Android,
For what it's worth,
PRECISION REBUILDERS will remanufacture your Hydrovac if you want. Usually, you take it to a local big truck suppier/repair place near you, and they either swap it out for a reman. unit they have on the shelf, or ship it to Precision to take care of it.
They're a good outfit - consider giving them a call if you can't find anything else.
-Michael
