Lincoln Service Parts 1 › Lincoln Electric 9SM13432-3 RECTIFIER CATHODE HEATSINK M13432-3 Lincoln Electric 9SM13432-3 RECTIFIER CATHODE HEATSINK M13432-3 Sale Price: $51.73 Original Price: $59.49 RECTIFIER CATHODE HEATSINK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! RECTIFIER CATHODE HEATSINK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1