear rotor from the 3.06-inch-register low-profile versions. Its plain friction face, 11.00-inch diameter and 1.91-inch offset suit the matching disc/drum assembly only after axle centering is confirmed. Wilwood Engineering's disc brake systems are designed and manufactured for motorsport, street-performance and specialized applications. Founded in 1977 by Bill Wood and based in Camarillo, California, the company makes calipers, brake rotors, master cylinders, valves, fittings and brake lines. These individual parts must be chosen to work within the complete braking system.

Technical Details

• Manufacturer part number: 160-11520
• Friction dimensions: 11.00 inches diameter x 0.81 inches wide
• Construction: Iron
• Surface treatment: Plain Face; Plain
• Cooling layout: 32 vanes; straight
• Mounting direction: Non-directional
• Supplied preparation: Balanced: no; factory burnished: no
• 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: 11.80 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

PMB Performance brings over 20 years of brake and parts experience to component selection. Send the existing rotor identification and brake-kit details if you need help confirming the match.