MIAMI — Stop me if you’ve heard this one before: Pete Alonso saved the Mets with a late-game home run.

With the Mets down 4-1 to the Miami Marlins in the top of the eighth inning on Wednesday at LoanDepot Park, Alonso teed off on right-hander Calvin Faucher sending a three-run bomb 415 over the center field fence to tie the game. It was classic Polar Bear and it breathed new life into the Mets, who won 6-5 in 11 innings.

“We don’t give up until the last out is made.”

Alonso has been outstanding to start the season, with two game-changing home runs and a 1.090 OPS.

“We know how much he means to this team, to this organization, to the fan base,” said manager Carlos Mendoza. “He’s getting results, and that’s what we expect out of him — be a guy in the middle of our lineup that is going to contribute a lot.”

In the top of the 11th, right-hander Xzavion Curry walked Jesse Winker on four pitches to hand the Mets back the lead. Mark Vientos, whose third-inning error resulted in the go-ahead run for Miami, hit a chopper to shortstop Xavier Edwards, who fumbled it for an error himself, allowing Alonso to score.

The run proved crucial when his former University of Florida teammate, left-hander Danny Young, gave up a run in bottom of the inning to cut the Mets’ lead to one run. Huascar Brazobán, the last man in the bullpen, came in with runners on the corners and one out. The former Marlins reliever retired the next two to convert his first career save, striking out Otto Lopez for the final out.

Brazobán has yet to allow an earned run in five innings.

“He’s been huge,” Mendoza said of the journeyman reliever. “Not only saving the bullpen the past two outings, but today, coming into that situation, getting the save with traffic, runners on and the game on the line facing two righties, he came in and threw strikes, attacked the strike zone, got the fly ball and then got the last out. Very impressive for him.”

The rally came after a relatively sloppy game by the Mets.

In his second start, Clay Holmes was effectively wild, holding the Marlins to two runs (one earned) over 4 2/3 innings. Both runs came in the bottom of the third, an inning that featured a fly ball lost in the sun and some dismal defense. The Marlins (4-3) padded their lead with two runs off left-hander A.J. Minter in the seventh.

But in the top of the eighth with two out and two on, Alonso battled Faucher for nine pitches, going down 2-1 before looking at strike 2. He fouled off four in a row before getting a fastball on the outside and drilling it 113.4 MPH off the bat to dead center.

“I was fighting off some really tough pitches there,” he said. “He came at me with his best stuff, and he located some good ones, especially early in the count. But I was able to just stay in control and let the ball show up where I wanted it to.”

Suddenly, the Mets could do no wrong.

Edwin Diaz and Jose Butto (1-0) combined for three scoreless innings to keep the tie intact. Catcher Luis Torrens made two tough plays in the bottom of the eighth, reaching back to get an out at home to keep the game tied, and getting Conine trying to steal second with a throw from his knees.

“Unbelievable play there on a ball that he’s got to reach [for], and then right away, apply the tag,” Mendoza said of the play at the plate. “Bang-bang play, One of the biggest plays in the game. The caught stealing with Diaz there, [Torrens] throwing from his knees was impressive, too. Credit to him, credit to the whole bullpen, but that play in particular was not an easy one.”

Right-hander Connor Gillispie limited the Mets to one run on four hits over five innings of work, striking out six.

Alonso’s home run overshadowed rookie Hayden Senger’s first big league hit. The 27-year-old who works at Whole Foods in the offseason took a 1-2 sweeper from Gillispie in the fifth and drove it the other way to right field.

The Mets (3-3) open the home slate Friday afternoon against the Toronto Blue Jays, with Soto set to make his long-awaited Citi Field debut.

“Crazy game,” Mendoza said. “Didn’t play well early, didn’t make a couple of plays, at-bats were on and off. I’m just glad that we found a way to get the job done, got the win [and] won the series. Now, we get to go home and play in front of our fans.”