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Product details
Specified Honda Civic/Fit and Acura front kits use this Wilwood four-hole hat. Check the 0.450-inch offset and eight-bolt rotor connection. Bill Wood’s 1977 founding of Wilwood Engineering began a disc brake design and manufacturing business based in Camarillo, California. The range includes master cylinders, calipers, rotors, brake lines, valves and fittings for motorsport, street-performance and specialized vehicles. Component selection must consider the complete braking arrangement.
Technical Details
- Manufacturer part number: 170-6288
- Internal clearance diameter: 5.90 inches
- Mounting-face thickness: 0.25 inches
- Hub-side hole clearance diameter(s): 0.500 inches; these are clearance dimensions, not wheel-stud thread sizes
- Manufacturer-listed attachment hardware reference: 230-8390; 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: 0.450 inch
- Rotor attachment interface: 8 x 7.00 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): 4 x 3.93 inches; verify the actual hub and wheel-stud clearance
- Center register diameter: 2.53 inches
- Rotor mounting hole/thread designation: 5/16-18
Fitment & Compatibility
This hat appears in Wilwood front kit 140-6163. DS375 identifies selected four-lug Acura/Civic applications for 1990–2005, four-lug Civic Si for 2000–2003, and Honda Fit with the specified factory 262 mm disc spindle. These are complete conversion-kit applications. Confirm the exact vehicle, spindle, hub register and mounting hardware with the current kit application before selecting this replacement hat. 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 · Assembly instructions DS375
With more than 20 years of parts and fitment experience, PMB Performance can help compare the existing brake assembly with the required component.
