This Cadillac ATS Rear Brake Rotor is a genuine OEM part with the part number 533 and fits model years 2013-2018. With only 40,000 miles, this used brake rotor is still in great condition and is a performance part that will enhance your vehicle's braking capabilities. This part is designed for the rear placement on your Cadillac ATS and is interchangeable with part number 533-02506. Purchase with confidence knowing you are getting a quality part for your vehicle.