This brand-new truck brake disc comes with OEM part numbers 1387439, 1640561 and 1812563. It is a vital chassis brake component responsible for stable braking and driving safety. Adopting high-strength cast material and professional heat treatment, it features excellent heat dissipation, wear resistance and anti-distortion performance. Fully complying with OEM standards, it fits accurately, installs easily and perfectly replaces worn or cracked original brake discs.