Lincoln K and KP Numbers › Lincoln Electric K489-1 MAGNUM FAST-MATE ADAPTER. Lincoln Electric K489-1 MAGNUM FAST-MATE ADAPTER. Sale Price: $281.18 Original Price: $314.92 MAGNUM FAST-MATE ADAPTER. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM FAST-MATE ADAPTER. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000