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Product details
A 1.100-inch offset and 2.29-inch register identify this Wilwood Subaru front hat. Match its dual-pattern flange and eight-bolt rotor ring. Founded by Bill Wood in 1977, Wilwood Engineering designs and manufactures disc brake systems from Camarillo, California. Its calipers, brake rotors, master cylinders, valves, fittings and brake lines serve motorsport, street-performance and specialized applications. Individual components must be selected for the complete brake system.
Technical Details
- Manufacturer part number: 170-9206
- Rotor attachment interface: 8 x 7.00 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 5 x 3.93, 5 x 4.50 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 2.29 inches
- Rotor mounting hole/thread designation: 5/16-18
- Internal clearance diameter: 5.45 inches
- Mounting-face thickness: 0.27 inches
- Hub-side hole clearance diameter(s): 0.520 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-8390; verify the specific rotor and attachment arrangement before ordering hardware
- Component: Short-Offset Brake Rotor Hat
- Material: Aluminum
- Surface finish: Black E-Coat
- Rotor mounting method: Fixed Mount
- Position in the specified brake assembly: Front
- Hat offset: 1.100 inch
Fitment & Compatibility
For the specified Subaru front brake system, this hat has two hub-flange clearance layouts: five-on-3.93 and five-on-4.50 inches. It centers on a 2.29-inch register and places an eight-bolt rotor at 1.100-inch offset. Confirm the hub version, caliper bracket and matching friction ring. A shared vehicle name or one matching bolt circle is insufficient to establish the complete fit.
Manufacturer Reference
Wilwood component specifications and dimensions
PMB Performance brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.
