NASCAR Seri Piala musim 2021
Skuat tim dan pembalap > Tim charter

| Pabrikan | Tim | No>  | Pembalap | Kepala kru |
| --- | --- | --- | --- | --- |
| Chevrolet | Chip Ganassi Racing | 1 | Kurt Busch | Matt McCall |
| Chevrolet | Chip Ganassi Racing | 42 | Ross Chastain | Phil Surgen |
| Chevrolet | Hendrick Motorsports | 5 | Kyle Larson | Cliff Daniels |
| Chevrolet | Hendrick Motorsports | 9 | Chase Elliott | Alan Gustafson |
| Chevrolet | Hendrick Motorsports | 24 | William Byron | Rudy Fugle |
| Chevrolet | Hendrick Motorsports | 48 | Alex Bowman | Greg Ives |
| Chevrolet | JTG Daugherty Racing | 47 | Ricky Stenhouse Jr. | Brian Pattie |
| Chevrolet | Petty Ware Racing | 51 | Cody Ware | Mike Hillman Sr. |
| Chevrolet | Richard Childress Racing | 3 | Austin Dillon | Justin Alexander |
| Chevrolet | Richard Childress Racing | 8 | Tyler Reddick | Randall Burnett |
| Chevrolet | Richard Petty Motorsports | 43 | Erik Jones | Jerry Baxter |
| Chevrolet | Spire Motorsports | 7 | Corey LaJoie | Ryan Sparks 35   Steve Letarte 1 |
| Chevrolet | Spire Motorsports | 77 | Jamie McMurray 1 | Kevin Bellicourt |
| Chevrolet | Spire Motorsports | 77 | Justin Haley 4 | Kevin Bellicourt |
| Chevrolet | Spire Motorsports | 77 | TBA 31 | Kevin Bellicourt |
| Chevrolet | StarCom Racing | 00 | Quin Houff | George Church |
| Chevrolet | Trackhouse Racing Team | 99 | Daniel Suárez | Travis Mack |
| Ford | Front Row Motorsports | 34 | Michael McDowell | Drew Blickensderfer |
| Ford | Front Row Motorsports | 38 | Anthony Alfredo (R) | Seth Barbour |
| Ford | Live Fast Motorsports | 78 | B. J. McLeod 35 | Frank Kerr |
| Ford | Live Fast Motorsports | 78 | Scott Heckert 1 | Frank Kerr |
| Ford | Roush Fenway Racing | 6 | Ryan Newman | Scott Graves |
| Ford | Roush Fenway Racing | 17 | Chris Buescher | Luke Lambert |
| Ford | Stewart-Haas Racing | 4 | Kevin Harvick | Rodney Childers |
| Ford | Stewart-Haas Racing | 10 | Aric Almirola | Mike Bugarewicz |
| Ford | Stewart-Haas Racing | 14 | Chase Briscoe (R) | Johnny Klausmeier |
| Ford | Stewart-Haas Racing | 41 | Cole Custer | Mike Shiplett |
| Ford | Team Penske | 2 | Brad Keselowski | Jeremy Bullins |
| Ford | Team Penske | 12 | Ryan Blaney | Todd Gordon |
| Ford | Team Penske | 22 | Joey Logano | Paul Wolfe |
| Ford | Wood Brothers Racing | 21 | Matt DiBenedetto | Greg Erwin |
| Toyota | 23XI Racing | 23 | Bubba Wallace | Mike Wheeler |
| Toyota | Joe Gibbs Racing | 11 | Denny Hamlin | Chris Gabehart |
| Toyota | Joe Gibbs Racing | 18 | Kyle Busch | Ben Beshore |
| Toyota | Joe Gibbs Racing | 19 | Martin Truex Jr. | James Small |
| Toyota | Joe Gibbs Racing | 20 | Christopher Bell | Adam Stevens |
| Chevrolet 4   Ford TBA | Rick Ware Racing | 15 | Derrike Cope 1 | Pat Tryson |
| Chevrolet 4   Ford TBA | Rick Ware Racing | 15 | James Davison 2 | Pat Tryson |
| Chevrolet 4   Ford TBA | Rick Ware Racing | 15 | Chris Windom 1 | Pat Tryson |
| Chevrolet 4   Ford TBA | Rick Ware Racing | 15 | Joey Gase TBA | Pat Tryson |
| Chevrolet 4   Ford TBA | Rick Ware Racing | 15 | J. J. Yeley TBA | Pat Tryson |
| Chevrolet 4   Ford TBA | Rick Ware Racing | 15 | Garrett Smithley TBA | Pat Tryson |
| Chevrolet 4   Ford TBA | Rick Ware Racing | 15 | TBA TBA | Pat Tryson |
| Ford 3   Chevrolet TBA | Rick Ware Racing | 52 | Josh Bilicki | Peter Sospenzo |
| Ford 2   Chevrolet 1 | Rick Ware Racing | 53 | Joey Gase 1 | Billy Plourde |
| Ford 2   Chevrolet 1 | Rick Ware Racing | 53 | Garrett Smithley 2 | Billy Plourde |
| Ford 2   Chevrolet 1 | Rick Ware Racing | 53 | James Davison TBA | Billy Plourde |
| Ford 2   Chevrolet 1 | Rick Ware Racing | 53 | J. J. Yeley TBA | Billy Plourde |
| Ford 2   Chevrolet 1 | Rick Ware Racing | 53 | TBA TBA | Billy Plourde |