Jordie Barrett is unavailable while Ardie Savea will come off the bench.
The Hurricanes are fifth in the Super Rugby standings and must win and have the Chiefs lose to the Drua to claim fourth place and a home quarter-final for next weekend.
The front row has changed from the Hurricanes last round win over the Reds with Pouri Rakete-Stones starting at loosehead prop.
Coles is at hooker with fellow 2015 Rugby World Cup winner Owen Franks at tighthead prop. It will be the first time the two have started a game together this season.