Lincoln Service Parts 1 › Lincoln Electric 9SL5291-4 CONTROL BOX ASBLY L5291-4 Lincoln Electric 9SL5291-4 CONTROL BOX ASBLY L5291-4 Sale Price: $4,296.90 Original Price: $4,941.43 CONTROL BOX ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! CONTROL BOX ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1