Hydrovacs are pretty commonly rebuilt. There is a place here in town that rebuilds them. They didn't have a kit for mine but called and found one already rebuilt in NC. I had it back in the truck before the shop could have rebuilt it. My core was good, but I could have paid the core charge if it wasn't. If your hydrovac isn't original, and had lost the tag then it might be fun figuring out what you have. Shoot, even NAPA had my hydrovac, but i had it rebuilt for about 1/3 their price.
