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Product details
This Wilwood drag hat uses an eight-lug rotor connection at 1.960-inch offset. Check the multi-pattern flange and dedicated retention kit. 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: 170-12429
- Center register diameter: 3.06 inches
- Internal clearance diameter: 6.20 inches
- Mounting-face thickness: 0.25 inches
- Hub-side hole clearance diameter(s): 0.520 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 4.50, 5 X 4.75, 5 X 5.00 inches; verify the actual hub and wheel-stud clearance
Fitment & Compatibility
Check the existing Dynamic drag brake systems against the dimensions above. The hub flange and rotor attachment are separate interfaces and both must match the intended brake package. 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 has over 20 years of brake-parts experience. Send the installed component details if you need help checking this replacement.
