The homeless man who teamed up with a New Jersey couple in a $400,000 fraud on GoFundMe has admitted to his role in the ruse — and will cooperate with prosecutors.

Johnny Bobbitt, 36, pleaded guilty Friday in New Jersey Superior Court to a charge of conspiracy to commit theft by deception.

He is expected to enter a state drug court treatment program after his April sentencing and faces five years probation.

He’s also set to testify about the scheme.

Katelyn McClure claimed online she was stranded on a Philadelphia highway in 2017 until Bobbitt handed over his last $20 so she could buy gas for her car — and her heartwarming tale went viral.

McClure, 28, of Bordentown, NJ, and then boyfriend Mark D’Amico, 39, started a GoFundMe campaign to share the story and raise money for Bobbitt, a homeless vet.

“He will never have to worry about a roof over his head again!!” the couple promised on the crowd-funding site.

More than 14,000 donors kicked in cash.

But the story came under scrutiny when Bobbitt sued the couple, saying they had not given him the money.

The lawsuit prompted investigators to look into the matter.

All three were arrested in November and charged by the Burlington County, NJ, prosecutor with theft by deception and conspiracy to commit theft by deception.

The couple’s cases are pending presentation to a grand jury for possible indictment.

“The entire campaign was predicated on a lie,” Scott Coffina, the prosecutor, said at the time. “It was fictitious and illegal and there are consequences.”

McClure did not run out of gas and Bobbitt did not give her money.

Instead, she and D’Amico had met Bobbitt about a month earlier during one of their frequent trips to a local casino, Coffina’s office said.

Shortly after setting up the GoFundMe page, McClure texted a friend to say the story was “completely made up,” prosecutors said.

“I had to make something up to make people feel bad,” McClure said in one of 60,000 texts reviewed by investigators.

The prosecutor’s office alleged that the couple used the donations to buy a BMW, travel to Las Vegas, gamble, and purchase high-end handbags.

McClure transferred $25,000 from the campaign into Bobbitt’s account, and he admitted in court last week he used some of that to buy drugs.

Bobbitt agreed to cooperate against McClure and D’Amico in the state case.

Separately, Bobbitt and McClure were also charged with federal crimes.

He pleaded guilty last week in federal court to a charge of conspiracy to commit money laundering and could face up to 10 years in prison.

McClure pleaded guilty to one federal count of conspiracy to commit fraud.

D’Amico was not charged with a federal crime.

GoFundMe has since refunded the $400,000 to donors.

With Post wires