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

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.