Genuine Hatz 6-Wire 12V Regulator 1B20 - 1B50 - 01983800. OEM No. 01248121 - 01248123, 01871002, 01916800, 01983800. 1B20, 1B30, 1B40, 1D41, 1D42, 1B50, 2G40. Genuine Hatz part suitable for the following makes & models;.
eBay