Is your Hyundai or Kia making a humming, grinding, or clunking noise from the rear? Or maybe the ABS light is on? Could be a bad wheel bearing. This Autoround hub assembly (part #512553) is a direct replacement for the rear wheels on several models: the 2015-2019 Hyundai Sonata, 2016-2021 Tucson (FWD), 2020-2022 Veloster N, and for Kia, the 2016-2020 Optima, 2017-2021 Sportage (FWD), and 2017-2020 Cadenza. It's a complete hub and bearing unit with 5 lug bolts and an ABS encoder, so it's made for vehicles with ABS. The specs are solid: 143mm flange diameter, 80.9mm hub pilot, 114.7mm bolt circle. Autoround tests these to meet or exceed OEM standards, so you're getting a quality part. Installation is straightforward if you're familiar with brake work – you'll need to remove the wheel, brake caliper and rotor, then the old hub. The new one bolts in. They offer a 1-year service guarantee. Just make absolutely sure your car's make, model, year, and drivetrain (FWD) match before ordering. It's a reliable fix to get your ride quiet and safe again.