O’Reilly Auto Parts will become the title sponsor for NASCAR’s second-tier national series next season, as the Xfinity Series is set to be renamed starting January 1.

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,

O'Reilly Auto Parts has announced a multi-year partnership to become the title sponsor of the NASCAR O'Reilly Auto Parts Series, which will debut on January 1, 2026 and be broadcast exclusively on The CW Network.