Lincoln Service Parts 2 › Lincoln Electric 9ST11976-5 HEAT SINK & DIODE ASBLY T11976-5 Lincoln Electric 9ST11976-5 HEAT SINK & DIODE ASBLY T11976-5 Sale Price: $176.03 Original Price: $202.44 HEAT SINK & DIODE ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! HEAT SINK & DIODE ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1