Check the listing for details. 1EA NEW 12V OR 6V REGULATOR RECTIFIER PIGTAIL HARNESS FOR ENGINE SWAPS S1255. Condition: New other (see details). Listed at 15.99 USD. 12V_or_6V CT70 REGULATOR RECTIFIER_PIGTAIL CLICK FOR_INSTRUCTIONS (SUB_W_12/12/6/6) S1255 YOU CAN USE A 12V REG/REC & BATTERY WITH THIS COMBINATION OUR 12V REGULATOR RECTIFIER IS SKU # S1070OUR 6V REGULATOR RECTIFIER IS SKU # S1249 NOTE!! the yellow wire coming out of the reg/rec never has it's own power,, it just "T's" into the yellow wire that comes from the engine's stator wire, then goes to the headlight dimmer switch. it takes excess voltage and delivers it back to ground. thus the regulator part of the regulator/rectifier. THIS GREAT ITEM IS IN STOCK IN ODELL NEBRASKA READY TO SHIP OUT ASAP AS ALWAYS IN STOCK AND FREE SHIPPING FROM NEBRASKA IF YOU NEED MORE RELATED PARTS ? SEE BEATRICE CYCLE'S EBAY STORE WE ONLY SELL REPLACEMENT PARTS FOR SINGLE CYLINDER HONDA BIKES TRIKES AND QUADS!!