Flanker James Doyle has a groin niggle, so Brandon Nansen slots in at No 6, giving four viable lineout options. No 10 Daniel Halangahu may return from injury - he is bracketed - and the Australian would take the goalkicks from captain Bryn Hall, who filled that role against Manawatu. Dillon Wihongi comes onto the bench, along with possible debutant Kima Iosua.
Otago is coming off two good victories on the bounce, including a 61-7 pumping of neighbours Southland.
"They carry hard, defend well and stay in the game for 80 minutes. They don't have any superstars, but they play as a team and are hard to beat. They travel well too," said Jackson.
Otago have made three changes to their starting XV, and possess some talented backs of the ilk of halfback Josh Renton, centre Matt Faddes, wing Sio Tomkinson and fullback Michael Collins.
North Harbour: Josh Rowland/Matt McGahan, Nafi Tuitavake, Pita Ahki, Michael Little, Tevita Li, Daniel Halangahu/Matt McGahan, Bryn Hall (c), Chris Vui, Josh Blucher, Brandon Nansen, Hayden Triggs, Gerard Tuioti-Mariner, Sione Mafileo, James Parsons, Nic Mayhew; Reserves: Ray Niuia, Alex Woonton, George Tuinukuafe, Dillon Wihongi, Kima Iosua, David Bason, Matt Vaega, Josh Rowland/Junior Tofa-Va'a