Wilwood 300-11532-2 Aluminum Rotor/ Hat Register Adapters

Wilwood's 300-11532-2 is an aluminum rotor and hat register adapter used to properly locate one-piece iron rotors and aluminum hat assemblies to vehicle-specific hub or axle registers. It is designed for assemblies that require a 3.060-inch center hole with counterbore for installation, and this adapter has a 3.060-inch outside diameter and 2.175-inch inside diameter.

This is a small but important fitment designed to helps center the brake assembly correctly and supports a more precise, vibration-free installation. It is especially useful in custom brake setups where accurate rotor-to-hub alignment is critical for smooth operation, proper runout control, and reliable performance. 2-pack configuration with plain-finish aluminum construction.

• Locates one-piece rotors and aluminum hats to hub or axle registers
• Aluminum construction helps keep weight low
• 3.060-inch outside diameter and 2.175-inch inside diameter
• Designed for assemblies requiring a 3.060-inch center hole with counterbore
• Sold in a 2-pack for compatible rotor and hat installations