Doc 41 - Parts and parameters been replaced and or changed during Parc Fermé
Technical/Scrutineering
Technical Delegate’s Report
The following parts and parameters have been replaced or changed during the Parc Fermé yesterday and today before the start of the Sprint. All replacements were approved by the FIA technical delegate following written requests from the teams, in accordance with Article B3.5.4 of the 2026 Formula One Sporting Regulations.
Replaced Parts by Team
| Team | Car | Driver | Replaced Parts / Changes |
|---|---|---|---|
| McLaren Mercedes | 81 | Oscar Piastri | • Driver’s drink bag |
| Red Bull Racing RB Ford | 06 | - | • Fuel cell air pump and hose assembly<br>• Brake Master Cylinder<br>• Parameter changes associated with the brake Master Cylinder replacement |
| Aston Martin Aramco Honda | 14 | Fernando Alonso | • RHS rear brake duct liner |
Note: All changes comply with the FIA regulations for the 2026 Miami Grand Prix.