I own a Snapper Yard Cruiser that has a left side (as sitting on the mower) transaxle pump issue. The Snapper dealer told me the pump was getting weak. A new pump is over $700. I googled the part number and did not find any used pumps for sale. I frequently check ebay and craigslist. I called a pump business that speciallizes in re-building lawnmower pumps. They told me the consumer model pumps are disposable. Any suggestions to locate a used pump?