Lincoln Service Parts 1 › Lincoln Electric 9SL7519 HEAT SINK (DC NEGATIVE) L7519 Lincoln Electric 9SL7519 HEAT SINK (DC NEGATIVE) L7519 Sale Price: $181.16 Original Price: $208.33 HEAT SINK (DC NEGATIVE) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! HEAT SINK (DC NEGATIVE) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1