Wilwood Front Bobbin-Interface Rotor Hat, 1.620-Inch Offset

SKU: 170-14327

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Product details

A 1.620-inch offset locates this Wilwood dynamic front hat. Its dual-pattern flange and bobbin interface require the matching rotor hardware. Founded in 1977 under Bill Wood, Wilwood Engineering operates from Camarillo, California. The company designs and manufactures disc braking systems and components, including calipers, master cylinders, brake rotors, fittings, valves and brake lines. Its motorsport, specialized and street-performance range requires individual parts matched to the complete braking arrangement.

Technical Details

  • Manufacturer part number: 170-14327
  • Manufacturer installation note: 3.06 " diameter register with counterbore for register ring.
  • Component: Dynamic Brake Rotor Hat
  • Material: Aluminum
  • Surface finish: Type III Anodize
  • Rotor mounting method: Dynamic Mount
  • Position in the specified brake assembly: Front
  • Hat offset: 1.620 inch
  • Rotor attachment interface: 12 x 8.75 inches; rotor attachment, separate from the hub flange
  • Hub-flange mounting/clearance pattern(s): 5 x 4.50, 5 x 4.75 inches; verify the actual hub and wheel-stud clearance
  • Center register diameter: 3.06 inches
  • Rotor mounting hole/thread designation: T-Nut
  • Internal clearance diameter: 6.79 inches
  • Mounting-face thickness: 0.25 inches
  • Hub-side hole clearance diameter(s): 0.520 inches; these are clearance dimensions, not wheel-stud thread sizes
  • Manufacturer-listed attachment hardware reference: 230-6656; verify the specific rotor and attachment arrangement before ordering hardware

Fitment & Compatibility

Identify the installed brake conversion before choosing this hat for Matched dynamic brake systems. The offset, center register and attachment hardware must agree with the rotor and hub in that assembly. Use the correct dynamic mounting hardware and rotor connection; an ordinary fixed-mount bolt set does not establish the specified floating assembly.

Manufacturer Reference

Wilwood component specifications and dimensions

Ask PMB Performance for help comparing the installation requirements. We have more than 20 years of experience working with brake parts and fitment.