Fitment questions?
Call (855) 786-7101 or text (801) 304-3141.
Real people. Real answers.
Product details
A 0.28-inch face and 5 x 4.53-inch flange accompany this Wilwood front hat's 0.700-inch offset. Match the specified twelve-bolt rotor. 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: 170-12908
- Rotor mounting method: Fixed Mount
- Position in the specified brake assembly: Front
- Hat offset: 0.700 inch
- Rotor attachment interface: 12 x 8.75 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 5 x 4.53 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 3.06 inches
- Rotor mounting hole/thread designation: 1/4-20
- Internal clearance diameter: 7.26 inches
- Mounting-face thickness: 0.28 inches
- Hub-side hole clearance diameter(s): 0.500 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-8008; verify the specific rotor and attachment arrangement before ordering hardware
- Manufacturer installation note: 3.06 " diameter register with counterbore for register ring.
- Component: Flared-Bell Brake Rotor Hat
- Material: Aluminum
- Surface finish: Black E-Coat
Fitment & Compatibility
Select this hat for the exact Matched big-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.
