HD Construction Equipment is expanding into the fast-growing US data center power market with a 390 billion won ($291.4 million) engine supply deal. The company announced Wednesday it signed an agreement with US power infrastructure solutions provider ERock to supply 22-liter, high-efficiency long-block gas engines from 2027 through 2028. ERock will integrate these partially assembled engines into generator sets to power hyperscale data centers operated by US tech companies.