need parts for a yt 6700

 I have two yamaha ridding mowers and need a part for the front of the deck The Yamaha part# JE8-52424-00-00   Link-4 is the name on the parts list, This piece has two bolts that mounts to the front of the deck and two bolts that bolt to the front of the frame, This part is no longer avalable from yamaha, Does any one know of a place where I can get one or if someone has made a replacment part for this 4 link part, I have broken this part on both mowers and welded it once on both mowers and would like to get a new one if I can find one, Thanks, Tommy Jordan