The win was sealed three minutes out from full time with a try to halfback Watson Boas in front of another sell-out crowd in Port Moresby on Sunday afternoon.
It was the Wolfhounds who opened the scoring after four minutes through hooker Michael McIlorum, who scored after Kumuls captain, David Mead, failed to ground the ball in the in-goal area.
After dominating possession, the Kumuls finally got on the board ten minutes later.
The first try came from some razzle dazzle football which created space out wide for a barnstorming Gary Lo.
