Lincoln Service Parts 1 › Lincoln Electric 9SG6204-54 THERMAL SWITCH, 66C G6204-54 Lincoln Electric 9SG6204-54 THERMAL SWITCH, 66C G6204-54 Sale Price: $194.74 Original Price: $223.95 THERMAL SWITCH, 66C PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! THERMAL SWITCH, 66C PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1