A perfect five-from-five goalkicking display from first five-eighth Carlos Spencer reaped 14 points and carried New Zealand to victory against a South African side showing far more starch than in the 16-52 capitulation at Pretoria three weeks ago.
Both sides managed one try apiece, a veritable drought for the All Blacks, who scored seven in their last two tests, including the 50-21 win over Australia in Sydney.
The All Blacks become only the second team to beat the Springboks in six consecutive tests. The first was Great Britain -- the forerunner to the British Lions -- 107 years ago.
However, the Springboks will be heartened by their last test before the World Cup, showing vigour in the forward exchanges and more accuracy on defence.
Goalkicking was expected to be one area where the visitors had the edge but while Spencer was on song, opposite Louis Koen could only manage two from five kicks at goal, along with three botched drop-goal attempts.
On a cold, still night, the ball gathered dew leaving the All Blacks backs playing with less confidence than in recent weeks and often forced to kick, with mixed success.
One of the All Blacks' best was lock Ali Williams, who responded to coach John Mitchell's calls for accountability with a lively game around the field and some quality lineout possession.
The All Blacks became frustrated at their inability to win clean ball from rucks and struggled to find the fluency in their counter-attacking that marked their previous two games against the Springboks and the Wallabies.
Some strength-sapping mauling from the South Africans proved effective and some direct running reaped rewards at times against a New Zealand defensive line lacking its usual sting, No 8 Jerry Collins apart.
New Zealand had a decisive edge at scrum time while lineouts were evenly shared, with the All Blacks getting more throws but squandering some of them.
The Springboks had a clear edge in first-half territory and possession and were unlucky to go to the break 11-13 down.
The All Blacks opened the scoring on five minutes through winger Joe Rokocoko, taking his tryscoring record to 11 in just six tests. His pace beat South African fullback Thinus Delport to the ball after fine grubber kick from second five-eighth Aaron Mauger.
The Springboks struck back in the 15min through a brutal individual try to prop Richard Bands.
The powerful tighthead ran 40m, brushing aside opposite number Kees Meeuws, pushing off Spencer and beating the cover defence to the left corner.
The rest of the first-half scoring came through penalty kicks, with Spencer and Koen kicking two apiece. Koen had a chance to put his side ahead on the stroke of halftime but missed what would have been a morale-boosting penalty.
Two more Spencer penalties kicked the All Blacks out to a 19-11 lead after 60 minutes but that score never changed, even though the visitors were camped on attack for most of the game's remainder.
The All Blacks must now prepare to win their second trophy in Auckland next Saturday by beating Australia to reclaim the Bledisloe Cup. It will be the final test for both teams before the World Cup.