They didn’t just stand by — they delivered.

A trio of cops helped an expecting Bronx mom push out a brand new baby boy — right on the steps of the Hunts Point station house, officials said.

The 29-year-old woman’s water broke while in a cab en route to a hospital Friday, so the driver decided to drop her off at the 41st precinct on Longwood Avenue at about 10:15 a.m., police said.

“The cab driver dropped her off and she was basically in labor,” said Officer Rafalina Collado-Gomez, one of the terrific ‘Trimester Trio.’

“She sat on the ground and the baby came out, everything came out.”

The cops then calmed the frantic mother’s frayed nerves.

“She didn’t speak English so she was a little nervous. Her husband was in total shock, he didn’t know whether it was a boy or girl or what to do at that moment,” said Collado-Gómez.

They then drove the new mom, along with the newborn, the father and the couple’s 3-year-old son to Lincoln Hospital. All are doing well, the NYPD said.

“I said you know what, let’s take her to the hospital, because EMS was taking forever. Halfway we met [the paramedics] and they put her in the ambulance, and we escorted them to the hospital,” she said.

Their combined effort managed to get the family to the hospital in just 10 minutes, she noted.

Photos show the officers and EMS standing around the smiling new mom’s hospital bed less than an hour after the boy’s birth.

“NY’s Finest are ready for anything,” NYPD Chief of Department Terence Monahan tweeted.

Collado-Gómez — a mom of three — was happy to be there to help.

“For me it was a nice experience,” she said.

Meanwhile, the newborn already has a second — and very large — extended family.

“If a baby is born on the steps of a precinct, does that make him an honorary cop?” the department tweeted.