Lincoln Service Parts 1 › Lincoln Electric 9SM16733-8 SWITCHBOARD HEATSINK M16733-8 Lincoln Electric 9SM16733-8 SWITCHBOARD HEATSINK M16733-8 Sale Price: $599.23 Original Price: $689.11 SWITCHBOARD HEATSINK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! SWITCHBOARD HEATSINK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1