The onetime operator of an upstate New York limousine company will spend between five and 15 years behind bars over the horrific 2018 crash that killed 20 people, including 17 revelers headed to a birthday bash.

Nauman Hussain, 33, was hit with the maximum sentence in Schoharie County Court Wednesday, two weeks after a jury convicted him of 20 counts of second-degree manslaughter in the Oct. 6, 2018 catastrophe.

Relatives of the victims packed the courtroom as Supreme Court Justice Peter Lynch handed down the sentence, the Albany Times-Union reported.

“When Savannah died part of me died with her,” Kim Bursese, whose daughter was killed in the devastating crash, told the court. “She did the right thing, and it cost her her life.”

The group of friends had rented the 31-foot stretch limo, a modified 2001 Ford Excursion, from Prestige Limousine & Chauffer Service to attend a surprise birthday party near Cooperstown — but the limo’s brakes failed and it careened through an intersection in Schoharie.

The vehicle slammed into a convenience store, killing two bystanders and the driver.

Prosecutors said Hussain, who ran Prestige Limousine at the time of the crash, was aware that the brakes were faulty and still rented out the limo.

Defense lawyers argued that a local auto repair shop and state Department of Transportation inspectors should shoulder the blame.

But the jury agreed with the prosecution, finding Hussain guilty after just six hours of deliberations of May 17.

Hussain had previously cut a plea deal with prosecutors in 2021 that would’ve allowed him to avoid jail time.

But a judge threw out the deal and ordered that the case go to trial.

The crash was the deadliest in the US in decades and forced state lawmakers to pass legislation that provided more limousine safety requirements and restrictions.