Evie and her mother Tina, 37, appeared on ITV s This Morning, which turned their home in Whitby, North Yorkshire, into a scene from The Chronicles Of Narnia.
The schoolgirl was due to have her transplant in September before she, Tina and dad Andy, 49, were forced to launch the Evie Needs a Hero campaign.
She will now have her operation at Great North Children s Hospital, Newcastle, on January 14.
Tina, who also has William, six, said: We got the call while Evie was in hospital being treated for an infection. Evie just turned to me and said, Mummy, you re my hero . This means the world to us as a family and to Evie. This will save her life.