Lincoln Service Parts 1 › Lincoln Electric 9SM21600-1 SIDE DOOR (RED) M21600-1 Lincoln Electric 9SM21600-1 SIDE DOOR (RED) M21600-1 Sale Price: $514.58 Original Price: $591.77 SIDE DOOR (RED) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! SIDE DOOR (RED) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1