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Product details
Wilwood's rear Pro-Street hat combines 2.000-inch offset with a multi-pattern flange. Select the correct 8 x 7.62-inch rotor and mounting hardware. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and builds disc brake systems for motorsport, street-performance and specialized uses, including calipers, rotors, master cylinders, valves, fittings and brake lines. Each part must match the requirements of the whole braking arrangement.
Technical Details
- Manufacturer part number: 170-1827
- Hub-side hole clearance diameter(s): 0.520 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-0150; verify the specific rotor and attachment arrangement before ordering hardware
- Manufacturer installation note: 3.06 " diameter register with counterbore for register ring.
- Component: Pro-Street Brake Rotor Hat
- Material: Aluminum
- Surface finish: Black E-Coat
- Rotor mounting method: Fixed Mount
- Position in the specified brake assembly: Rear
- Hat offset: 2.000 inch
- Rotor attachment interface: 8 x 7.62 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 5 X 4.50, 5 X 4.75, 5 X 5.00 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 3.06 inches
- Rotor mounting hole/thread designation: .323
- Internal clearance diameter: 6.50 inches
- Mounting-face thickness: 0.25 inches
Fitment & Compatibility
The specified Pro-Street brake systems must use the same hat geometry and rotor interface. Verify the hub register and offset measurement reference before assembling the 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
For fitment assistance backed by more than 20 years of experience, share the installed brake configuration with PMB Performance before ordering.
