Ten months after losing to Argentina in New Zealand for the first time, the All Blacks ruled out any possibility of another upset in the Rugby Championship with three tries in the first 11 minutes and five in the first half which gave them a 31-0 lead at halftime.
If they go on to success at the World Cup in France, the All Blacks will remember Mendoza in the foothills of the Andes as an important stepping stone.
The big win came despite being without some leading players who were held back ahead of the home clash with world champions South Africa next weekend.
"The first half we were outstanding," captain Sam Cane said. "The Pumas came back in the second half and it was a bit of an arm wrestle but I'm really pleased and proud of that result."
The Pumas had shut down the All Blacks with smothering defence to win in Christchurch last year. On Saturday, they so seldom had possession in the first half, they had no way of combating New Zealand's waves of attack.
"We have to be self-critical," said Pumas captain Julian Montoya. "We have to be better for next week (against Australia). But I don't believe in excuses, I don't believe in shortcuts. We have to be better, way better."
The All Blacks quieted concerns about their strength up front with a dominant forward performance.
They won penalties from three of the first four scrums and disrupted the Pumas' lineout, often through lock Josh Lord in his first Test since 2021. Ethan de Groot made a big impact on the All Blacks' loosehead side.
New Zealand's first try came after five minutes as a signal of things to come. Centre Rieko Ioane made a break from inside his own half, combining with new winger Emoni Narawa. Back-rower Shannon Frizell slipped a pass to lock Scott Barrett and veteran hooker Dane Coles took the last pass to score.
Back-rower Ardie Savea scored two minutes later after a strong run by Narawa. The All Blacks won a penalty, took a lineout, moved the ball infield and, after Scott Barrett went close, Savea picked up the ball and dotted it down.
Jordie Barrett, who with brothers Scott and Beauden, were all part of the starting 15, scored in the 11th minute after Beauden broke and turned the ball infield to his brother.
Five eighth Damian McKenzie converted one of the three tries and the All Blacks led 17-0. Argentina chose to kick away their few shreds of possession in the first half, while indiscipline in defence conceded a long string of penalties.
After a hiatus, the All Blacks took up try-scoring again. Ioane scored a try in the 29th off a short pass from McKenzie, and scrumhalf Aaron Smith ran off a lineout drive to score in the last minute of the half.
The sell-out crowd of 42,500 was brought to its feet for the first time in the 51st when prop Lucio Sordoni scored Argentina's first try.
Five minutes later from a scrum, McKenzie made a long cross-field run which negated much of the backline defence and passed to Beauden Barrett who scored.
The All Blacks' defence was tested more regularly in the second half and they responded with some powerful tackles.
The All Blacks' last try went to Narawa on debut and might have cemented his place on the right wing.
Replacement Pumas hooker Agustin Creevy had the last say, marking his record-extending 98th Test appearance with a try in the 82nd.
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