Rotor HD48 SPC37 LH 11.75 x 1.21 - 8 on 7.00

The Wilwood Rotor HD48 SPC37 LH 11.75 x 1.21 - 8 on 7.00 is a high-performance left-hand brake rotor designed for automotive enthusiasts and track-focused builds. This disc rotor is engineered to deliver the thermal capacity and consistent stopping power required by modified vehicles, street machines, and performance applications.

With an 11.75-inch diameter and 1.21-inch thickness, this rotor provides effective heat dissipation and fade resistance compared to OEM components, making it suitable for sustained high-performance driving. The HD48 series designation indicates a premium casting design optimized for thermal conductivity and structural rigidity under extreme stopping loads.

This rotor is ideal for custom brake builds, street rod restorations, drag racing platforms, and high-horsepower street vehicles that require reliable stopping capacity. Its 8-bolt pattern on a 7.00-inch bolt circle diameter ensures compatibility with Wilwood's brake system ecosystem, making it a valuable upgrade for serious performance applications.