The wheels of the vehicle reportedly ran directly over the man, who had been camping on the island and was with a group of people on an inland track, when the incident occurred.
The Bundaberg RACQ LifeFlight Rescue helicopter landed above the high tide mark, on a beach on the western side of the island, just before 8.30pm.
Fraser Island Queensland Ambulance Service (QAS) paramedics were first on the scene and with the help of several friends of the injured man, carried him some distance on a stretcher, to the helicopter.
RACQ LifeFlight Rescue helicopter pilot Tony Miller said it appeared the patient was fortunate the incident happened on sand.
“We were told the tyres ran right over him, so therefore the outcome was less traumatic, being on sand, than if he had been on a hard surface such as a road, where he could well have been crushed,” he said.
The patient, aged in his fifties, suffered multiple injuries, including head lacerations.
He was airlifted to Sunshine Coast University Hospital, under the care of the RACQ LifeFlight Rescue QAS Flight Paramedic.