Lincoln Service Parts 1 › Lincoln Electric 9SM18139 CONTROL BOX COVER M18139 Lincoln Electric 9SM18139 CONTROL BOX COVER M18139 Sale Price: $90.74 Original Price: $104.35 CONTROL BOX COVER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! CONTROL BOX COVER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1