He made his league debut in 1970 at the age of 17 for the West Adelaide Football Club.
In 1973 and 1974 he played in the VFL with Richmond Football Club and although he could not bring with him his prolific goal-kicking from South Australia he did once manage five goals in a game against Fitzroy.
Hewitt returned to West Adelaide in 1976 and stayed for two seasons before joining Woodville in 1978.
He finished his career at South Adelaide with whom he played 86 games and kicked 78 goals before retiring in 1986.
Hewitt represented South Australia at the 1972 Perth Carnival and played five interstate football games in all, for 13 goals.