I assume the links you are referring to are to the Thor repository wiki (currently deprecated).
The links you will find in the BOM of the project website are up to date and will take you to the correct model.
Anyway, the links to the components are for convenience, if you prefer to buy from another store just check that the torque requirements are at least 26N.cm and the motor consumption is around 0.4A powered at 12V.
Best regards! 🙂