Wilwood Front Nissan 350Z Hat with 2.69-Inch Hub Register

This Wilwood 350Z front hat uses a 2.69-inch register and 0.540-inch offset. Check the five-hole flange and specified twelve-bolt rotor attachment. 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: 170-9289
• Hub-flange mounting/clearance pattern(s): 5 x 4.50 inches; verify the actual hub and wheel-stud clearance
• Center register diameter: 2.69 inches
• Rotor mounting hole/thread designation: 1/4-20
• Internal clearance diameter: 7.75 inches
• Mounting-face thickness: 0.38 inches
• Hub-side hole clearance diameter(s): 0.520 inches; these are clearance dimensions, not wheel-stud thread sizes
• Manufacturer-listed attachment hardware reference: 230-4572; 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: 0.540 inch
• Rotor attachment interface: 12 x 8.75 inches; rotor attachment, separate from the hub flange

Fitment & Compatibility

This hat supports the specified 350Z front conversion through a 2.69-inch register and 0.540-inch offset. Compare the mounting face and flange clearance against the existing hub. Twelve rotor fasteners use an 8.75-inch circle; those holes attach the friction ring and do not define the vehicle wheel pattern. Use the caliper and rotor arrangement named by the complete Wilwood kit.

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.