While the starting line-up remains as named on Tuesday, Kata comes onto the bench for prop Katamiro Atera.
While his season has been disrupted by injury, Kata, who played First XV rugby union for Sacred Heart College last year, has impressed when he has played, scoring 11 tries in his 13 matches and also kicking 22 goals for a total of 88 points.
He'll come off the interchange to enable coach John Ackland to switch utility Adam Tuimavave-Gerrard from his starting centres role to the back row at some stage in the contest.
VODAFONE JUNIOR WARRIORS v SOUTH SYDNEY RABBITOHS
ANZ Stadium, Homebush
5.15pm, Friday, September 13
Referees: David Munro and Matt Noyen
VODAFONE JUNIOR WARRIORS
13DAVID BHANA (c)
HEAD COACH: JOHN ACKLAND