Wilwood HPS Slotted Rotor and Hat, Plain-Finish 12.19 x 1.10-inch, 1.52-inch Offset

GT slots distinguish this plain-finish HPS rotor from the smooth HP casting. Its non-directional 32-vane ring is integrated with a 1.52-inch-offset hat, using five-on-4.75-inch and five-on-5.00-inch clearance patterns. Camarillo, California is home to Wilwood Engineering, founded in 1977 by Bill Wood. The company designs and manufactures disc brake systems and their calipers, brake rotors, master cylinders, valves, fittings and brake lines. Across motorsport, street-performance and specialized applications, these components must be matched as parts of a complete braking system.

Technical Details

• Manufacturer part number: 160-15515
• Friction dimensions: 12.19 inches diameter x 1.10 inches wide
• Construction: Iron
• Surface treatment: GT Slotted; Plain
• Cooling layout: 32 vanes; straight
• Mounting direction: Non-directional
• Supplied preparation: Balanced: yes; factory burnished: no
• Hat wheel-stud clearance pattern: 5 x 4.75/5.00 inches
• Stud clearance-hole sizes: 0.52 inches
• Center registration: 3.06 inches
• Far-side inside diameter: 8.34 inches
• Hat offset: 1.520 inches
• Inside clearance diameter: 7.11 inches
• Hat mounting-face thickness: 0.25 inches
• Approximate weight: 18.79 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 brake assembly specified for a 12.19 x 1.10-inch rotor, 1.52-inch hat and 3.06-inch center. The five-on-4.75- and five-on-5.00-inch holes clear the matching hub studs. Confirm the complete kit and caliper geometry; this component does not change the hub's wheel pattern.

Manufacturer reference: Wilwood rotor specifications

Choosing a rotor involves more than its outside diameter. PMB Performance's 20-plus years of brake and parts experience can help you check the component against your existing assembly.