| Teams 2005 O'Reilly Auto Parts 300 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | JD Motorsports | Kertus Davis | Chevrolet |
| 1 | Phoenix Racing | Johnny Sauter | Dodge |
| 2 | Richard Childress Racing | Clint Bowyer | Chevrolet |
| 4 | Biagi DenBeste Racing | Ryan Hemphill | Dodge |
| 5 | Hendrick Motorsports | Blake Feese | Chevrolet |
| 6 | Evernham Motorsports | Jeremy Mayfield | Dodge |
| 8 | Chance 2 Motorsports | Martin Truex, Jr. | Chevrolet |
| 9 | Roush Racing | Mark Martin | Ford |
| 10 | ppc Racing | Michael Jourdain, Jr | Ford |
| 11 | Dale Earnhardt Inc. | Paul Menard | Chevrolet |
| 12 | FitzBradshaw Racing | Tim Fedewa | Dodge |
| 14 | FitzBradshaw Racing | David Stremme | Dodge |
| 16 | Day Enterprise Racing | David Ragan | Chevrolet |
| 17 | Roush Racing | Matt Kenseth | Ford |
| 18 | Joe Gibbs Racing | J.J. Yeley | Chevrolet |
| 20 | Joe Gibbs Racing | Denny Hamlin | Chevrolet |
| 21 | Richard Childress Racing | Brandon Miller | Chevrolet |
| 22 | ppc Racing | Kenny Wallace | Ford |
| 25 | Team Rensi Motorsports | Ashton Lewis | Ford |
| 27 | Brewco Motorsports | David Green | Ford |
| 28 | Jay Robinson Racing | Derrike Cope | Ford |
| 32 | Braun Motorsports | Shane Hmiel | Chevrolet |
| 33 | Kevin Harvick Incorporated | Tony Stewart | Chevrolet |
| 34 | Frank Cicci Racing | Randy LaJoie | Chevrolet |
| 35 | Team Rensi Motorsports | Jason Keller | Ford |
| 36 | McGill Motorsports | Stanton Barrett | Chevrolet |
| 38 | Akins Motorsports | Kasey Kahne | Dodge |
| 40 | FitzBradshaw Racing | Sterling Marlin | Dodge |
| 41 | Chip Ganassi Racing | Reed Sorenson | Dodge |
| 44 | Haas CNC Racing | Justin Labonte | Chevrolet |
| 47 | Frank Schwantz | Jon Wood | Ford |
| 49 | Jay Robinson Racing | Steve Grissom | Ford |
| 52 | Jimmy Means Racing | Eric McClure | Ford |
| 58 | Stringer Motorsports | Brent Sherman | Dodge |
| 59 | Frank Schwantz | Stacy Compton | Ford |
| 60 | Roush Racing | Carl Edwards | Ford |
| 64 | Rusty Wallace Racing | Jamie McMurray | Dodge |
| 66 | Brewco Motorsports | Greg Biffle | Ford |
| 72 | MacDonald Motorsports | Geoffrey Bodine | Chevrolet |
| 87 | NEMCO Motorsports | Joe Nemechek | Chevrolet |
| 90 | Yates Racing | Elliott Sadler | Ford |
| 99 | Michael Waltrip Racing | Michael Waltrip | Chevrolet |
| 127 | Furniture Row Racing | Jerry Robertson | Chevrolet |