Multi Purpose Nut is a direct fit for the following:

2020-2021 Cadillac CT4
2019-2020 Chevrolet Silverado 1500
2019 Chevrolet Silverado 1500 LD
2019-2020 GMC Sierra 1500
2020 GMC Sierra 2500 HD
2020 GMC Sierra 3500 HD

Genuine GM Part Number: 11548298