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Product details
Wilwood specifies this 0.450-inch-offset hat for Mini Cooper rear conversions. Match the four-hole hub flange and the eight-bolt rotor interface. Disc brake system design and manufacturing are Wilwood Engineering’s focus. Bill Wood founded the Camarillo, California company in 1977; its range spans brake rotors, master cylinders, calipers, fittings, valves and brake lines for motorsport, specialized and street-performance applications. The choice of individual components depends on the complete brake system.
Technical Details
- Manufacturer part number: 170-10868
- Rotor mounting hole/thread designation: 5/16-18
- Internal clearance diameter: 5.90 inches
- Mounting-face thickness: 0.25 inches
- Hub-side hole clearance diameter(s): 0.640 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: Rear
- Hat offset: 0.450 inch
- Rotor attachment interface: 8 x 7.00 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 4 x 3.93 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 2.53 inches
Fitment & Compatibility
Select this hat for the exact Mini Cooper brake conversions and installed hub arrangement. Compare the original part, rotor mounting circle and required hardware before replacing any component. 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 · Assembly instructions DS671
PMB Performance has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.
