Wilwood Dual-Pattern Lug-Drive Hat, 5 x 4.75/5.00-Inch Flange

Wilwood's dual-pattern drag hat combines 1.960-inch offset with eight drive lugs. Verify the 5 x 4.75/5.00-inch flange arrangement. Wilwood Engineering has designed and manufactured disc brake systems since Bill Wood founded it in 1977. Its Camarillo, California operation supplies calipers, master cylinders, brake rotors, valves, fittings and lines for specialized, street-performance and motorsport applications. Each component must be chosen to match the complete brake system.

Technical Details

• Manufacturer part number: 170-12431
• Mounting-face thickness: 0.25 inches
• Hub-side hole clearance diameter(s): 0.700 inches; these are clearance dimensions, not wheel-stud thread sizes
• Manufacturer-listed attachment hardware reference: 300-12561; verify the specific rotor and attachment arrangement before ordering hardware
• Manufacturer installation note: 300-12561 Dynamic Lug Mount Clip & Snap Ring kit are required for rotor mounting.
• Component: Lug-Drive Drag Rotor Hat
• Material: Aluminum
• Surface finish: Type III Anodize
• Rotor mounting method: Dynamic Lug Mount
• Hat offset: 1.960 inch
• Rotor attachment interface: 8Lug-7.18 inches; drive-lug connection, not a wheel bolt pattern
• Hub-flange mounting/clearance pattern(s): 5 x 5.00, 5 x 4.75 inches; verify the actual hub and wheel-stud clearance
• Center register diameter: 3.06 inches
• Internal clearance diameter: 6.20 inches

Fitment & Compatibility

Use this replacement only within the specified Dynamic drag brake systems. Compare the hub, caliper position and rotor attachment to the complete assembly drawing. Use the specified lug-drive friction ring and clip/snap-ring retention system. A conventional bolt-on ring is a different attachment arrangement.

Manufacturer Reference

Wilwood component specifications and dimensions

PMB Performance brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.