Any fears of facing the Kangaroos are long gone, Tongan captain Jason Taumalolo says as his side aims for rare back-to-back Test wins over Australia.

The sides meet in Brisbane in Friday's Pacific Championships opener, their first encounter since Tonga's famous 16-12 triumph in Auckland five years ago.

Australia are coming off a historic 30-0 drubbing from New Zealand in November's Pacific Cup final.

Not since 2014-15 have Australia lost consecutive Tests to the same nation, when three straight defeats to New Zealand triggered a review that prompted Tim Sheens to step down as coach.

France's back-to-back wins in Australia's 1978 European tour was the last time the Kangaroos had lost two consecutive games to the same team.

But Tonga, at Suncorp Stadium and then New Zealand on October 27 in Christchurch, will get their chance against an Australian side that's already responded to that Kiwis loss by naming a host of debutants in their 21-man squad.

"Not really to be honest," Taumalolo said when asked if facing the Kangaroos still carried a fear factor.

"They've got a great team, but so do we and it's what we do on Friday night that matters.

"Oppositions, not just Australia but the other nations, have definitely improved over the last few years, and it makes for a better game of footy."

Taumalolo's pledge to Mate Ma'a ahead of New Zealand in 2018 came after he had led them to the 2017 World Cup semi-finals.

It inspired others to follow the North Queensland star's lead, their ensuing defeat of Australia shaking up international rugby league.

Coach Kristian Woolf has been at the helm throughout, the side now boasting a world-class line-up and arguably the best forward pack in Test rugby league.

"A lot of the (2019) squad have moved on, but there's some good memories, the atmosphere made it so special," Taumalolo said of their last Kangaroos clash.

"That was a special team we had in 2019, and we have a special group in camp here that can do special things too.

"We know what we're capable of."

Dolphins halfback Isaiya Katoa and Huddersfield's Tuimoala Lolohea form a dangerous play-making pair, while Eliesa Katoa, Keaon Koloamatangi, Haumole Olakau'atu, Felise Kaufusi, Taniela Paseka and Taumalolo will offer Woolf plenty up front.

"A lot of us have played together in the past, we have that chemistry," Taumalolo said, confident they can match Australia's forwards on Friday.

"And guys like Paseka, he's already found his feet."