Lincoln Service Parts 1 › Lincoln Electric 9SM18720-61 RELAY M18720-61 Lincoln Electric 9SM18720-61 RELAY M18720-61 Sale Price: $1,116.30 Original Price: $1,283.75 RELAY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! RELAY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1