Lincoln Service Parts 1 › Lincoln Electric 9SM12405 LOWER ARM ASBLY M12405 Lincoln Electric 9SM12405 LOWER ARM ASBLY M12405 Sale Price: $30.83 Original Price: $35.45 LOWER ARM ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! LOWER ARM ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1