The Black Caps have completed an unbeaten tour of Ireland after winning the third and final Twenty20 by six wickets in Belfast on Saturday.
New Zealand had to chase for the first time after losing the toss and overcame Ireland's decent 174-6 with 180-4 and an over to spare.
The Black Caps also won the one-day international series 3-0.
Glenn Phillips and Daryl Mitchell kept the target in sight for New Zealand with brilliant rotation of the strike and running between the wickets.
Phillips, dropped on 13 and 15, showed a measure of the pressure he turned back on Ireland by hitting only one six and one boundary as he finished 56 not out from 44 balls.