O'Reilly Auto Parts will become the title sponsor for NASCAR's second-tier national series when the Xfinity Series is renamed.

O'Reilly Auto Parts is replacing Xfinity as the title sponsor of NASCAR's secondary series starting in 2026. NASCAR announced a multiyear partnership on Monday that will become effective on Jan. 1. "Like the great sport of NASCAR,

Xfinity has held the naming rights to NASCAR's No. 2 division since 2015, but next year, it will be known officially as the NASCAR O’Reilly Auto Parts Series. The company will be the fourth brand to hold the naming rights to the popular series,