The R1 Concepts drilled-and-slotted brake rotor for 1978–1981 BMW 733i (rear left) is a black rotor listed for that rear corner and year range. The product description specifies the drilled and slotted face and the exact application. Fit this rotor as the rear left replacement on 1978–1981 BMW 733i vehicles, verifying vehicle year and side to ensure proper compatibility.
R1 78-81 BMW 733I Rear Left Drilled & Slotted Black Brake Rotor