Carter gave the Penguins a 1-0 lead at 1:47 of the first period when his cross-crease pass for Jason Zucker redirected in off the stick of Grubauer.
Crosby made it 2-0 at 4:42, jamming in a puck near the right post after a one-timer from Guentzel trickled through Grubauer. Crosby has 11 points (three goals, eight assists) during a six-game point streak.
"I think the chances have been there last six or seven [games]," Crosby said. "Before they started going in, I think there's a lot of chances there. Hopefully, it keeps going that way. Obviously, [Guentzel] and [Evan Rodrigues] are doing some great things out there and making some plays. We just want to keep going no matter who's putting it in. It doesn't matter as long as it's going in."
Heinen chased Grubauer when he made it 3-0 at 5:07 with a shot glove side from the top of the right circle.
Eberle pulled the Kraken to within 3-1 at 3:43 of the second period, tapping in a cross-crease pass from Alex Wennberg during a delayed penalty.
However, Guentzel extended the lead to 4-1 at 18:31 on a 2-on-1 with Rodrigues, and Carter scored 23 seconds later to make it 5-1 when he knocked in a rebound with one hand on his stick off the shin pad of Jamie Oleksiak.
"Ideally, we wouldn't have given them some of the looks they got in the second," Crosby said. "You know that they're going to push, and when you get a lead like that, sometimes it's hard not to sit back. Casey made some great saves and just kind of allowed us to get that next one. We had a couple of good looks and they didn't go, but to get a couple late like that was a huge momentum swing."