Many in the music business who’ve clashed with famously tough former Warner and Def Jam exec Lyor Cohen can attest it was like being hit by a truck. But yesterday, Cohen actually hit a domestic worker in the Hamptons with his car. We’re told Cohen — the on/off/on paramour of Tory Burch — got into an accident with a housekeeper crossing the street to catch a bus in Water Mill. Sources tell us the music mogul was cruising in his Audi near SoulCycle’s Water Mill studio when Monserrate Marquez stepped into the street and was hit by Cohen’s driver’s side mirror. He pulled over to assist the woman, who was visibly shaken, according to witnesses, who add that he quickly flagged down a police officer driving down the street who in turn called an ambulance. Marquez was taken to Southampton Hospital and treated for a hand injury and released yesterday afternoon. Cohen declined to comment.