The R1 Concepts drilled black rear-left brake rotor for 2010–2022 Toyota 4Runner is a vehicle-specific replacement rotor with a drilled face to promote ventilation and water clearance on the braking surface. Intended for the rear-left position on those 4Runner model years, it restores the rear rotor surface and should be used alongside the matching rear-right rotor to preserve balanced braking on the rear axle.
R1 10-22 Toyota 4Runner Rear Left Drilled Black Brake Rotor