Rear Driver Side & Passenger Side Lower Outer Upper Control Arm Lock Nut is a direct fit for the following:

2013-2020 Cadenza
2019-2020 K900
2017-2023 Niro
2019-2023 Niro EV
2011-2015 Optima
2016-2018 Optima Hybrid
2018-2021 Stinger

Genuine Kia Part Number: 517683M000