Cops shut down a lane in the Lincoln Tunnel so a visiting businessman could be escorted through it at the behest of a major de Blasio fundraiser, federal prosecutors charged Monday.

The outrageous move was revealed as part of damning criminal indictments unveiled Monday against four NYPD officers and the shady “fixer’’ who allegedly arranged it.

The stunning arrests marked the first time cops have been charged in the sweeping 3½-year corruption investigation rocking the department and Mayor Bill de Blasio’s office, which is being probed for its fundraising.

Federal prosecutors allege that the civilian behind the closure, Borough Park businessman Jeremy Reichberg, and his pal, real estate investor Jona Rechnitz, spent more than $100,000 on police bribes between 2012 and 2015.

“They got, in effect, a private police force for themselves and their friends — effectively they got cops on call,” Manhattan US Attorney Preet Bharara said.

The criminal indictments alleged that in one instance, “Reichberg, using his connections in local law enforcement agencies, was able to arrange for the closure of a lane in the Lincoln Tunnel and a police escort down that lane for a businessman visiting the United States.”

It was unclear when the shutdown occurred, but law enforcement sources said the request did not go through official channels and there was no documentation of it, suggesting it could have been orchestrated in the middle of the night.

Bharara said the busted NYPD officials accepted bribes that included costly trips and romps with a prostitute.

‘They got … a private police force for themselves and their friends.’ - Manhattan US Attorney Preet Bharara

Deputy Chief Michael Harrington, Deputy Inspector James Grant and Sgt. David Villanueva were all arrested at their homes at 6 a.m., prosecutors said.

A fourth cop, Officer Richard Ochetal, had already pleaded guilty to accepting bribes in exchange for expediting gun permit applications, according to court papers.

“It is a heartbreaking thing,’’ Bharara said at a press conference announcing the charges. “An officer who betrays his badge betrays every honorable officer.’’

The damning criminal indictments reveal just how influential Reichberg and Rechnitz became through their department connections.

With Rechnitz’s help, Reichberg arranged free “flights, hotel rooms, prostitutes, expensive meals, home improvements, and prime seats to sporting events, among other things,” for the cops, court documents say.

In exchange, Grant and Harrington arranged police escorts for the businessmen, handled their personal business disputes, gave them VIP access to events such as New Year’s Eve and the Marathon and provided them with NYPD cards that got them out of traffic tickets, prosecutors allege.

Reichberg was even caught on an early 2015 wiretap indicating that his NYPD connections were so tight that he “was dispensing advice on promotions to members of the NYPD and taking steps to facilitate promotions.’’

Additional reporting by Brooke Baitinger