Lincoln Service Parts 1 › Lincoln Electric 9SG8839-4 CASE BACK G8839-4 Lincoln Electric 9SG8839-4 CASE BACK G8839-4 Sale Price: $383.88 Original Price: $441.46 CASE BACK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! CASE BACK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1