AMD Series High torque motor: 48 volt (11.4 hp @ 2300 rpm) or 36 volt (8 hp @ 1600rpm). Motor requires a minimum 400 amp controller upgrade, 4 gauge cables, heavy duty forward & reverse switch and solenoid. Built for EZGO Marathon electric 1988-1994, EZGO Medalist & TXT 1994-up series, and Yamaha G8, G9, G14 and G16 series golf cart models. 19 spline