The R1 Concepts drilled black brake rotor for the rear right of 2008–2021 Ford E-150 is listed as the rear-right replacement rotor for the given years. The product description notes a drilled rotor face and black finish for the rear-right position. Confirm the right/rear side and year span to ensure this rotor matches the E-150 application.
R1 08-21 Ford E-150 Rear Right Drilled Black Brake Rotor