Brett Connolly notched the tying goal with 3:08 left, and Alex Ovechkin added his NHL-leading 28th goal and two assists for first-place Washington.
Lars Eller scored on the power play and Philipp Grubauer stopped 36 shots to help the Capitals earn their second come-from-behind victory in Raleigh in 10 nights. Washington won 5-4 in overtime on Jan. 2 on two late goals by Ovechkin.
The Hurricanes got power-play goals from Jordan Staal and Sebastian Aho — with each player assisting on the other’s goal — and an even-strength goal from Jeff Skinner.
Carolina appeared headed for its second regulation victory over Washington in two nights, but T.J. Oshie pressured All-Star Noah Hanifin into a turnover behind the net and Connolly snapped the loose puck between Cam Ward’s legs.
Beagle then stuffed in a rebound past an outstretched Ward in the closing seconds.
The game came hours after Carolina publicly introduced Dallas billionaire Tom Dundon as the new majority owner and successor to longtime owner Peter Karmanos Jr. Dundon took over control of the team Thursday after the sale closed.
Ward made 23 saves — including a tumbling gem midway through the third to rob Evgeny Kuznetsov — for Carolina, which was down a handful of regulars for the rematch of their 3-1 victory Thursday night .
Forward Derek Ryan didn’t play after taking a hit from Tom Wilson the night before, defenseman Brett Pesce was placed on injured reserve earlier in the day and key forwards Joakim Nordstrom and Elias Lindholm were scratched with illnesses. Then, defenseman Trevor van Riemsdyk and Klas Dahlbeck skated off after being hit in their legs with shots, though both players quickly returned.
NOTES: Aho has goals in three straight games, and Staal has points in four straight. … The Hurricanes recalled C Lucas Wallmark from their AHL affiliate in Charlotte to replace Pesce. … RW Lee Stempniak made his season debut for Carolina. He missed the first half of the season with an upper-body injury. … Washington recalled C Travis Boyd from its AHL affiliate in Hershey, but he was scratched.
Capitals: After their week off, they visit New Jersey on Jan. 18.
Hurricanes: Wrap up a two-game homestand against Calgary on Sunday.