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Product details
A 0.45-inch mounting face and 1.680-inch offset set this Wilwood front drag hat apart. Verify the hub stack and eight-bolt rotor fasteners. 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: 170-12575
- Rotor mounting hole/thread designation: 5/16-18
- Internal clearance diameter: 6.14 inches
- Mounting-face thickness: 0.45 inches
- Hub-side hole clearance diameter(s): 0.630 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-0233D; verify the specific rotor and attachment arrangement before ordering hardware
- Manufacturer installation note: 3.06 " diameter register with counterbore for register ring.
- Component: Drag Brake Rotor Hat
- Material: Aluminum
- Surface finish: Black E-Coat
- Rotor mounting method: Fixed Mount
- Position in the specified brake assembly: Front
- Hat offset: 1.680 inch
- Rotor attachment interface: 8 x 7.00 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 5 X 4.50 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 3.06 inches
Fitment & Compatibility
For a front drag conversion that specifies this hat, check the 0.45-inch mounting face as part of the complete hub stack. The 1.680-inch offset positions the friction ring relative to that face. Eight threaded rotor connections on a 7.00-inch circle and a 3.06-inch center register must agree with the installed components. The hat is not a replacement for a complete hub or caliper package.
Manufacturer Reference
Wilwood component specifications and dimensions
With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.
