| Teams for 2004 O'Reilly Auto Parts 300 |
|---|
| Car | Team | Driver | Mfg |
|---|---|---|---|
| 00 | Gene Haas | Jason Leffler |  |
| 1 | James Finch | Johnny Benson, Jr. |  |
| 2 | Richard Childress | Ron Hornaday, Jr. | |
| 02 | SCORE Motorsports | Hermie Sadler | |
| 4 | Biagi DenBeste Racing | Mike Wallace |  |
| 5 | Rick Hendrick | Kyle Busch | |
| 6 | Tommy Baldwin Jr. | Tracy Hines | |
| 8 | Chance 2 Motorsports | Martin Truex, Jr. | |
| 9 | Jack Roush | Jeff Burton | |
| 10 | Davis Motorsports | Jason Schuler | |
| 12 | FitzBradshaw Racing | Tim Fedewa | |
| 14 | FitzBradshaw Racing | Casey Atwood | |
| 17 | Jack Roush | Matt Kenseth | |
| 18 | Joe Gibbs | J.J. Yeley | |
| 20 | Joe Gibbs | Mike Bliss | |
| 21 | Richard Childress | Clint Bowyer | |
| 22 | Greg Pollex | Jason Keller | |
| 23 | Bill Davis | Kenny Wallace | |
| 25 | Ed Rensi | Bobby Hamilton, Jr. | |
| 27 | Brewco Motorsports | Johnny Sauter |  |
| 29 | Richard Childress | Bobby Labonte | |
| 31 | Ted Marsh | Dave Blaney | |
| 33 | Andy Petree | Paul Menard | |
| 37 | Brewco Motorsports | David Green | |
| 38 | Akins Motorsports | Kasey Kahne | |
| 44 | Terry Labonte | Justin Labonte | |
| 46 | Bill Lewis | Ashton Lewis | |
| 47 | ST Motorsports | Robert Pressley | |
| 50 | Michael Holligan | David Starr | |
| 55 | Robby Gordon | Robby Gordon | |
| 59 | ST Motorsports | Stacy Compton | |
| 60 | Jack Roush | Greg Biffle | |
| 66 | Rusty Wallace | Billy Parker | |
| 72 | MacDonald Motorsports | Lance Hooper | |
| 74 | BACE Motorsports | Tony Raines | |
| 82 | FitzBradshaw Racing | Randy LaJoie | |
| 87 | Joe Nemechek | Joe Nemechek | |
| 88 | Joe Nemechek | Jeff Fuller | |
| 91 | Stanton Barrett | Stanton Barrett | |
| 96 | Ortec Racing | Gus Wasson | |
| 99 | Michael Waltrip | Michael Waltrip | |
| 332 | Todd Braun | David Stremme | |
