Lincoln Service Parts 1 › Lincoln Electric 9SM31044-3 POST EXTENSION KIT M31044-3 Lincoln Electric 9SM31044-3 POST EXTENSION KIT M31044-3 Sale Price: $1,618.30 Original Price: $1,861.04 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