The relay quartet of Chayut Kongprasit, Sora-at Dabbang, Siripol Phanpae and Puripol Boonson broke the previous Games record set when Thailand had won the gold at the 2019 Games.
"Puripol, a 16-year-old who ran the final leg, helped the team achieve 38.58 seconds, breaking the previous record of 39.90 seconds," the Athletic Association of Thailand said.
Malaysia and Singapore won the silver and bronze, respectively.