Lincoln Service Parts 1 › Lincoln Electric 9SG9818-4E VALVE G9818-4E Lincoln Electric 9SG9818-4E VALVE G9818-4E Sale Price: $343.81 Original Price: $395.38 VALVE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! VALVE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1