Welcome to the board! The plow was mounted on the tractor when I bought it, I didn't buy it new. I know there is a model # tag on it, but I'm having trouble locating it right now. The blade is 54" wide, and the whole unit is built like a tank. It's mounted to a subframe that runs under almost the whole length of the tractor. I used to run a 155d that had a similar setup, but was a manual angle plow that you had to set with pins. There are some around, but it might be difficult to find as a separate unit. I'll try to find the model number when the tractor is a bit cleaner. Not sure what you want to spend, but I'm sure it is something that could be fabricated. Maybe Coldwater loader could build one? Hope this helps. As a side note, I used to sample the Susquehanna river in Mehoopany for aquatic insects near the P&G paper plant. Again, welcome, might be worth starting a new thread in the Yanmar forum so everyone sees it, I'm sure someone can help.
Sorry for the hijack Winston.