The SHW cross-drilled lightweight brake rotor for 2020 BMW X5 M 4.4L (left rear) is a vehicle-specific replacement identified for that engine and wheel-side. It comes as the left-rear drilled rotor with the catalog reference provided for part verification and is intended as a like-for-like service unit for the listed X5 M configuration.
SHW 2020 BMW X5 M 4.4L Left Rear Cross-Drilled Lightweight Brake Rotor (34208074285)