Llanelli have signed former All Blacks prop forward David Hewett from Canterbury Crusaders for two years.
Hewett, who won the last of his 22 caps in the Third-Place play-off against France at last year's World Cup, is expected to arrive at Stradey Park next week until January.
He will return to the reigning Celtic League champions on a two-year deal next June when his contract with Super 12 outfit Crusaders comes to an end.
Scarlets Chief Executive Stuart Gallacher said: 'David is a dynamic and experienced player and is equally at home on either side of the front row, we look forward to welcoming him to the squad.'
Hewett will not be eligible to play in any of the Scarlets remaining pool games in the Heineken Cup.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.