Lincoln Service Parts 1 › Lincoln Electric 9SM20521-2 MUFFLER BLANKET M20521-2 Lincoln Electric 9SM20521-2 MUFFLER BLANKET M20521-2 Sale Price: $1,238.68 Original Price: $1,424.48 MUFFLER BLANKET PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! MUFFLER BLANKET PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1