The R1 Concepts slotted black rear-left brake rotor for 2008–2021 Ford E-350 Super Duty is a vehicle-specific replacement disc with a slotted braking surface and black finish. It is specified for the rear-left position on 2008–2021 E-350 Super Duty models and aligns with the positional fitment identified in the product description.
R1 08-21 Ford E-350 Super Duty Rear Left Slotted Black Brake Rotor