Lincoln Service Parts 2 › Lincoln Electric 9SS31171-3 PRESSURE SWITCH ASBLY S31171-3 Lincoln Electric 9SS31171-3 PRESSURE SWITCH ASBLY S31171-3 Sale Price: $126.63 Original Price: $145.63 PRESSURE SWITCH ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! PRESSURE SWITCH ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1