O'Reilly Auto Parts Series Will Update Cars By 2028
New generation vehicles may shift from five-lug wheels to a modern single-lug system.
Updated on Oct. 2, 2026 in Auto Parts
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Will the O'Reilly Series adopt a single-lug wheel system by the end of 2028?
NASCAR is reportedly planning a new generation of O'Reilly Auto Parts Series cars to debut by 2028. This potential update would modernize the series' aging platform, aligning its technology with the Cup Series Next Gen car introduced in 2022.
Why it matters
Updating the vehicle architecture allows the series to refresh its chassis, aerodynamics, and wheel components, which have remained stagnant compared to other major racing categories. This evolution reflects a broader trend of aligning performance technology across various racing tiers.
The current O'Reilly Series vehicle utilizes a traditional five-lug wheel system, whereas a potential update may transition to a single center-locking lug fastener similar to modern Cup Series machinery. A new generation of vehicle is estimated for introduction by 2028.
The players
NASCAR
The sanctioning body responsible for regulating vehicle specifications, safety standards, and competition rules across American stock car racing series.
The details
The current O'Reilly Series car remains largely unchanged while top-tier series have transitioned to more advanced systems like the single center-locking lug. This new fastener secures wheels using one large nut rather than five, a design change meant to improve pit road safety and efficiency. NASCAR executives have also explored new CUV concepts to potentially update the chassis and aerodynamics of future competition vehicles.
Timeline
2022 saw the debut of the Cup Series Next Gen car.
2026 rules added new procedures for addressing loose or missing lug nuts.
2028 is the projected timeframe for the introduction of new O'Reilly Series cars.
The Home Front
The transition to a single-lug system represents a major shift toward standardized racing parts across professional series. This update aligns with broader efforts to simplify maintenance and improve safety protocols in high-performance automotive circles.
Fans and hobbyists interested in automotive engineering should monitor future rulebooks for technical updates to wheel and chassis configurations. If you follow series developments, keep an eye on official announcements regarding the 2028 shift to understand how these changes influence stock car design.
The takeaway
The projected 2028 update highlights a significant shift toward modernizing race vehicle components like wheel locking systems. Keep these technical changes in mind when evaluating the evolution of automotive performance standards.
Further reading
For more information on automotive equipment trends, visit Auto Parts.
Source note: This article includes information reported by Sportsnaut.
Live Poll
Will the O'Reilly Series adopt a single-lug wheel system by the end of 2028?
