Regulator unit for Yamaha T-Max 500cc, X-Max 125cc maxi scooters.
This is equivalent to Yamaha 4JH-8196001000. There is a cheaper equivalent commonly available with the same connection but is really designed for a different lower output bike.
This is the correct regulator for the following bikes.

This is a three phase regulator. The lower three connections are for the three phases (identical colour wires). The top two connections are red and black (+12V and earth).

Also found on.

Peugeot Jetforce 03-04
           Elyseo 99-01
           Elystar 02-05

Rieju Marathon 09-10
       RS3 10-

Yamaha YZF-R 08-011
           Majesty 250 00-01
           T-Max 500 01-03
           X-Max 125 10-11
           

           

 

RMS Equivalent to Yamaha 4JH-81960-01