Lincoln Service Parts 1 › Lincoln Electric 9SM31044-1 POST EXTENSION KIT M31044-1 Lincoln Electric 9SM31044-1 POST EXTENSION KIT M31044-1 Sale Price: $1,146.75 Original Price: $1,318.76 POST EXTENSION KIT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! POST EXTENSION KIT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1