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Product details
A 0.940-inch offset and 2.67-inch register define this Wilwood Eclipse front hat. Verify its five-hole flange and eight-bolt rotor attachment. Since its founding by Bill Wood in 1977, Wilwood Engineering has focused on disc brake system design and manufacturing. Based in Camarillo, California, it offers calipers, rotors, brake lines, master cylinders, fittings and valves for motorsport, street-performance and specialized installations. Choose components to satisfy the requirements of the entire braking system.
Technical Details
- Manufacturer part number: 170-8320
- 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: 2.67 inches
- Rotor mounting hole/thread designation: 5/16-18
- Internal clearance diameter: 5.90 inches
- Mounting-face thickness: 0.24 inches
- Hub-side hole clearance diameter(s): 0.480, 0.520 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-8390; verify the specific rotor and attachment arrangement before ordering hardware
- Component: Short-Offset Brake Rotor Hat
- Material: Aluminum
- Surface finish: Black E-Coat
- Rotor mounting method: Fixed Mount
- Position in the specified brake assembly: Front
- Hat offset: 0.940 inch
Fitment & Compatibility
For the specified Mitsubishi Eclipse front conversion, verify the 2.67-inch center and the 5 x 4.50-inch flange clearance pattern. An eight-bolt rotor ring attaches to the outer rim, independent of the hub-side holes. Check the 0.940-inch offset and 0.24-inch face against the existing mounting stack before selecting the replacement.
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.
