Mrs Clark said she sat in her car unsure what to do because she had no cellphone coverage.
"I sat there for some time and cars were just whizzing past me," she said. "I decided to get out of the car with my umbrella and shortly after this young guy pulled up and asked me what was wrong."
The man, who was driving a ute, asked Mrs Clark who he could call for help.
He said that once he got cellphone coverage he would call for help. About half an hour later a tow truck arrived, she said.
She said this was the second time in recent weeks that she had to be taken home in a tow truck.
"The car was brand new. My husband died about 10 weeks ago and this was supposed to be something which would last and it just keeps breaking down," she said. "To be honest I get a bit nervous on my own now."
Mrs Clark said the man who stopped to help her was like a hero.
"He was such a lovely young guy. I don't know how long I would have been out there if he didn't stop to help me. I could have been stuck there all night," she said.
"I feel awful that I can't remember his name but I am so grateful for his help."
If you know who this roadside hero is contact Anita Moran: (07) 348 6199 ext 57055, or email her at anita.moran@dailypost.co.nz.