Dealer principal Barry Sproule said: "This is a big win and we are very thankful for our loyal customers.
"As a family owned and operated Harley-Davidson dealership the focus is on yesteryear's customer service values, where customers to the dealership are made to feel appreciated and respected. The Road and Sport team are dedicated to providing a great experience to all our customers.
We aim to go beyond expectations that come with owning a Harley-Davidson motorcycle and the lifestyle that it is known for."
Alongside the dealer of the year, the runner-ups were Gold Coast Harley-Davidson, Geelong Harley-Davidson and Horsham Harley-Davidson.
The Dealer of the Year awards officially acknowledges excellence across all areas of dealership operations in the Road to Excellence Program. Dealers are assessed against a strict business criteria including customer satisfaction and commitment to training.