Lincoln K and KP Numbers › Lincoln Electric KP3982-2 550A INSULATOR Lincoln Electric KP3982-2 550A INSULATOR Sale Price: $14.21 Original Price: $15.91 550A INSULATOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! 550A INSULATOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000