Jakob Chychrun's power-play goal at 19:57 cut it to 2-1. Keller's pass along the goal line hit Chychrun at the top of the crease.
Keller tied it 2-2 at 5:17, cutting across the ice for a backhand from the right circle.
"But that's a hungry team, we knew that coming into it and I don't think their record reflects how good they actually are," Coyotes forward Nick Bjugstad said. "I didn't think we had enough juice. … That's a good team that's hungry, and they were just hungrier than us."
Tkachuk's second goal gave Florida a 3-2 lead at 10:37 before Bjugstad redirected J.J. Moser's shot from the left point for a 3-3 tie at 13:59, his third goal in three games.
"When they tied the game, we got better in our second period," Maurice said. "We didn't bend at that point. … They just beat [the] Colorado [Avalanche], they beat [the Los Angeles Kings], they put up six [goals] on [the] Toronto [Maple Leafs]. It was a good National Hockey League win."
NOTES:Eric Staal (38 years, 66 days) is the oldest Panthers player with a multigoal game since Jaromir Jagr (44 years, 24 days) on March 10, 2016. … Tkachuk's priot regular-season hat trick was with the Calgary Flames on April 12, 2022. … Tkachuk (25) and his father, Keith Tkachuk (75), have 100 combined multigoal games. The only father-son duos with more are Bobby and Brett Hull (279), Gordie and Mark Howe (167) and Peter and Paul Stastny (112). … Nick Schmaltz, a forward, returned for Arizona after missing one game because of an upper-body injury. He had an assist in 19:23.