Lincoln Service Parts 1 › Lincoln Electric 9SM11478 COVER & NUT ASBLY M11478 Lincoln Electric 9SM11478 COVER & NUT ASBLY M11478 Sale Price: $346.28 Original Price: $398.22 COVER & NUT ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! COVER & NUT ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1