Lincoln Service Parts 1 › Lincoln Electric 9SM20439-1 INPUT PANEL M20439-1 Lincoln Electric 9SM20439-1 INPUT PANEL M20439-1 Sale Price: $7.66 Original Price: $8.81 INPUT PANEL PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! INPUT PANEL PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1