A victim-turned-brazen perp allegedly stole a fire department vehicle on Long Island Saturday evening before authorities quickly tracked him down and arrested him.  

A first responder arrived at the scene of an accident around 6:30 p.m. in a Yaphank fire vehicle and when the first responder left the driver’s seat to assist, the New Hampshire man involved in the accident slipped into the modified pickup truck and took off, Yaphank fire commissioner Don Schaaf told The Post.

Suffolk police, who were also at the scene of the accident, chased after the suspect and arrested him, Schaaf said.

“The car was taken by the individual and Suffolk was in pursuit immediately,” Schaaf said.

“The guy didn’t have a chance.”

Highway patrol officers pursued the vehicle and with the assistance of aviation were able to stop the vehicle and take the driver into custody, officials said.

Jaime Alexander Brayton, 33, was taken to Stony Brook Hospital for treatment to his injuries in the crash. He was then charged with grand larceny, assault and unlawful fleeing a police officer in a motor vehicle, cops said.

Police officer Matthew Corchia was also taken to the hospital and treated for injuries to his shoulder that he incurred while reaching into the vehicle to try to stop Brayton, cops said.