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Product details
A 1.960-inch offset locates this Wilwood rear drag hat. The hub flange is blank; verify machining, 3.06-inch register and eight-bolt rotor fit. From Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and their components. Founded by Bill Wood in 1977, it serves street-performance, motorsport and specialized applications with master cylinders, calipers, brake rotors, valves, fittings and brake lines. All components must suit the requirements of the complete system.
Technical Details
- Manufacturer part number: 171-3753
- Internal clearance diameter: 6.14 inches
- Mounting-face thickness: 0.25 inches
- Manufacturer-listed attachment hardware reference: 230-0233D; verify the specific rotor and attachment arrangement before ordering hardware
- Rotor-bolt clearance: The listed 230-0233D kit uses short-profile hex-head bolts for the solid-rotor drag assembly. Use 230-2589 only where the installation provides sufficient clearance between the rotor-bolt heads and caliper mounting hardware.
- Manufacturer installation note: 3.06 " diameter register with counterbore for register ring.
- Component: Drag Brake Rotor Hat
- Material: Aluminum
- Surface finish: Black E-Coat
- Rotor mounting method: Fixed Mount
- Position in the specified brake assembly: Rear
- Hat offset: 1.960 inch
- Rotor attachment interface: 8 x 7.00 inches; rotor attachment, separate from the hub flange
- Hub-flange mounting/clearance pattern(s): Blank — flange requires machining
- Center register diameter: 3.06 inches
- Rotor mounting hole/thread designation: 5/16-18
Fitment & Compatibility
Use this replacement only within the specified custom drag brake systems. Compare the hub, caliper position and rotor attachment to the complete assembly drawing. The blank hub flange is not ready to bolt on. Have a qualified machinist verify the drilling layout, register and finished mounting surfaces for the intended assembly.
Manufacturer Reference
Wilwood component specifications and dimensions · Wilwood 230-0233D / 230-2589 hardware-clearance reference
Contact PMB Performance with the brake-kit identification and measurements for help selecting the part. Our team brings over 20 years of experience.
