When your existing waste valve starts to leak, stick, or fail to seal, a bad valve can turn a routine dump station stop into a genuine mess. The Camco 39513 is a direct-replacement 3-inch slide valve designed specifically for RV black water holding tank outlets. It ships with installation hardware so you can get back on the road without a separate parts run.
The waste valve on your RV black water tank takes more abuse than almost any other fitting on the rig -- repeated cycling, corrosive waste, road vibration, and UV exposure all work against it over time. A valve that no longer seals fully is not just inconvenient; it risks slow leaks that contaminate the undercarriage and create odor problems inside the coach.
Camco's 39513 is a straightforward, properly sized replacement that restores a full shutoff. The slide-gate design allows complete flow when open and a positive seal when closed. Installation hardware is included, so a basic hand-tool job is typically all that stands between you and a working system again.
Matches standard 3-inch RV sewer outlet fittings for unrestricted waste flow during dumping.
Mounting bolts and hardware ship in the box -- no separate fastener kit required for most installs.
Designed specifically for RV black water holding tank service, where waste chemistry and odor seal are critical.
Backed by Camco's limited 90-day warranty against defects in materials and workmanship.
This valve is the right part if your existing 3-inch black water slide valve is:
It is also a practical spare to carry for extended trips, especially in cold-weather or boondocking situations where getting to a hardware store quickly is not an option.
The 3-inch diameter matches the near-universal sewer outlet standard used on the vast majority of North American RVs -- travel trailers, fifth wheels, Class A and Class C motorhomes, and toy haulers. If your existing valve is a 3-inch slide-gate style, this Camco replacement will fit the same bolt pattern in most cases.
Camco has been producing RV accessories and consumables since 1966 and is one of the most widely stocked brands at RV dealers and service centers across North America. Their waste system components -- valves, hoses, fittings, and caps -- are designed to meet the specific demands of RV sanitation plumbing, including the material and seal requirements that differ from standard residential plumbing parts.