Lincoln K and KP Numbers › Lincoln Electric K4521-2-10-45 MAGNUM PRO 400WC Lincoln Electric K4521-2-10-45 MAGNUM PRO 400WC Sale Price: $1,861.91 Original Price: $2,085.34 MAGNUM PRO 400WC PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO 400WC PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000