Lincoln Service Parts 1 › Lincoln Electric 9SM27370 ISOLATION TRANSFORMER M27370 Lincoln Electric 9SM27370 ISOLATION TRANSFORMER M27370 Sale Price: $3,587.99 Original Price: $4,126.19 ISOLATION TRANSFORMER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! ISOLATION TRANSFORMER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1