Lincoln Service Parts 1 › Lincoln Electric 9SG7578 FEEDPLATE INSULATOR G7578 Lincoln Electric 9SG7578 FEEDPLATE INSULATOR G7578 Sale Price: $16.70 Original Price: $19.20 FEEDPLATE INSULATOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! FEEDPLATE INSULATOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1