I'm sure there are- just a matter of finding them.
In Melbourne you have
Sydney you have:
Jagara spares at Taren Point, 9531-8155 and
If they can't help you then perhaps S&G Barrat can help- they have four outlets worldwide (Shropshire-UK, New Hapmshire-USA, Holland and France. They carry and remanufacture alot of stuff.
Hope this helps.