Lincoln Service Parts 1 › Lincoln Electric 9SG4481-48 ASSEMBLY, MUFFLER RESTRICTION G4481-48 Lincoln Electric 9SG4481-48 ASSEMBLY, MUFFLER RESTRICTION G4481-48 Sale Price: $117.90 Original Price: $135.58 ASSEMBLY, MUFFLER RESTRICTION PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! ASSEMBLY, MUFFLER RESTRICTION PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1