The G2 Stage V (incl. T4F) DM-DN engine software from HD Construction Equipment is the diagnostic and programming tool for Hyundai Infracore (formerly Doosan) DM01-03 and DN02-03 diesel engines meeting Stage V and Tier 4 Final standards. It enables real-time diagnostics, calibration, component testing, and aftertreatment regeneration from an intuitive interface, ideal for optimizing excavators, loaders, and forklifts while minimizing downtime.