The R1 Concepts drilled black rear-left brake rotor for 2011–2019 Buick Cascada is presented as a direct replacement for the rear left position. With a drilled surface and black finish matching the listing, it serves as a like-for-like rotor option when replacing rear rotors during brake service on the specified Cascada model years using standard reassembly procedures.

R1 11-19 Buick Cascada Rear Left Drilled Black Brake Rotor