Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2004 |  | Alejandro Acosta | DF |  | Progreso | Progreso |
| 07/2004 |  | Cristián Gálvez | MF |  | Colo-Colo | Colo-Colo |
| 07/2004 | | Rodrigo Viligrón | MF | | Colo-Colo | Colo-Colo |
| 07/2004 | | Luis Díaz | FW |  | Rangers | Rangers |
| 07/2004 | | Gustavo Huerta | MA | |||
| 01/2004 | | Sergio Migliaccio | GK |  | Miramar Misiones | Misiones |
| 01/2004 | | Juan Toloza | MF |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2004 | | Alejandro Acosta | DF | | Progreso | Progreso |
| 01/2004 | | Pedro Rivera | DF |  | Universidad de Concepción | Universidad de Concepción |
| 01/2004 | | Rodrigo Viligrón | MF | | Colo-Colo | Colo-Colo |
| 01/2004 |  | Damián Yáñez | MF |  | Club Aurora | Club Aurora |