Rene Ranger made his return to the Cambridge Blue on the left wing and, to the delight of the strong Kerikeri crowd, pounced on a loose pass to score the final try.
Replacement first five Peter Breen added the extras on both tries to give Northland the 24-point win.
The game gave the squad the chance to stretch their legs, particularly new signings Tim Bond and Murray Douglas.
The official squad will be named on August 8, two days before they travel to QBE Stadium to take on Harbour in a return fixture.