Lincoln Service Parts 2 › Lincoln Electric 9SS31229-54 MOTOR, 20HP S31229-54 Lincoln Electric 9SS31229-54 MOTOR, 20HP S31229-54 Sale Price: $3,320.10 Original Price: $3,818.11 MOTOR, 20HP PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! MOTOR, 20HP PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1