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Product details
This Wilwood front drag hat has 0.810-inch offset and a 3.76-inch register. Compare the 5 x 5.50-inch flange and eight-bolt rotor dimensions. The manufacturer, Wilwood Engineering, was established by Bill Wood in 1977 and is based in Camarillo, California. It designs and builds disc brake systems with a range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines. Motorsport, street-performance and specialized applications require components selected for the complete braking system.
Technical Details
- Manufacturer part number: 170-12612
- Manufacturer-listed attachment hardware reference: 230-12120; verify the specific rotor and attachment arrangement before ordering hardware
- 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: 0.810 inch
- Rotor attachment interface: 8 x 7.00 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 5 x 5.50 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 3.76 inches
- Rotor mounting hole/thread designation: 5/16-18
- Internal clearance diameter: 6.16 inches
- Mounting-face thickness: 0.38 inches
- Hub-side hole clearance diameter(s): 0.670 inches; these are clearance dimensions, not wheel-stud thread sizes
Fitment & Compatibility
Select this hat for the exact Matched drag 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
Contact PMB Performance with the brake-kit identification and measurements for help selecting the part. Our team brings over 20 years of experience.
