Crosby has scored 15 points (three goals, 12 assists) in his past nine games.
"I can see it every night, just his game coming," Penguins coach Mike Sullivan said. "It just gets better and better. He's all over the puck."
Jesse Ylonen scored his first NHL goal on a slap shot with three seconds remaining in the period, cutting it to 3-2.
"It's a good feeling, but it's not a good feeling that we lost," Ylonen said after his fourth NHL game. "That's the most important thing."
Crosby used a backhand pass to set up Brian Dumoulin for a one-timer 28 seconds into the third period, pushing it to 4-2.
"Sid's the type of guy where there's some guys, obviously, in the league where you know they're going to make the play," Dumoulin said. "Sid's one of those. He can have two guys on him, three guys or could be in a tough situation, but you know he'll find a way to get the puck through and get it to you. Obviously, have to be ready."
Brian Boyle scored on a snap shot for the 5-2 final at 9:38.
NOTES: Crosby, who has played 1,055 NHL games, joined Wayne Gretzky, Mario Lemieux, Jaromir Jagr, Ron Francis, Paul Coffey, Mark Messier, Marcel Dionne, Gordie Howe, Steve Yzerman, Joe Sakic, Phil Esposito, Ray Bourque and Stan Mikita as the players to have at least 400 multipoint games. Only Crosby and Jagr have not been inducted into the Hockey Hall of Fame. … Letang has 135 goals and 465 assists in 887 NHL games. He is the eighth player to score 600 points with the Penguins, joining Lemieux (1,723), Crosby (1,342),
Evgeni Malkin
(1,104), Jagr (1,079), Rick Kehoe (636), Francis (613) and Jean Pronovost (603). … Canadiens defenseman Chris Wideman did not play to attend the birth of his child. … Petry had one shot on goal and one hit in 20:26 of ice time in his return from missing four games with an upper-body injury. … Heinen had two shots on goal in his 300th NHL game. He has scored 134 points (52 goals, 82 assists) with the Boston Bruins, Anaheim Ducks and Penguins.