R1 Concepts slotted black brake rotor is listed as the rear-left disc for 2017–2021 Tesla Model 3 applications. The source identifies the slotted rotor styling, black finish and rear-left axle position with the year range so buyers can validate fitment. Confirm the Model 3 years and rear-left designation from the listing before ordering this replacement rotor.
R1 17-21 Tesla Model 3 Rear Left Slotted Black Brake Rotor