Habana, South Africa's record tryscorer, touched down in the 28th, 60th and 78th minutes while Zane Kirchner and Francois Louw also crossed as the Springboks maintained their 100% record against Australia at Loftus Versfeld with a sixth win out of six.
The remainder of the home side's points came from the boot of scrum-half Ruan Pienaar, who converted three of the five tries, as South Africa earned a second victory in five matches to lift them into second place onto 12 points.
They are four points behind unbeaten leaders New Zealand ahead of the All Blacks' clash in Argentina.
Australia, whose points on Saturday came from an unconverted second-half try from Mike Harris and a Kurtley Beale penalty, are third in the standings on eight points after slumping to their third loss.
The Wallabies were badly hit by injuries in the defeat, though, and used all seven substitutes during the match before playing the final nine minutes with just 14 men.
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.