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The R1 Concepts slotted black brake rotor for the left-rear position on Mazda 3 (2017–2021) is a direct replacement sold individually. It provides the slotted braking surface specified for that wheel position and a black finish for a like-for-like replacement. Use when servicing the left rear rotor; confirm fitment for your exact model and trim before installation.
R1 17-21 Mazda 3 Rear Left Slotted Black Brake Rotor
