An injured Kieran Read will sit out the opening match against Tonga on Friday.
Jerome Kaino has been entrenched in the All Blacks for some time but, in a selection quirk, is on the cusp of his first World Cup.
The blindside flanker first tasted work with the side in 2004, but injuries and a congested loose forward group meant he missed the last global tournament in France.
However the American Samoan-born Kaino, who became a father again last week, is now poised to take a leading role when the All Blacks start their World Cup campaign on his home Eden Park patch on Friday against Tonga.
"It would be special playing in any World Cup. I'd love to run out there in the first game and get the feel of what all this World Cup hype and everything is all about," he said.