Lincoln Service Parts 1 › Lincoln Electric 9SG4555 MAIN TRANSFORMER ASBLY G4555 Lincoln Electric 9SG4555 MAIN TRANSFORMER ASBLY G4555 Sale Price: $2,019.80 Original Price: $2,322.77 MAIN TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! MAIN TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1