THIS IS A LUCAS 47244 12 VOLT 3 WIRE 14.5 AMP THREE PHASE HIGH OUTPUT ALTERNATOR COMPLETE, ROTOR, STATOR AND SOLID STATE REGULATOR/RECTIFIER. IT'S A COMPLETE KIT TO UPGRADE TO 3 PHASE HIGH OUTPUT ELECTRICS, SO IS GREAT IF YOU HAVE ELECTRONIC IGNITION AND HALOGEN HEADLIGHT.