Lincoln Service Parts 1 › Lincoln Electric 9SM21143-4 DOOR AND FOAM ASBLY M21143-4 Lincoln Electric 9SM21143-4 DOOR AND FOAM ASBLY M21143-4 Sale Price: $1,838.79 Original Price: $2,114.61 DOOR AND FOAM ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! DOOR AND FOAM ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1