Duclair scored a power-play goal to give the Islanders a 1-0 lead at 11:10 of the first period. Dobson’s wrist shot from the point deflected off Duclair’s skate and past Ingram’s left pad.
Utah challenged the play for goalie interference, but the call stood after a video review.
Crouse tied the game 1-1 with his own power-play goal at 19:01, beating Varlamov over his glove with a one-timer from the slot.
Barrett Hayton gave Utah a 2-1 lead at 13:07 of the second period. He deflected Sergachev's one-timer from the top of the left circle blocker side.
Bo Horvat tied it 2-2 at 1:03 of the third period, burying a one-timer in the low slot off a pass from Duclair from behind the net.
Pageau then gave the Islanders a 3-2 lead with a short-handed goal at 6:52. Simon Holmstrom's initial shot off the rush was stopped by Ingram, but Pageau knocked the rebound into the open net.
However, Guenther scored on the same power play to tie it 3-3 at 7:37. He beat Varlamov blocker side with a one-timer from the left face-off dot off a cross-ice feed from Keller.
“I think we have a deep team,” Guenther said. “Something we take pride in is having four lines that can roll over, keep going, and hem teams in. Throughout the game, we felt pretty confident getting opportunities, and it's one of those things where we got belief in each other in that room. So when you go down, it's pretty easy to come back.”