Lincoln Service Parts 1 › Lincoln Electric 9S0600-0429-1 ST450 UPPER MTR ASBLY 0600-0429-1 Lincoln Electric 9S0600-0429-1 ST450 UPPER MTR ASBLY 0600-0429-1 Sale Price: $2,420.12 Original Price: $2,783.14 ST450 UPPER MTR ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! ST450 UPPER MTR ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1