So I found this vent tube on the ground the other day near where I had been using the tractor. Not 100% it belongs to this tractor, but it doesn't appear to be cracked or brittle, making me wonder if it had fallen off while using the tractor in the area. I checked under the seat, as in removed the six-8 mounting bolts/nuts so I could get to the top of the rear end, and there doesn't seem to be a place for this vent. Anywhere else it could go, or does it even belong to this L3430 tractor?