Family and fellow firefighters gathered Wednesday to remember the off-duty FDNY member killed in a road-rage incident on the Belt Parkway.

“He was my best friend,” firefighter Joseph Romeo said at a wake for Faizal Coto, who was bashed over the head and left for dead in a dust-up with another driver in Brooklyn Sunday. “I think he was everybody’s best friend.”

Romeo, 27, and Coto, 33, entered the FDNY together in 2015 and fought fires side-by-side.

“We’re here for the family,” said Romeo, one of hundreds of firefighters in their dress blues. “And we’re going to make sure his memory lives on.”

Joseph Desmond, a 29-year-old reputed Latin Kings gangbanger and the registered owner of a silver Infiniti involved in the road-rage incident, was arrested Tuesday in New Jersey on a parole violation. He is awaiting extradition to New York and has yet to be charged in Coto’s death, but NYPD Chief of Detectives Dermot Shea said Wednesday he expects Desmond “will be charged with murder.”