Black Series water tanks vary by model and by tank type (fresh, grey, and where fitted, black), so match the replacement by your model, the tank's capacity, and its mounting dimensions. Tanks are identified by capacity (litres/gallons), the inlet/outlet/sender fitting layout, and the cradle/mount they sit in. Measure your old tank or note your model, then match the part below.
How to identify your water tank
- Type: fresh (potable), grey (sink/shower waste), or black (toilet waste) — confirm which tank you're replacing.
- Capacity: note the litres/gallons stamped or specified for your model.
- Dimensions: measure L × W × H of the tank and its mounting cradle.
- Fittings: note inlet, outlet, vent, drain and level-sender port positions.
Black Series water tanks by type & capacity
Our tanks are stocked by type and capacity rather than by camper model, so match the tank you're replacing to one below. Confirm capacity and the fitting layout against your old tank before ordering — if yours isn't listed, send us your measurements.
| Tank | Type | Capacity | Part # (SKU) | Link |
|---|---|---|---|---|
| Water Tank (multiple options) | Drinking / general / grey / black | Up to 64 gal (option) | RVP-00274 | View tank |
| Water Tank (grey / black) | Grey / black | 26 gal | RVP-00090 | View tank |
| Stainless Steel Drinking Water Tank | Fresh (potable) | 16 gal | RVP-00189 | View tank |
| RV Fresh Water Tank | Fresh (potable) | 19 gal | RVP-00322 | View tank |
| RV Fresh / Gray Water Tank | Fresh / grey | 10 gal | RVP-00323 | View tank |
Not sure of your capacity or fittings? Send your model and tank measurements and we'll match the genuine Black Series tank. Browse everything in our Holding Tanks and Water collections.
Don't forget the fittings & sender
When replacing a tank, check the level sender, vent, and drain fittings — reuse them only if they're in good condition and match the new tank's ports. Replace perished hoses and clamps at the same time.
Replacing it — quick tips
- Drain and disconnect fully before removing; note hose routing with photos.
- Match the cradle/mount so the tank is properly supported when full (water is heavy).
- Sanitize a new fresh tank before first use.
Wider water work? Browse the full Water parts collection for pumps, valves and fittings.
FAQ
How big is the water tank on a Black Series HQ19?
Capacity varies by model and year — check your specs or measure the tank. Send us your model and we'll confirm the correct replacement capacity and fittings.
Can I fit a larger tank?
Only if the cradle space and plumbing allow it and the chassis can carry the extra weight. Match the original capacity unless you've confirmed clearance and load.
Are fresh and grey tanks interchangeable?
They differ by fittings and sometimes material/placement — match the correct tank type for the role you're replacing.
My capacity isn't listed — what now?
Send your model, tank type, and dimensions and we'll match the genuine Black Series tank even if the listing isn't in the chart yet.
Find the right tank: shop Black Series water tanks & fittings — in stock, ships from Upland, CA.