Mayor Eric Adams is pushing the feds to charge the sadistic Guatemalan migrant who torched a woman to death on the subway – in the latest move he’s willing to open up the sanctuary city to the incoming Trump administration.

Federal arson charges against firebug Sebastian Zapete-Calil would be piled on top of local murder and arson charges against the illegal immigrant, who’s already facing at the hands of Brooklyn District Attorney Eric Gonzalez.

“Like all New Yorkers, Mayor Adams is deeply disturbed by the heinous and depraved act that Sebastian Zapete-Calil is accused of,” City Hall spokeswoman Kayla Mamelak said.

“Lighting another human being on fire and watching them burn alive reflects a level of evil that cannot be tolerated,” Mamelak added.

“That is why, in coordination with Police Commissioner [Jessica] Tisch, Mayor Adams has directed the NYPD to work within our legal authority and in partnership with ICE’s Homeland Security Investigations team to explore criminal charges against Mr. Zapete-Calil under the federal arson statute.”

Although the Brooklyn DA’s office said it’s willing to “collaborate” with the feds, the local murder rap would result into a harsher sentence if a prosecutors win a conviction.

“Brooklyn prosecutors are prepared to pursue the most serious charges available under New York law, confident in the strength of our case, and committed to holding the alleged perpetrator fully accountable for this truly heinous murder,” a spokesperson said in a statement.

“Here, New York’s first-degree murder statute provides for a maximum sentence of life without the possibility of parole, greater than the sentence available for federal arson charges.”

That’s why one political insider said Adams’ statement is more of a signal, sent to show he is willing to cooperate with US Immigration and Customs Enforcement and President-elect Donald Trump’s administration to crack down on criminal migrants.

“It’s a gesture on his part to cooperate with Trump’s deal on arresting, prosecuting and deporting criminal migrants,” political consultant Hank Sheinkopf said.

“It makes it appear that he’s doing something,” he added, saying the statement is a “slap at the left,” particularly progressives on the City Council who have resisted efforts to unwind sanctuary policies through legslative action.

Hizzoner has said he is now considering executive orders to peel back the Big Apple’s sanctuary status, which blocks local law enforcement from cooperating with federal immigration authorities — a point of contention since the first Trump term, prior to Adams’ election.

Adams also met with Trump’s chosen “border czar” Tom Homan, with both sides optimistic about cooperating moving forward. Trump has also said he’d consider a pardon for Adams, who is facing federal bribery charges.

“He’s trying to hit a home run,” Sheinkopf said. “Will it work? I’m not so sure.”

A conviction under federal law for arson resulting in death could mean a 25-year-to-life sentence.

Federal arson charges for property used in interstate commerce resulting in injury could mean a maximum of 40 years under the law.

Zapeta Calil is accused of torching a sleeping woman on an F train on Coney Island Sunday, leaving her body so badly burned that authorities have struggled to identify her after the horrific attack.

Zapeta-Calil had snuck back into the country at some point after he was previously deported, sources had told The Post. The accused firebug first entered the US illegally at the Arizona border in 2018 but was nabbed just days later and shipped back home.