R1 Concepts slotted black brake rotor is listed as the rear-left disc for 2017–2021 Tesla Model 3 applications. The description includes slotted styling, black finish, and the rear-left axle position with the year range so shoppers can verify fit. Double-check the 2017–2021 Model 3 compatibility and rear-left designation in the listing prior to purchasing this rotor.
R1 17-21 Tesla Model 3 Rear Left Slotted Black Brake Rotor