The Kiwi was forced to come from the second row of the grid for Race 3, after having what looked to be a pole lap in qualifying earlier today ruined by a clash with Tim Slade.
That job was made slightly easier on just the second lap of the race when early leader Jack Le Brocq, driving a hastily-repaired Holden following a Race 2 shunt, locked up at the hairpin.
That elevated van Gisbergen to second behind new leader Will Davison, who immediately came under fire from the Red Bull Holden.
It took just a lap for van Gisbergen to find a way a through with a forceful move at Turn 6.
Davison was then left to scrap with teammate Anton De Pasquale and Matt Stone Racing driver Todd Hazelwood, De Pasquale eventually emerging in second place.
In a bid to undercut weekend-long form man van Gisbergen, Dick Johnson Racing opted to pit De Pasquale on Lap 9.
But van Gisbergen had enough pace that he was able to keep going until Lap 23, take his mandatory service, and emerge with both the lead and better quality rubber.
From there it was a case of managing the gap back to the DJR pair as he took his third win from three races.
"It's pretty awesome," said van Gisbergen. "I can't thank Ampol Red Bull Racing enough. The car has been good all weekend and Broc [Feeney] has been up there as well.
"Each race we had to work for it, [there were] some more good passes then, I hope it was good to watch. I'm pumped."
Van Gisbergen also revealed that he tried to trick DJR into pitting its cars early by reporting a lack of rear grip over the radio.
"I was screaming over the radio pretending I had no rear and made them pit early and then I just went," he laughed. "Sucked in."
Davison ended up second after running down De Pasquale on better rubber late in the race.
David Reynolds capped off a solid day with a fourth place to go with his Race 2 podium, while Hazelwood ended up the best of the MSR cars in fifth.
Cam Waters finished sixth ahead of Mark Winterbottom, Feeney, James Courtney and Nick Percat.
It was another tough outing for former series leader Chaz Mostert, though, who could manage just 18th.
His poor weekend has left him fourth in the standings, the gap to now leader Shane van Gisbergen already 145 points.
Anton De Pasquale is closest to van Gisbergen with a 67-point deficit while Davison is 122 points in arrears.
The season continues at the Australian Grand Prix on April 7-10.
Tasmania Supercars - Race 3 results:
|1||97||Shane van Gisbergen||Holden Commodore ZB|
|2||17||Will Davison||Ford Mustang GT||1.188|
|3||11||Anton De Pasquale||Ford Mustang GT||2.783|
|4||26||David Reynolds||Ford Mustang GT||3.197|
|5||35||Todd Hazelwood||Holden Commodore ZB||5.994|
|6||6||Cameron Waters||Ford Mustang GT||7.542|
|7||18||Mark Winterbottom||Holden Commodore ZB||9.679|
|8||88||Broc Feeney||Holden Commodore ZB||10.365|
|9||5||James Courtney||Ford Mustang GT||11.652|
|10||2||Nick Percat||Holden Commodore ZB||15.417|
|11||3||Tim Slade||Ford Mustang GT||16.181|
|12||55||Thomas Randle||Ford Mustang GT||18.062|
|13||20||Scott Pye||Holden Commodore ZB||18.831|
|14||10||Lee Holdsworth||Ford Mustang GT||22.689|
|15||9||Will Brown||Holden Commodore ZB||22.775|
|16||22||Chris Pither||Holden Commodore ZB||25.224|
|17||4||Jack Smith||Holden Commodore ZB||28.000|
|18||25||Chaz Mostert||Holden Commodore ZB||28.115|
|19||96||Macauley Jones||Holden Commodore ZB||29.834|
|20||76||Garry Jacobson||Holden Commodore ZB||30.772|
|21||14||Bryce Fullwood||Holden Commodore ZB||38.690|
|22||99||Brodie Kostecki||Holden Commodore ZB||41.333|
|23||34||Jack Le Brocq||Holden Commodore ZB||42.881|
|24||8||Andre Heimgartner||Holden Commodore ZB||44.193|
|25||56||Jake Kostecki||Ford Mustang GT|
|View full results|