Lincoln Service Parts 1 › Lincoln Electric 9SG6505 HEATSINK (SWITCH BOARD) G6505 Lincoln Electric 9SG6505 HEATSINK (SWITCH BOARD) G6505 Sale Price: $1,406.70 Original Price: $1,617.70 HEATSINK (SWITCH BOARD) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! HEATSINK (SWITCH BOARD) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1