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Product details
A 5 x 4.41-inch flange and 0.700-inch offset identify this Wilwood front hat. Verify the hub register and twelve-bolt rotor interface. Wilwood Engineering designs and builds disc brake systems in Camarillo, California. Bill Wood established the company in 1977; it supplies brake rotors, calipers, master cylinders, valves, fittings and lines for specialized applications, street performance and motorsport. The complete brake system determines which individual components are appropriate.
Technical Details
- Manufacturer part number: 170-12791
- 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: 0.700 inch
- Rotor attachment interface: 12 x 8.75 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 5 x 4.41 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 3.06 inches
- Rotor mounting hole/thread designation: 1/4-20
- Internal clearance diameter: 7.09 inches
- Mounting-face thickness: 0.25 inches
- Hub-side hole clearance diameter(s): 0.590 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-4572; verify the specific rotor and attachment arrangement before ordering hardware
- Manufacturer installation note: 3.06 " diameter register with counterbore for register ring.
Fitment & Compatibility
Match this component to the documented Matched five-hole brake conversions. Confirm the mounting stack, center location and rotor hardware; vehicle model alone does not establish compatibility with a modified brake system. Select the rotor and attachment hardware separately for the documented assembly. Follow the installation drawing for engagement and clearance at every mounting point.
Manufacturer Reference
Wilwood component specifications and dimensions
PMB Performance can help identify the required brake component with over 20 years of parts experience. Send the kit details and original-part measurements.
