| Crew Chiefs 2021 United Rentals 176 |
|---|
| No. | Crew Chief | Driver | Mfg |
|---|---|---|---|
| 1 | Hailie Deegan |  | |
| 2 | Sheldon Creed |  | |
| 2 | Kaz Grala | | |
| 3 | Bobby Reuse | | |
| 4 | John H. Nemechek |  | |
| 6 | Norm Benning | | |
| 9 | Grant Enfinger | | |
| 10 | Jennifer Jo Cobb | | |
| 12 | Tate Fogleman | | |
| 13 | Johnny Sauter | | |
| 15 | Tanner Gray | | |
| 16 | Austin Hill | | |
| 17 | Taylor Gray | | |
| 18 | Chandler Smith | | |
| 19 | Derek Kraus | | |
| 20 | Spencer Boyd | | |
| 21 | Zane Smith | | |
| 22 | Austin Wayne Self | | |
| 23 | AJ Allmendinger | | |
| 24 | Jack Wood | | |
| 25 | Josh Berry | | |
| 26 | Tyler Ankrum | | |
| 30 | Danny Bohn | | |
| 32 | Sam Mayer | | |
| 33 | Josh Reaume | | |
| 34 | Lawless Alan | | |
| 38 | Todd Gilliland | | |
| 40 | Ryan Truex | | |
| 41 | Will Rodgers | | |
| 42 | Carson Hocevar | | |
| 45 | Chad Chastain | | |
| 49 | Roger Reuse | | |
| 51 | Corey Heim | | |
| 52 | Stewart Friesen | | |
| 56 | Timmy Hill | | |
| 66 | Paul Menard | | |
| 75 | Parker Kligerman | | |
| 88 | Matt Crafton | | |
| 98 | Christian Eckes | | |
| 99 | Ben Rhodes | |
