Lincoln Service Parts 1 › Lincoln Electric 9SM12390-71 TRANSFORMER ASBLY M12390-71 Lincoln Electric 9SM12390-71 TRANSFORMER ASBLY M12390-71 Sale Price: $422.09 Original Price: $485.40 TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1