Find the Manufacturer’s Code (e.g., K3001 ), not just the serial number. The first digit after the letter tells you the year. When in doubt, compare the body style to photos online of a Marathon (pre-1994), Medalist (1994-1995), TXT (1996-2017), or RXV (2008+).
eZGo has changed its numbering system over the decades. Find your tag first: ezgo serial number identification