"Today's the day I get me mug fixed," he said on Facebook.Bozzone also thanked the public for all the love and support.
"You are amazing and I'm so grateful."
Fans were quick to offer their support and best wishes ahead of his operation today.
"Speedy recovery, Terenzo," one wrote.
"Eh stay strong, fella! You're tough as nails. Let it heal, let it heart - take care," another said.
While one fan simply said: "Thinking of you."
The man believed to be the driver of the truck that hit Bozzone, leaving him seriously injured, has been tracked down by police.
Bozzone suffered facial and head injuries and a concussion in the crash.
Emergency services were called to Waitakere Rd, near Kumeu, on July 3.
The ironman has won 37 international titles, which includes 23 Ironman 70.3 or half-Ironman distance triathlon titles.
He is married to Kelly Bozzone, and has a son called Cavalo.