30L Stainless Steel Underbody Water Tank to suit Toyota Prado 150 / Lexus GX 460 
With 30L capacity, our Underbody Water Tank is perfect for a quick weekend away, or as additional water storage for peace of mind when heading on a serious trip outback.  

PLEASE NOTE:  The tank requires the Genuine OEM Toyota Towbar fitted in your vehicle in order to be mounted. It is not compatible with the optional ‘Flat Tailgate Pack’ – the tank is only compatible with vehicles with rear door mounted spare tyres. 


  • Simple and intuitive install with detailed instructions included. 
  • 30L tank provides longer range water storage without occupying any space in the vehicle. 
  • Designed using 3D scanning to ensure a perfect fit. 
  • Using an underbody tank keeps weight lower in the vehicle, whilst taking advantage of a previous unused space.  
  • Built to withstand harsh conditions, with folds for added strength. 
  • Recessed design features optimised departure angles. 
  • Precision laser cut and TIG welded Stainless Steel.


  • 1 x 30L Underbody Water Tank to suit Toyota Prado 150 / Lexus GX 460. 
  • All fitting hardware required to fit the tank are included, as well as a quarter-turn lockable tap and water level sight gauge. 

Australian Designed, Made and Owned 
For full product details, common questions and other important details for this product, see the Product FAQ tab.  


Can the 30L Underbody Water Tank be fitted without a towbar?

No, the tank requires OEM Genuine Toyota towbar in order to be mounted. 

Is the water tank compatible with both 2018–Current 3 tonne capacity towbar and the 2009–2018 2.5t towbar?

We have updated the water tank so that brackets now sit under the factory towbar nuts, with longer bolts included. This design change makes the water tank suitable for all models of Prado 150 with factory Toyota tow bar. 

Can the 30L Underbody Water Tank be mounted to other towbars or aftermarket rear bars? 

No, the tank is only able to be fitted to the OEM Genuine Toyota towbar. It will not work with Kaymar Rear Bar or the Hayman Reese Towbar.  

Can the 30L Underbody Water Tank be used with a dual rear wheel carrier? 

Some rear bars retain the genuine Toyota tow bar. If your vehicle still has the genuine towbar, you can install the Kaon water tank. 

Do I need a pump? Do you know if anyone has pumped it through to come out through a hose outlet inside the vehicle? 

Pumps are handy to allow easier access to water outlet at a higher position and to increase pressure for use as a shower or with a nozzle. Some customers will run hose up into the rear door. A very simple solution would be to use an inline 12v pump with standard garden hose fittings. You could use it to fill and to pump out.

What sort of pump do people install with the tank?  

You can use a small diaphragm pump or a centrifugal pump.  Centrifugal pumps are not self-priming an need to be installed at the same level at the water tank. 


Can the tank be filled without the use of a hose?

It is best done with a hose. It could be done without, but would be very slow and somewhat difficult to do.  

Can digital tank fill level senders and gauges be fitted to the tanks so that the water level can be checked from within the vehicle? 

It is possible, you would need to drill a hole for the sender if you want to use the level meter. 

SKU KS0163
Brand KAON
Shipping Weight 9.6000kg
Shipping Width 0.220m
Shipping Height 0.280m
Shipping Length 0.880m
Shipping Cubic 0.054208000m3
Unit Of Measure ea

Awesome product

By: on 3 July 2021
Was looking for a solution to carry water without taking up room in the back of my prado. Quality construction and so easy to instal. Cheers.

30L Stainless Steel Underbody Water Tank 150 Serie

By: on 8 June 2021
Happy with product. Quality construction and easy to install.

Water tank fits nicely & out of the way

By: on 31 May 2021
Great design & relatively easy to fit.

Stainless Tank

By: on 19 November 2019
Great product, great quality, good tracking and delivery. Thanks

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