4WD Water Tanks
Choose a 4WD water tank by where it mounts
Tuff Terrain 4WD water tanks are moulded polyethylene and made for Australian touring. The right one depends on the space you've got free: the spare wheel mount, the rear footwell, the ute tub wall, or under a tray or camper.
| Tank | Capacity | Where it mounts | Size |
|---|---|---|---|
| Spare Wheel Underbody Tank | 62L | Free underbody spare wheel mount | 730 × 730 × 200mm |
| Spare Wheel Underbody Tank | 35L | Free underbody spare wheel mount (24" tyre footprint) | 555 × 555 × 170mm |
| Poly Footwell Tank | 40L | Rear passenger footwell of most 4WDs | 1200 W × 190 H × 250 D mm |
| Poly Vertical Tank | 42L | Ute tub or canopy wall, between the wheel arches | 1295 L × 600 H × 75mm thick |
| Poly Vertical & Flat Tank | 45L | Vertical or flat: behind seats, on trays, in canopies or under camper frames | 1090 × 580 × 90mm |
| Portable tanks on wheels: 25L, 40L, 75L | 25–75L | No mounting. Roll it to the tap and back to camp. | See each tank |
What to check before you buy
- Spare wheel tanks: you need a free underbody spare mount. The 108mm centre hole suits spare winches up to 145mm, with four extra mounting holes 500mm apart. Keep at least 50mm between the tank and the exhaust, and add a heat shield where clearance is tight. Internal baffles cut water surge on rough tracks.
- Footwell tank: the central recess sits over the raised section in the rear footwell.
- Vertical tank: at 75mm thick it sits flush against a tub or canopy wall. Measure your tub width between the wheel arches first.
- Filling: the 40L, 42L and 45L tanks take the straight filler kit. There's also a curved filler kit for other mounting positions.
- Running water: the 1/2" BSP brass outlets on the footwell, vertical and flat tanks connect to common fittings and 12V pumps, such as our 12V water pump.
- Installation: we recommend a qualified installer for under-vehicle, footwell and flat-mount tanks.
Water tanks for caravans and camper trailers
Fitting out a van, camper or RV? See our caravan and RV water tanks for underfloor tanks you can link together. For pumps, filler kits and flow meters, see tank accessories.
Not sure how much water you'll need? Read our guide to choosing a water tank.
