Wilwood Brake Hat Pilot Ring Set, 2.438-Inch Internal Diameter

A 2.438-inch inside diameter defines this Wilwood rotor-and-hat register ring set. The pair provides the locating interface between a matching hub or axle pilot and a 3.060-inch counterbored brake component. Founded in 1977 by Bill Wood, Wilwood Engineering designs and manufactures disc-brake systems from Camarillo, California. Its range of calipers, rotors, master cylinders, valves, fittings and brake lines serves motorsport, street-performance and specialized applications. Individual parts must be matched to the requirements of the complete system.

Technical Details

• Manufacturer part number: 300-12761-2
• Material: Aluminum
• Finish: Plain
• Package: 2 register rings
• Weight: 0.100 lb
• Internal diameter: 2.438 in
• Outside diameter: 3.060 in

Fitment & Compatibility

Select by the measured register and the ring identified in the brake-kit instructions. Verify that the 2.438-inch bore and counterbore depth allow the hat or rotor to seat squarely.

Manufacturer Documents

• Wilwood hardware specifications

The photograph represents the product family. Match the ordered configuration using the part number and specifications above.

Have a question about the hardware already on your vehicle? PMB Performance can help compare the part and mounting requirements, backed by over 20 years of brake and fitment experience.